40/60 milk to water, i just finished watching 7 videos on this depressive subject of PM, ha ha, but am very happy it can be eradicated fairly easy. Then again i did foliar fed a week ago and what i see could be dry residue from it. Will certainly do more investigation on this. THANX soil expert ASHLEY for your easy to comp teaching, can feel your true and caring soul.
@@GardeningInCanada In this despicable world we find ourselves in, it's not too hard to sense a humble and basically a real person with the spark. have you ever heard of the 11:11 phenomenon?
I had mildew on my zucchini and yellow squash plants. I only got one mature yellow squash. So I pulled out the non-producers. But I've heard of spraying 50/50 milk / water, maybe straight milk would be better. Might make your garden stink for a while, but it's worth it if it kills mildew. Is mouthwash better than milk for killing mildew? I was thinking the mint smell might discourage insects. I say burn the infected foliage/plants if your community allows burning. My town does not allow plant matter in trash; it must be put at the curb on a specific collection day each week during the "season". I have no idea what they do with it. I hope they incinerate it, but I wouldn't put it past them to compost it and then sell it back to the public. Something to ask my local co-op extension about. Thanks for the video Ashley. See you next time!!!
I am having an infection of powdery mildew on a few of my peppers, probably due to Leveillula taurica, since it develops only on the underside of the leaves (and it has a peculiar smells too, something barely fishy). Usually here in italy we treat this with elemental suplhur powder or wetting sulphur, but the store were I usually buy stuff was closed for holidays, so i tried the 50 : 50 milk/water solution. It seems to work to some degree, in a few days I'll do a second application. Just two advices: 1) If you try it on indoor plants or potted plants on a balcony, a patio and stuff, be careful, it makes quite a sticky mess and it smells bad for a few days. 2) Wasps seem VERY VERY interested (maybe they smell proteins/fats). They're not a problem for me, on the contrary I am happy to see them, they usually are helpful, predating caterpillars or other pests, but for people scared or allergic to them, better safe than sorry. Anyway, it lasts only for a day, once it's dried, they will go elsewhere.
I'm so glad I've found this channel, I love the content and find them very helpful, thank you for being so generous in sharing your knowledge!:) I'm a novice to gardening and just started my journey last year. I planted a few courgette plants in containers this year and I lost them to powdery mildew,. It seemed to have spread to the marigold and some oriental greens that I planted in the raised beds as well. The infection looked very extensive so I decided to pull everything out in order to stop the spread, however I'm currently wondering what I should do to the remaining soil (both in the container and raised bed). Will the spores remain in it and affect my future plants? What would you suggest me doing?
I heard of cinnamon powder mixed in the soil to combat the fungi. I will try that next time before planting my zinnia flowers which seem to be a magnet for powdery mildew.
I had powdery mildew on sugar pie pumpkin leaves last summer. I still got pumpkins because they were already pretty good sized. So by the time it killed most of the leaves they were ripening up. I lost the battle this year with the squash but the water melon plants survived. I live in Oregon where it is humid. In the Willamette Valley we get a lot of rain and it was quite hot in the daytime, in the Summer, so I have this problem a lot.
Thank you, I appreciate you being so thorough! Can solve a problem of you dont know why the problem occurs. Other wise we'll just be treating symptoms and putting bandaids on broken bones.
The milk option is from the sunlight that releases free radicals which does work pretty well . I diluted 1 part milk to 3 parts water, though it did not remove it entirely. Only used it on my peas. However I am going to give the alcohol option. Many thanks
Earlier this summer, I started noticing all kinds of mushrooms growing in the back yard. We hadn't had much rain for awhile so I wondered what was promoting their growth and what kinds of mushrooms they were because almost all of them were unfamiliar to me. A few days later we got some rain overnight, and I found streaks of white down the sides and windows of my van. I don't recall ever seeing that happen after having it rain. Here in Calgary, we've had a lot of very smoky days, and I believe the residue on my van was "fall-out" from the wildfires, and likely included spores etc. along with a lot of other suspended particles. Since then, I've had a number of fungal issues which had been quite rare, aside from early blight and the "typical" garden issue. Tomorrow I'll be spraying with a whole milk solution and check it over the next few days...I've done foliar feeding with a milk mixture for calcium application, so maybe I can do that and take care of the mildew with one application...!
i like to space my plants out give them lots of airflow i always thought that helped keep the p.m. away. that and some defoliation, and having healthy plants to begin with. but idk. great show says a fun guy ;)
Try sulfure powder. it will prevent the powder mildew if applied earlier, if already started, the sulfer will stop the sapread. My dad used to farm large field of cantalope and he used to applied the sulfer early morning when the leaves were wet from the dew, so the sulfer powder would stick. The infected leaves you were showing would be considered desastrious for a farmer, ( at least for my dad 😀)
I spray the plants with a little potassium bicarbonate in water, then after I put sulphur dust on them with a puffer and it sticks to the wet leaves nicely, sulphur is the preventive and potassium bicarbonate kills what mildew is already there, fast.
Coming from a science background myself, I appreciate the scientific approach and explanations. However, your recommendations lack specific information as to formulation (dilution, full strength?), conditions and frequency (daily, weekly?) of use. Which, in many cases, are critical to the outcome. You vaguely reference "studies". It would be very helpful if you to cited those studies in the details section. Then, the methodology and results would've been readily available to review.
Great video, particularly comedic 😂. And I love when you struggle with the Latin/names. Repeat after me: “Charles Dowding has Podosphaera fuliginea on his Cucurbita moschata”. 😂😂😂
Last week I sprayed a 1:2 milk:water solution on the mildewed leaves. It has disappeared from the squash leaves (butternut, buttercup), but has returned with a vengeance on the pumpkin and cucumber. I may try 100% milk next time and use water on the cukes. The squash leaves now have yellow dots the mildew left behind...at least I think that's what it is. (I also fertilized 9-16-16 so maybe it helped the leaves...?) I'll send a pic on messenger.
Ugh, powdery mildew was my nemesis this year. That stuff is the spawn of Satan! It killed my zucchini, yellow beans, cucumber and now I see it on my butternut squash. 😐 interestingly enough, a month after my beans died, and I’m talking DEAD, gone, brown and crunchy, no leaves left... it’s now sprouted again and has beans on it! 😳😳😳🤷♀️
How many parts alcohol to water do you use ? How many parts mouthwash to water ? I’ve always thought alcohol might work . Mouthwash too . Great video! Thank you 😊
I do get powdery mildew on my zucchini, but it doesn't really seem to affect the production. Whether to compost or not is an interesting question, if it appears the very first time, it wasnt in your compost yet and appeared anyway. Charles Dowding, the no dig gardener seems to not worry on powdery mildew and just compost the leaves as have i in the past. Final question: doesnt alcohol dissolve the chlorophyl?
Powdery mildew always takes out my cucumbers and zucchini eventually. I'm going to fight it this year.....it got on one of my cannabis clones, so now its war! 😅 Thanks again for a very informative video.
If you want (totally optional) send me a video or a photo of the leaf rust in your yard and I’ll include it in the video itself. instagram.com/gardeningincanada or Facebook facebook.com/GardenInCanada/
I have a large rooftop with 5ft by 2.5ft planters, Powdery mildew started on my Clementis leaves, then to the Verbanin, then tomatoes, all my Petunias, (6 different varieties) my Bee Balm, and today I saw it on my Lilac bush leaves, so essentially everything, It stayed on my Clementis leaves for months and only in the last month spread to everything else - its bad too :(
I love how many times you’ve decided to leave this comment ☺️ all the name calling & such is truly so nice & a great way to start off 2021! Great job you must be a really nice person. FUN FACT: all these comments are going to help my channel greatly in the algorithm positive or negative they do wonders, thank you!
I love how many times you’ve decided to leave this comment ☺️ all the name calling & such is truly so nice & a great way to start off 2021! Great job you must be a really nice person. FUN FACT: all these comments are going to help my channel greatly in the algorithm positive or negative they do wonders, thank you!
Have you done an update on this where you tried the milk? I’ve tried it and found no success so I always find it confusing that it’s been scientifically proven to work.
Can I fix my soil that had powdery mildew plants…. Everywhere. ALL my gardens in my whole yards. Pumpkins, cucumbers, zucchini, squash, certain flowers, lilac trees.
Mine started on my sugar baby pumpkins, and went to my tomatoes and then zucchini :( I feel like maybe i had to much planted to close together? IDK it was my 1st year where i am, so I'm learning
Once you get to large scale like that it’s doubtful you’ll end up getting a large dose of spores. Also in many cases city composts are hot composts so a lot of bacterial & fungal issues are removed. BUT if you’re noticing a pattern year after year it definitely maybe something to consider. Even if it’s store bought bag compost.
Darn. Ive fought this all year and blight. About to do an all out tear out. My peppers are coming in for winter😀 i think i will do well to move them to pots before i bring them in. How about pouring boiling water over soil. I know this will kill beneficial bacteria. My neighbor has it worse. Im sure spores blow over. Its about ,200' away. How much rubbing alcohol? I have iso alcohol. As i say how bout boiling water after plants are out?
Thanks for the info! I'm here looking for options to battle pm in my medical cannabis plants. I have found indoors it seems to like dry and cold conditions. It seems most (cannabis) growers associate it with molds and then assume it likes warm and humid climates. As many cannabis growers grow from clones almost exclusively, it's appears as if the pm is never gone entirely. I have heard many call it cannabis AIDS for this reason. The only way I know to keep it at bay is through climate controls. I have recently been hearing talk of specialized air purifier products that can be bought. I am sure this is possible but I would imagine the grow room would have to be almost as sterile as a surgical operating room. I have seen milk work extremely well to destroy visible pm on the leaves. It is not very effective as preventative though. I can't possibly convey to you how frustrating pm is in indoor cannabis growing! I'm definitely going to try some things mentioned in this video. Thanks again for the valuable information!
Unfortunately we can’t be using milk on indoor plants. I never had a problem with PM indoors until just recently and within a couple weeks my entire facility was infected. I can’t find a way of getting rid of it short of emptying my entire facility for a week and getting clean plants, which is economically impossible.
god, i hate this stuff...!!! got if on my Cannabis plant initially, then my roses and now my sweet peas leaves.... thanks for the great info... seems like it gets worse every year now.. grrrrrrrrrr
Good informations about what is PM. As for cure and prevention, it's a bit light for a scientific video. Nothing on fongicides, beneficial bacterias/fungi (like bacillus subtilis), high pH etc.. A lot of informations out there and I was hoping for someone to separate bro science from actual science, without having to read all those studies that might be a little hard for non-specialists. Also with milk, there's quitte a few differents answers, some says it's better to use whole milk, some says light milk, some says you have to apply it during sunny day, some says the bacterias in milk needs dark time (evening) to spread.. Also, I was wondering if you can monitor PM with a microscope for example? So you can see if it's still there before it's showing to the naked eye. Sorry about my English :)
Unrelated: after all the saturating storms we've had here, mushrooms are growing in my yard. They are plain white. Are they edible? I don't use lawn pesticides or fertilizer. Just curious. I know you can't answer definitively because you can't see the mushrooms in my yard. Best guess?
Most likely not. Mushrooms are so finicky just because of how subtle changes in the mushroom signifies a different type. It’s so hard to tell. I’m sure there are groups in the area who would know
So I'll be a good bloke and not send my mildewed clippings to county compost. My neighbour has a beautimus big steaming pile of compost across the alley. I set up a trebuchet to jettison them straight to his pile. It took a few tries to get the aim sorted. I expected he would have suspected something when my first load landed on his roof.
Bacteria in sour milk works a treat, used this as a preventative food type by mixing with water and feeding the plants ( cucumbers in this instance) and also can use as a spray directly on the leaves and mix with water and drop of detergent as a emulsifier
So, some wonky info here about PM and how to get rid of it... Firstly, as I understand it, it's the humidity change that allows powdery mildew to proliferate and allow its spores to infect a plant's leaves.... And oddly enough though, water will do 2 things, first, it will wash off mold spores, and second and more importantly, it will inactivate mold spores and make them unable to infect a plant.. Which is why sprays of water will work to curb your PM infestation and why you were able to sometimes stop PM with water daily water sprays. There are some pesticide products that have been shown to work, including neem, but notably regalia and potassium bicarbonate. A lot of times with most of these products you are either washing mold spores off OR inactivating/killing the mold via the application of wet droplets to a mold spore. What really seems to work for active PM is UVc and UVb light, which will kill PM on plants used correctly, there are now products on the market that are aiding with this, but likely overpriced versus a DIY approach using the same lights/bulbs/fixtures.
is not powdery mildew a plant nutrition problem? i would expect that is what soil science tells us, not a discussion of the fungal disease or even just aphids. i really find this strange.. blessings
@@GardeningInCanadawould you say aphids have nothing to do with plant nutrition? i pass judgement on this very fundamental statement. even when your major is plant science, even if you get a phd on it. nowadays i do not get powdery mildew ever in my garden even in the worse of times while neighbors struggle with it. and i am a lawyer. blessings
Great question! And I have heard of this method working but it tends to depend on how severe the infection is. So try it out and then monitor to see if you’re seeing an stalls or increases in infection.
Thank you very much for providing this information. I’m trying again with zucchini this year and it feels good to know I can do something about this aggravating problem which happens every year. I was almost ready to give up on zucchini. Thankyou, thankyou!
Very informative video. I have been battling this all summer on my plants. I have tried different products to remove with no luck Southen AG Garden Friendly Fungicide, and Trifecta Crop Control. I am waiting on the next product to arrive Biota Max which has a blend of Trichoderma and Bacillus..fingers crossed. I have also heard that milk can help but have never tried it personally as well...
I’m going to try whey powder because i have to cover the entire plants (young haskap berry plants that weren’t very heathy to start -from a grocery store garden centre). i have heard horsetail Tea foliar spray is a preventive.
I wasn't entirely clear, but I believe you were suggesting to water in the evening, to keep the moisture around the plant leaves. Since I have traditionally done this, despite most gardening advice, I don't believe it will reduce powdery mildew. I get powdery mildew every year, and it essentially stops the zuchinni and squash production. i have had good experience with the milk as a foliar spray (I have heard various dilutions from 10-40%), but I just learned this year, that it should be done in hot sun, otherwise the milk proteins won't seal onto the plant leaf suffocating the mildew. I suspect the mildew must overwinter in the soil, as I NEVER compost those plants, allways take them off the property, and I still have the issue. I have never tried the alcohol, so I think that will be worth a try, especially for the ones in more shady area. Thanks for the info.
I couldn't find this level of detailed information anywhere else, THANK YOU! The milk method works fantastically for me-- my milk to water ratio is 4 to 6, and I spray it on at noon when the sunlight is strongest.
So glad to find this channel, thank you so much for sharing your knowledge. I’ve just subscribed. I plan to check out your other videos. We’ve just moved from a zone 7 to a zone 3. So much to learn. Thank you. :)
My cats just as crazy. Just a thought, maybe you could do a video on plants that are toxic to cats or dogs. I have 2 cats and I’ve read that you should very careful not to let them near kalinchoe or lilys or dahlias and a few other plants I have in the garden. Is this something that’s overstated or should I be washing my hands and clothes after touching these plants and petting my cats? Thanks for the great content!
So it’s a cucumber beetle that spreads it on cucumbers. I have also besides h2o2 and water some recommended diluted milk, but it smells! Again because it’s alkaline they say these work, true?
It’s just getting started on my melons and I watched some videos and settled on using copper fungicide, but came to your video to see the science. You didn’t mention it at all, would it work also?
I love how many times you’ve decided to leave this comment ☺️ all the name calling & such is truly so nice & a great way to start off 2021! Great job you must be a really nice person. FUN FACT: all these comments are going to help my channel greatly in the algorithm positive or negative they do wonders, thank you!
@Fester Adams no not at all I’m just trying to reply to every single comment you leave because it helps my channel in the algorithm 🤗 keep them coming I honestly don’t mind at all
@Fester Adams 😂 um I’m pretty sure you’re the one looking a little silly not me... and yes I do enjoy growing my channel especially when I know it’s going to irritate people such as yourself. However! Normal people who want to bring a new concept to the table generally say “hey, have you heard of UV lights for powdery mildew? I’ve read up lots on it and think it’s possibly a better alternative” or “I use UV light for powdery mildew & it works great! You should do a video on it some of your subscribers may find it helpful”. Instead you kind of went a bit wild
Comfrey, cabbage and weed fermented fertilizer usually works great to hold off powdery mildew off my squash plants to a point When we get our first mild frost they are done anyway Im going to try and cover mine up in the fall im hoping to extend the season for a few :)
@@GardeningInCanada for fertilizer i would say yes...it smells as a fermented brew...i just fertilized all my flowering and fruiting plants with it Ive used it for about 3 or 4 years now and don't have to use chem fertilizers at all And in my opinion it works well as good or better than miracle grow It also feeds the good microbes But i put it on before a good rain so it will wash off I don't water leafy plants cuz they will get a flower boost lol and we don't want that You can also use comfrey as a chop and drop Some people say some varieties spread more than others but i don't spread the seed part around and it dosnt spread But it takes up s meter squared fully grown after a few years
@@GardeningInCanada yes lots of great information out there on it...its fermented with molasses as the sugar... and i put it in a white plastic jug to keep the light out and the lid on burb it everyday Same science as compost tea in a way you would use a bubbler But with fermenting you just keep the air out with a lid and burping it to let the co2 out i believe thats the gass that collectes in ferments
It is haunting my schefflera. I've been trying to clean it off and remove the dead leaves and spray thoroughly with Neem oil, but it keeps coming back. Part of it might be that I didnt take care to make sure the fallen leaves were all removed because they fall in awkward ways in the branches. I don't want to prune much because she'll be bald. It's tough with houseplants, yknow? If I can't get it to go away, I'm gonna buy a little carton of whole milk (I don't have it on hand because I'm lactose intolerant - especially bad with whole milk) and like put it on cotton balls and rub every leaf and stem and branch. I swear!
Thanks for the video, I have powdery mildew in my yucca plant, I tried 3 teaspoon baking soda +2 teaspoon liquid soap +1 teaspoon vegetable oil in 500 cc water, sprayed the plant 3 times within a wk, it is hard to tell if there is response or not so I will try the milk.
A couple of thoughts from a newbie lazy gardener: setting up the garden to prevent growth: if the ideal situation for powdery mildew is dry soil + humidity around the leaves, could a good deep mulch approach coupled with vertical growth and pruning help by keeping the soil moist and keeping the leaves dryer? I've also seen a video of a permaculture gardener who uses hydrogen peroxide, thinned in water, on his susceptible plants to very good effect. Since H2O2 can be effective in killing fungus and molds, could it also be effective as a treatment for early signs before too much of the leaf gets damaged?
so once treated is it gone, or will it still be there in future generations like if youre taking clones of a plant, is there ways to get rid of it from a plant or will it only ever be treatable once its on a plant
@@GardeningInCanada ive already noticed it in my garden, thats why i ask, was trying to figure out if i would be able to save the genetics or if i should start new, id like to save them if possible, but if theyre done, theeeen, theyre done lol, thankyou for responding
I had it on my house plant Pellionia repens common name Watermelon Begonia. I looked at the leave under the microscope and could see the hyphae so I knew it was a fungus then I thought could it be powdery mildew? So that is how I found your channel.
Powder mildew appeared in my raised bed cucumbers, now it appears on other potted plants in garden...Loads of videos later and I ended up on your channel! I have tried every home remedy and I'm still searching before I rip the plants up!
@@GardeningInCanadaIt is my belief that knowing the science behind a topic, allows me to understand causes (or antecedent) and therefore I am able to apply that knowledge in ALL areas of my life! Keep on teaching! Lessons learned, can be lessons applied!
@@GardeningInCanada for me it was my cucumbers that got totally devistated this year, but maybe something general? Keep up the great work, I love the scientific rigour you put into gardening
![DDG & G Herbo - Nosey [Official Video]](http://i.ytimg.com/vi/I9Ra0Zc2NlQ/mqdefault.jpg)
40/60 milk to water, i just finished watching 7 videos on this depressive subject of PM, ha ha, but am very happy it can be eradicated fairly easy. Then again i did foliar fed a week ago and what i see could be dry residue from it. Will certainly do more investigation on this. THANX soil expert ASHLEY for your easy to comp teaching, can feel your true and caring soul.
I appreciate that! Thank you ❤️❤️
@@GardeningInCanada In this despicable world we find ourselves in, it's not too hard to sense a humble and basically a real person with the spark. have you ever heard of the 11:11 phenomenon?
Thanks for watching! Have you had powdery mildew? On what plants? How did you cure it?
I had mildew on my zucchini and yellow squash plants. I only got one mature yellow squash. So I pulled out the non-producers. But I've heard of spraying 50/50 milk / water, maybe straight milk would be better. Might make your garden stink for a while, but it's worth it if it kills mildew. Is mouthwash better than milk for killing mildew? I was thinking the mint smell might discourage insects. I say burn the infected foliage/plants if your community allows burning. My town does not allow plant matter in trash; it must be put at the curb on a specific collection day each week during the "season". I have no idea what they do with it. I hope they incinerate it, but I wouldn't put it past them to compost it and then sell it back to the public. Something to ask my local co-op extension about. Thanks for the video Ashley. See you next time!!!
Mouthwaste seems to work for me and I haven’t had any horrible effect for it to date.
baking soda and water one time stopped white powder
Basil. Completely destroyed all the plants. Haven't been able to harvest in 3 years. Miss my pesto. ;
Ugh that’s the worst... is it residing in the soil?
I am having an infection of powdery mildew on a few of my peppers, probably due to Leveillula taurica, since it develops only on the underside of the leaves (and it has a peculiar smells too, something barely fishy).
Usually here in italy we treat this with elemental suplhur powder or wetting sulphur, but the store were I usually buy stuff was closed for holidays, so i tried the 50 : 50 milk/water solution.
It seems to work to some degree, in a few days I'll do a second application.
Just two advices:
1) If you try it on indoor plants or potted plants on a balcony, a patio and stuff, be careful, it makes quite a sticky mess and it smells bad for a few days.
2) Wasps seem VERY VERY interested (maybe they smell proteins/fats). They're not a problem for me, on the contrary I am happy to see them, they usually are helpful, predating caterpillars or other pests, but for people scared or allergic to them, better safe than sorry. Anyway, it lasts only for a day, once it's dried, they will go elsewhere.
Very interesting! Great advice
I'm so glad I've found this channel, I love the content and find them very helpful, thank you for being so generous in sharing your knowledge!:) I'm a novice to gardening and just started my journey last year. I planted a few courgette plants in containers this year and I lost them to powdery mildew,. It seemed to have spread to the marigold and some oriental greens that I planted in the raised beds as well. The infection looked very extensive so I decided to pull everything out in order to stop the spread, however I'm currently wondering what I should do to the remaining soil (both in the container and raised bed). Will the spores remain in it and affect my future plants? What would you suggest me doing?
they could yes. However, beneficial critters like nematodes will eat the spores over time. so that's something to consider
That's great to know! Do you know which specific nematode is best for this purpose?
I heard of cinnamon powder mixed in the soil to combat the fungi. I will try that next time before planting my zinnia flowers which seem to be a magnet for powdery mildew.
Thankyou for this information! Very much needed for me and my garden!!
I had powdery mildew on sugar pie pumpkin leaves last summer. I still got pumpkins because they were already pretty good sized. So by the time it killed most of the leaves they were ripening up. I lost the battle this year with the squash but the water melon plants survived. I live in Oregon where it is humid. In the Willamette Valley we get a lot of rain and it was quite hot in the daytime, in the Summer, so I have this problem a lot.
Thank you, I appreciate you being so thorough! Can solve a problem of you dont know why the problem occurs. Other wise we'll just be treating symptoms and putting bandaids on broken bones.
The milk option is from the sunlight that releases free radicals which does work pretty well . I diluted 1 part milk to 3 parts water, though it did not remove it entirely. Only used it on my peas. However I am going to give the alcohol option. Many thanks
Earlier this summer, I started noticing all kinds of mushrooms growing in the back yard. We hadn't had much rain for awhile so I wondered what was promoting their growth and what kinds of mushrooms they were because almost all of them were unfamiliar to me. A few days later we got some rain overnight, and I found streaks of white down the sides and windows of my van. I don't recall ever seeing that happen after having it rain.
Here in Calgary, we've had a lot of very smoky days, and I believe the residue on my van was "fall-out" from the wildfires, and likely included spores etc. along with a lot of other suspended particles. Since then, I've had a number of fungal issues which had been quite rare, aside from early blight and the "typical" garden issue.
Tomorrow I'll be spraying with a whole milk solution and check it over the next few days...I've done foliar feeding with a milk mixture for calcium application, so maybe I can do that and take care of the mildew with one application...!
i like to space my plants out give them lots of airflow i always thought that helped keep the p.m. away. that and some defoliation, and having healthy plants to begin with. but idk. great show says a fun guy ;)
very good need deserve more views i really wanted to understand what im dealing with and no better way then biology
Thank you so much
Best video on PM out there
Thank you!
Try sulfure powder. it will prevent the powder mildew if applied earlier, if already started, the sulfer will stop the sapread.
My dad used to farm large field of cantalope and he used to applied the sulfer early morning when the leaves were wet from the dew, so the sulfer powder would stick.
The infected leaves you were showing would be considered desastrious for a farmer, ( at least for my dad 😀)
yea that would work
I spray the plants with a little potassium bicarbonate in water, then after I put sulphur dust on them with a puffer and it sticks to the wet leaves nicely, sulphur is the preventive and potassium bicarbonate kills what mildew is already there, fast.
Coming from a science background myself, I appreciate the scientific approach and explanations. However, your recommendations lack specific information as to formulation (dilution, full strength?), conditions and frequency (daily, weekly?) of use. Which, in many cases, are critical to the outcome.
You vaguely reference "studies". It would be very helpful if you to cited those studies in the details section. Then, the methodology and results would've been readily available to review.
Have powdery mildew on my peonies and will try the milk & mouthwash, thanks
Where do dads keep their jokes?
In a dadabase...
AHAHHAHAHAHAHA YESS
Great video, particularly comedic 😂. And I love when you struggle with the Latin/names.
Repeat after me: “Charles Dowding has Podosphaera fuliginea on his Cucurbita moschata”. 😂😂😂
Very informative videos. Only thing I need to know is how much to apply on the plant and into the soils d compost?
Last week I sprayed a 1:2 milk:water solution on the mildewed leaves. It has disappeared from the squash leaves (butternut, buttercup), but has returned with a vengeance on the pumpkin and cucumber. I may try 100% milk next time and use water on the cukes.
The squash leaves now have yellow dots the mildew left behind...at least I think that's what it is. (I also fertilized 9-16-16 so maybe it helped the leaves...?) I'll send a pic on messenger.
Got them! We will get this video done on exactly what your encountering. Hopefully have it up for next week!
Could you not just treat affected foliage with your choice of method, be it whey or alcohol or whatever else prior to composting?
You'll never get 100% coverage and therefore never 100% destruction, so the answer is no if you are serious about amping up your prevention.
New subscriber here from Toronto.
Hello! 🙂
Thanks for the info. You did dismiss baking soda without explanation. It seems to be used with success. Why do you think that is?
It’s do to the pH I believe
Ugh, powdery mildew was my nemesis this year. That stuff is the spawn of Satan! It killed my zucchini, yellow beans, cucumber and now I see it on my butternut squash. 😐 interestingly enough, a month after my beans died, and I’m talking DEAD, gone, brown and crunchy, no leaves left... it’s now sprouted again and has beans on it! 😳😳😳🤷♀️
Ahahaha mutants it’s 2020 haven’t you heard 🤣🤣
Gardening In Canada 🤣 I know, what was I thinking?! 🤣🤣🤣
How many parts alcohol to water do you use ? How many parts mouthwash to water ? I’ve always thought alcohol might work . Mouthwash too . Great video! Thank you 😊
50% is a great starting point
Love the sciencey bits ! Really liking the content Ashley . All the best .. Jules
Thanks so much! That’s very kind
I do get powdery mildew on my zucchini, but it doesn't really seem to affect the production. Whether to compost or not is an interesting question, if it appears the very first time, it wasnt in your compost yet and appeared anyway. Charles Dowding, the no dig gardener seems to not worry on powdery mildew and just compost the leaves as have i in the past. Final question: doesnt alcohol dissolve the chlorophyl?
Could sulfer dust be used to combat it?
Yea!
So how would I applyand when is the best time?
Powdery mildew always takes out my cucumbers and zucchini eventually. I'm going to fight it this year.....it got on one of my cannabis clones, so now its war! 😅 Thanks again for a very informative video.
I have ordered yucca powder to increase my fight.
Nice! Let me know how is goes
How long can the spores or mycelium live without a host, dead or alive?
The spores. Ages
@Gardening In Canada without a host plant, alive or dead? Like they can lie dormant on surfaces?
Very helpful
Glad you enjoyed!
@@GardeningInCanada I sprayed with mouthwash solution and sure did eliminate it. 🙃
Haha that would do it!
Great video thanks. Maybe next video on leaf rust??
Yes! Love it!
What plants are you experiencing this on
@@GardeningInCanada I have a small apple tree and autumn brilliance serviceberry both have leaf rust
Okay awesome!
If you want (totally optional) send me a video or a photo of the leaf rust in your yard and I’ll include it in the video itself. instagram.com/gardeningincanada or Facebook facebook.com/GardenInCanada/
Can the infected leaves/plants not be turned into ash for the garden?
I have a large rooftop with 5ft by 2.5ft planters, Powdery mildew started on my Clementis leaves, then to the Verbanin, then tomatoes, all my Petunias, (6 different varieties) my Bee Balm, and today I saw it on my Lilac bush leaves, so essentially everything, It stayed on my Clementis leaves for months and only in the last month spread to everything else - its bad too :(
Oh man that’s so sad. Just make sure you really clean the foliage up and throw it out. It will make a big difference!
I love how many times you’ve decided to leave this comment ☺️ all the name calling & such is truly so nice & a great way to start off 2021! Great job you must be a really nice person. FUN FACT: all these comments are going to help my channel greatly in the algorithm positive or negative they do wonders, thank you!
I love how many times you’ve decided to leave this comment ☺️ all the name calling & such is truly so nice & a great way to start off 2021! Great job you must be a really nice person. FUN FACT: all these comments are going to help my channel greatly in the algorithm positive or negative they do wonders, thank you!
Have you done an update on this where you tried the milk? I’ve tried it and found no success so I always find it confusing that it’s been scientifically proven to work.
Can I fix my soil that had powdery mildew plants…. Everywhere. ALL my gardens in my whole yards. Pumpkins, cucumbers, zucchini, squash, certain flowers, lilac trees.
Would anaerobic compost kill it?
Unfortunately not - spores can survive everything.
Mine started on my sugar baby pumpkins, and went to my tomatoes and then zucchini :( I feel like maybe i had to much planted to close together? IDK it was my 1st year where i am, so I'm learning
So, if it survives on compost, people should probably be careful picking up compost from the city composting facility.
Once you get to large scale like that it’s doubtful you’ll end up getting a large dose of spores. Also in many cases city composts are hot composts so a lot of bacterial & fungal issues are removed. BUT if you’re noticing a pattern year after year it definitely maybe something to consider. Even if it’s store bought bag compost.
Your opinion that’s fine ☺️
Darn. Ive fought this all year and blight. About to do an all out tear out. My peppers are coming in for winter😀 i think i will do well to move them to pots before i bring them in. How about pouring boiling water over soil. I know this will kill beneficial bacteria. My neighbor has it worse. Im sure spores blow over. Its about ,200' away. How much rubbing alcohol? I have iso alcohol. As i say how bout boiling water after plants are out?
I had it in pumpkins
Thanks for the info! I'm here looking for options to battle pm in my medical cannabis plants. I have found indoors it seems to like dry and cold conditions. It seems most (cannabis) growers associate it with molds and then assume it likes warm and humid climates.
As many cannabis growers grow from clones almost exclusively, it's appears as if the pm is never gone entirely. I have heard many call it cannabis AIDS for this reason.
The only way I know to keep it at bay is through climate controls. I have recently been hearing talk of specialized air purifier products that can be bought. I am sure this is possible but I would imagine the grow room would have to be almost as sterile as a surgical operating room.
I have seen milk work extremely well to destroy visible pm on the leaves. It is not very effective as preventative though.
I can't possibly convey to you how frustrating pm is in indoor cannabis growing! I'm definitely going to try some things mentioned in this video.
Thanks again for the valuable information!
Unfortunately we can’t be using milk on indoor plants. I never had a problem with PM indoors until just recently and within a couple weeks my entire facility was infected. I can’t find a way of getting rid of it short of emptying my entire facility for a week and getting clean plants, which is economically impossible.
Never did I ever think I would be spraying my plants with milk... lol
Haha always a time and place
god, i hate this stuff...!!! got if on my Cannabis plant initially, then my roses and now my sweet peas leaves.... thanks for the great info... seems like it gets worse every year now.. grrrrrrrrrr
oh no! it will. just make sure to sterilize the potting soil, mulch and compost
your cat is a cat-alyst for mischief :D
How about using left over whey from making Greek yogurt?
Robert Drake I don’t see why it wouldn’t work the only concern would be getting it runny enough to be able to spray it on the leaves
@@GardeningInCanada just tried it, I'll let you know how it goes
Robert Drake please do!
@@GardeningInCanada oh, it sort of worked but was too late. Did get a decent crop anyway.
That’s awesome!
Good informations about what is PM. As for cure and prevention, it's a bit light for a scientific video. Nothing on fongicides, beneficial bacterias/fungi (like bacillus subtilis), high pH etc.. A lot of informations out there and I was hoping for someone to separate bro science from actual science, without having to read all those studies that might be a little hard for non-specialists. Also with milk, there's quitte a few differents answers, some says it's better to use whole milk, some says light milk, some says you have to apply it during sunny day, some says the bacterias in milk needs dark time (evening) to spread.. Also, I was wondering if you can monitor PM with a microscope for example? So you can see if it's still there before it's showing to the naked eye. Sorry about my English :)
Unrelated: after all the saturating storms we've had here, mushrooms are growing in my yard. They are plain white. Are they edible? I don't use lawn pesticides or fertilizer. Just curious. I know you can't answer definitively because you can't see the mushrooms in my yard. Best guess?
Most likely not. Mushrooms are so finicky just because of how subtle changes in the mushroom signifies a different type. It’s so hard to tell. I’m sure there are groups in the area who would know
@@GardeningInCanada Thank you!
I was watching the cat the entire time. May have to watch the video again.
Ahahah yeaaaa good old coal. He actually opened the door to get it 😬
i may as well subscribe
❤
So I'll be a good bloke and not send my mildewed clippings to county compost. My neighbour has a beautimus big steaming pile of compost across the alley. I set up a trebuchet to jettison them straight to his pile. It took a few tries to get the aim sorted. I expected he would have suspected something when my first load landed on his roof.
Fungi (fun guy)…LOL!
Come for the mystery white spots on the leaves, stay for the cat antics.
Bacteria in sour milk works a treat, used this as a preventative food type by mixing with water and feeding the plants ( cucumbers in this instance) and also can use as a spray directly on the leaves and mix with water and drop of detergent as a emulsifier
That seems counterintuitive. I was told not to wet the foliage.🤪
Does milk hurt the soil food web? Or is it safe for soil microbes and fungus?
So, some wonky info here about PM and how to get rid of it... Firstly, as I understand it, it's the humidity change that allows powdery mildew to proliferate and allow its spores to infect a plant's leaves.... And oddly enough though, water will do 2 things, first, it will wash off mold spores, and second and more importantly, it will inactivate mold spores and make them unable to infect a plant..
Which is why sprays of water will work to curb your PM infestation and why you were able to sometimes stop PM with water daily water sprays.
There are some pesticide products that have been shown to work, including neem, but notably regalia and potassium bicarbonate.
A lot of times with most of these products you are either washing mold spores off OR inactivating/killing the mold via the application of wet droplets to a mold spore.
What really seems to work for active PM is UVc and UVb light, which will kill PM on plants used correctly, there are now products on the market that are aiding with this, but likely overpriced versus a DIY approach using the same lights/bulbs/fixtures.
What about 3% hydrogen peroxide?
Dads don't have a monopoly on Dad Jokes. We women can participate, too.
What about bleach and water?
Watch my video on Whey. That is what you need
Lmao I use that joke too. Hahaha
:)
Pretty sure I just found powdery mildew on my indoor rosemary! Blah.
Sorry to hear that
is not powdery mildew a plant nutrition problem? i would expect that is what soil science tells us, not a discussion of the fungal disease or even just aphids. i really find this strange.. blessings
it has nothing to do with plant nutrition... and my minor is in plant science.. so maybe spend more time on the channel before you pass judgement
@@GardeningInCanadawould you say aphids have nothing to do with plant nutrition? i pass judgement on this very fundamental statement. even when your major is plant science, even if you get a phd on it. nowadays i do not get powdery mildew ever in my garden even in the worse of times while neighbors struggle with it. and i am a lawyer. blessings
Please get to the point earlier !!!!
Thank you so much for the informative video. You're amazing and I'm in 🥰 lol
The cat cameo! 🤣 I have my own sweet, adorable plant destroyer.
I watched the cat too much!
Coal apologizes lol he knows he’s a pain
What about hydrogenperoxide?
Great question! And I have heard of this method working but it tends to depend on how severe the infection is. So try it out and then monitor to see if you’re seeing an stalls or increases in infection.
Thank you very much for providing this information. I’m trying again with zucchini this year and it feels good to know I can do something about this aggravating problem which happens every year. I was almost ready to give up on zucchini. Thankyou, thankyou!
Nice! Zucchini is very rewarding
Absolutely perfect and thank you for your in-depth analysis 🎉❤🤗🙏🙏🙏
Very informative video. I have been battling this all summer on my plants. I have tried different products to remove with no luck Southen AG Garden Friendly Fungicide, and Trifecta Crop Control. I am waiting on the next product to arrive Biota Max which has a blend of Trichoderma and Bacillus..fingers crossed. I have also heard that milk can help but have never tried it personally as well...
I highly recommend a copper based solution to solve your powdery mildew infestation. It works very well, and it's OMRI too (organic).
What's screwy about PM is that there are hundreds of species, and they act differently on different hosts in different conditions. I hate PM!
I’m going to try whey powder because i have to cover the entire plants (young haskap berry plants that weren’t very heathy to start -from a grocery store garden centre). i have heard horsetail Tea foliar spray is a preventive.
I wasn't entirely clear, but I believe you were suggesting to water in the evening, to keep the moisture around the plant leaves. Since I have traditionally done this, despite most gardening advice, I don't believe it will reduce powdery mildew. I get powdery mildew every year, and it essentially stops the zuchinni and squash production. i have had good experience with the milk as a foliar spray (I have heard various dilutions from 10-40%), but I just learned this year, that it should be done in hot sun, otherwise the milk proteins won't seal onto the plant leaf suffocating the mildew. I suspect the mildew must overwinter in the soil, as I NEVER compost those plants, allways take them off the property, and I still have the issue. I have never tried the alcohol, so I think that will be worth a try, especially for the ones in more shady area. Thanks for the info.
I couldn't find this level of detailed information anywhere else, THANK YOU! The milk method works fantastically for me-- my milk to water ratio is 4 to 6, and I spray it on at noon when the sunlight is strongest.
So glad to find this channel, thank you so much for sharing your knowledge. I’ve just subscribed. I plan to check out your other videos. We’ve just moved from a zone 7 to a zone 3. So much to learn. Thank you. :)
I’m glad you find it helpful!
Wettable micronized sulfur
4 parts milk to 6 parts water.
Crap, I will have almost no leaves left
Crap, I will have almost no leaves left
Hydrogen Peroxide?
my pickling cukes keep molding from the flower tip down when they are about a inch long. Is that Pow Mildew?
this maybe a bacterial issue actually. my Zukes are having the same issue
@@GardeningInCanada I pulled my 3 zuke plants from my greenhouse. they were just rotting after about 3 to 4 inch long. frumpy face emogi....
My cats just as crazy. Just a thought, maybe you could do a video on plants that are toxic to cats or dogs. I have 2 cats and I’ve read that you should very careful not to let them near kalinchoe or lilys or dahlias and a few other plants I have in the garden. Is this something that’s overstated or should I be washing my hands and clothes after touching these plants and petting my cats? Thanks for the great content!
Great idea! Yea absolutely!
So it’s a cucumber beetle that spreads it on cucumbers. I have also besides h2o2 and water some recommended diluted milk, but it smells! Again because it’s alkaline they say these work, true?
Yea the milk trick does work. And it’s due to the alkalinity
I am using milk it is keeping pm under control am this time.
Yea and they say it works pretty well!
⭐️⭐️⭐️⭐️⭐️⭐️
It’s just getting started on my melons and I watched some videos and settled on using copper fungicide, but came to your video to see the science. You didn’t mention it at all, would it work also?
Yup! It will work. Try to manually remove the bad leaves first
thank you so much Ashley..... I just noticed the beginnings of powdery mildew today :(
😬 blah lol always that aorst
I used baking soda in five gallon bucket 1 time and white mold stopped
Nice!
I love how many times you’ve decided to leave this comment ☺️ all the name calling & such is truly so nice & a great way to start off 2021! Great job you must be a really nice person. FUN FACT: all these comments are going to help my channel greatly in the algorithm positive or negative they do wonders, thank you!
@Fester Adams no not at all I’m just trying to reply to every single comment you leave because it helps my channel in the algorithm 🤗 keep them coming I honestly don’t mind at all
@Fester Adams I’m not lying did you watch any of the video or the scientific journals I cited? Or just enjoy name calling?
@Fester Adams 😂 um I’m pretty sure you’re the one looking a little silly not me... and yes I do enjoy growing my channel especially when I know it’s going to irritate people such as yourself. However! Normal people who want to bring a new concept to the table generally say “hey, have you heard of UV lights for powdery mildew? I’ve read up lots on it and think it’s possibly a better alternative” or “I use UV light for powdery mildew & it works great! You should do a video on it some of your subscribers may find it helpful”. Instead you kind of went a bit wild
Sharing is caring 😊😂 hit the like 👍
You're the best!
Comfrey, cabbage and weed fermented fertilizer usually works great to hold off powdery mildew off my squash plants to a point
When we get our first mild frost they are done anyway
Im going to try and cover mine up in the fall im hoping to extend the season for a few :)
That’s an awesome idea. Never grown comfrey is it worth it?
@@GardeningInCanada for fertilizer i would say yes...it smells as a fermented brew...i just fertilized all my flowering and fruiting plants with it
Ive used it for about 3 or 4 years now and don't have to use chem fertilizers at all
And in my opinion it works well as good or better than miracle grow
It also feeds the good microbes
But i put it on before a good rain so it will wash off
I don't water leafy plants cuz they will get a flower boost lol and we don't want that
You can also use comfrey as a chop and drop
Some people say some varieties spread more than others but i don't spread the seed part around and it dosnt spread
But it takes up s meter squared fully grown after a few years
Interesting! I’ll have to look into that
@@GardeningInCanada yes lots of great information out there on it...its fermented with molasses as the sugar... and i put it in a white plastic jug to keep the light out and the lid on burb it everyday
Same science as compost tea in a way you would use a bubbler
But with fermenting you just keep the air out with a lid and burping it to let the co2 out i believe thats the gass that collectes in ferments
It is haunting my schefflera. I've been trying to clean it off and remove the dead leaves and spray thoroughly with Neem oil, but it keeps coming back. Part of it might be that I didnt take care to make sure the fallen leaves were all removed because they fall in awkward ways in the branches. I don't want to prune much because she'll be bald. It's tough with houseplants, yknow? If I can't get it to go away, I'm gonna buy a little carton of whole milk (I don't have it on hand because I'm lactose intolerant - especially bad with whole milk) and like put it on cotton balls and rub every leaf and stem and branch. I swear!
Thanks for the video, I have powdery mildew in my yucca plant, I tried 3 teaspoon baking soda +2 teaspoon liquid soap +1 teaspoon vegetable oil in 500 cc water, sprayed the plant 3 times within a wk, it is hard to tell if there is response or not so I will try the milk.
It should be pretty immediate. Is it still spreading or stalled in how it’s spreading?
@@GardeningInCanada the same.
Then you may have stalled it. Try the milk and see if that eliminates it
A couple of thoughts from a newbie lazy gardener: setting up the garden to prevent growth: if the ideal situation for powdery mildew is dry soil + humidity around the leaves, could a good deep mulch approach coupled with vertical growth and pruning help by keeping the soil moist and keeping the leaves dryer?
I've also seen a video of a permaculture gardener who uses hydrogen peroxide, thinned in water, on his susceptible plants to very good effect. Since H2O2 can be effective in killing fungus and molds, could it also be effective as a treatment for early signs before too much of the leaf gets damaged?
It's all over my pumpkins :(
Yea 100% mulch and trellis plants will help a lot!
I agree with you. Pruning and growing vertically will be my goal next year for every form of squash and cucumbers. If it crawls, it'll crawl up here.
so once treated is it gone, or will it still be there in future generations like if youre taking clones of a plant, is there ways to get rid of it from a plant or will it only ever be treatable once its on a plant
It can transfer with clones and the best prevention is a foliar spray once ever month for example before you notice the issue.
@@GardeningInCanada ive already noticed it in my garden, thats why i ask, was trying to figure out if i would be able to save the genetics or if i should start new, id like to save them if possible, but if theyre done, theeeen, theyre done lol, thankyou for responding
We’ll see if foliar treatments & leaf removal help at all first
I had it on my house plant Pellionia repens common name Watermelon Begonia. I looked at the leave under the microscope and could see the hyphae so I knew it was a fungus then I thought could it be powdery mildew? So that is how I found your channel.
I was looking for the answer of compostin and i knew you are going to give it but i had to watch the all 😂 well played miss😋
I usually cut the really bad leaves off and put them in the sun. Don’t know if I can compost it?
Powder mildew appeared in my raised bed cucumbers, now it appears on other potted plants in garden...Loads of videos later and I ended up on your channel! I have tried every home remedy and I'm still searching before I rip the plants up!
Well I’m glad you decided to join us!
@@GardeningInCanada as an educator in Massachusetts, I appreciate the science behind things.
Kimberly Monsini thank you so much! That’s so nice of you I’m always unsure as to who likes or dislikes the science view
@@GardeningInCanadaIt is my belief that knowing the science behind a topic, allows me to understand causes (or antecedent) and therefore I am able to apply that knowledge in ALL areas of my life!
Keep on teaching! Lessons learned, can be lessons applied!
@@GardeningInCanada im a weed nerd, bring on the science!
Is there a way that we should treat the soil in the fall to kill spores in that remain?
Great video! Can you so something about blight?
Absolutely are you think tomatoes specifically?
@@GardeningInCanada for me it was my cucumbers that got totally devistated this year, but maybe something general? Keep up the great work, I love the scientific rigour you put into gardening
Eliyahu Verzub okay! Perfect I’ll do a video on this!