We deal with serious fungal problems in our new garden (zone 5a, dry and hot summer, wet and mild winter). Rusts of many types are the main threat. So P. strobus and such are out of the question. Through trial and error, I found that dusting the soil with powdered elemental sulfur twice a year before applying a new layer of mulch works more efficiently for us than any commercial fungicide. Research papers I found online say that sulfur is highly toxic to many fungal pathogens except for the oomycete, Phytophthora, or to bacteria. It also slowly and evenly acidifies soil, which is a big plus for us.
@@moseseisley557 I'm located in the European part of Russia. Pinus sylvestris and banksiana seem to be unkillable here; mugo very rarely suffers from pests; parviflora, thunbergii, and ponderosa are doing fine; peuce is said to be unaffected by rust, but the reality is that rust attacks it much less often than it does strobus; flexilis and aristata are not very common, so there is not too much first-hand info on them; heldreichii and nigra are not very stable and seem to be susceptible to various fungal diseases; wallichiana, densiflora, and strobus are the least reliable in our area - they die in most cases, sometimes after the first winter, sometimes after 10 years.
It seems that some conifer trees do have trouble with the 'jojo' weather we've seen in western countries. Drought, followed by intense rain and storm... they seem to have trouble with this, although I do think drought is the main issue. I've seen this with several chamaecyparis lawsonia species. No problems yet with my only thuja occidentalis, but other ones in the area did have problems years ago, when we've had to deal with drought. Weather conditions in Europe, are wet so far this year - besides some weeks in may -. I don't think fungus is the main issue here, or heavy rain was followed by severe drought. In that case you get two extreme conditions in to short time. By the way, I forgot the question about the larch. If I recall, you had a question? ~Marjet
@@margroningen In the eastern US chamaecyparis lawsoniana has a reputation for problems with blight... I will not even try to grow that species here. My question was about juniperus virginiana...Do they grow that tree in your area?
@@moseseisley557 The only common juniperus that grows in nature over here is juniperus communis. However, I've seen juniperus virginiana in botanical gardens. Also, Chinese juniper species are common, being planted in gardens of citizens. Blight is a problem with chamaecyparis, I agree.
@@moseseisley557 Very informing to hear :) Ironically, the juniper (native) here is very rarely spreading seedlings. It's so difficult to maintain their population, so that nature conservationists dedicate certain areas to preserve the species. I've seen such an area in the southern part of my country, last year. It was surrounded by huge Scot's pine treas, oaks and Douglas firs. Just fantastic trees.
hello, it could be a terrible pest of the genus Tuia, juniperus, chamaecyparis, but especially in thuja, namely "Ovalisia festiva" and I have big problems with thuia occidentalis with this pest.
@@iancuavram4283 You could be correct! However, please watch this video and tell me your opinion: ruclips.net/video/I48dT1897gw/видео.htmlsi=Lv1f9bRYeVKMGeAY
@@moseseisley557if "Armillaria" grows from thuja wood it is infected, but if Armillaria grows next to the stem without contact with the wood, it may not be an Armillaria infection, you had to take the Armillaria bush to see if they came out directly from the thuja wood.
@@iancuavram4283 Correct! When i was removing the infected tree i found the white mycelium between the bark and the wood. The tree was definitely infected.
Hey not video topic but i havea question How is your giant sequoia doing? I got mine in pots because i cant plant them in ground yet for at least 3-4 more years. They are about 5-6 years old my guess (about hip high). They survived 1 winter but they got yellowed and browned. I fixed the issue with conifer fertilizer and amino acids that brought back the color and made the tree grow kinda a lot, Browning has stopped and i removed most of it (very little browning appeared and its mostly in the inside of the branches rather than outside so i guess thats normal. My question would be how do you care for yours and do you got any tips for taking care of mine beside adding slow release fertilizer every few months and ocassional amino acids spray? Did my trees go yellow due to cold or something else? Any info can help since not a lot of us are taking care of such wonderful trees Mine look happy now but i want them thriving
@@emelgiefro Great questions! Without knowing where in the world you are growing these it is a hard to give the best advice, but i will tell you what happened to mine: 1) I planted mine in the ground in the fall and you should plant yours this fall when the weather begins to cool. 2) I was growing them in Tennessee where there are hot humid summers. This caused the sequoias to become infected with fungus, because in their native habitat the summers are cool and dry. 3) Cercospora blight starts with browning of lower needles during the summer even though the tree has enough water. Each year the browning becomes worse until the tree dies. 4) It is very difficult to grow sequoias in humid subtropical and humid continental climates.
@@moseseisley557 i live in central/southern europe (continental croatia) Summer climate here is kinda moist but sequoias i saw are in good health. (Winters also dont go below -20°C and summers are 30-37°C but i live in an area that has trees so its always cooler) I heard they like fog and moisture tho since they drink water from fog also when they get huge They do amazingly well in england from what i saw and that country is moist all the time. I understand that the tree cant be planted in a swampish area but thank you for mentioning moisture can lead to fungus killing it Im lucky mine arent infected and are looking happy My plan is getting a property with a slope where water can run off and not sit. Main issue for me is clay soil in this part of europe that isnt really nutritional but well i can add fertilizers Bonus is that at least clay holds moisture so trees should not die due to lack of water. When im able ill send you the name of conifer fertilizer i have and the amino acid thing i spray on them sometimes. Also do you know anything about the fungus and how to stop it if it ever comes to that? Thank you and have a wonderful day
@@emelgiefro The climate in croatia (inland, not coastal) is pretty close to Tennessee in the USA. Also, the soils are similar too. We have clay soil over limestone bedrock, and the soil here is usually alkaline in my part of the state. For reference, Tennessee is about double the size of croatia, so there are a wide variety of soil types here. The most likely blight on my sequoia was cercospora, but it could have been phomopsis or kabatina as well.
@@moseseisley557 ill do my best to find a place for them somewhere. We got some pretty big ones in parks here so ill try and look what they do to keep them happy. Thank you for the info
Cedrus deodora is very hardy, although some here in Europe are being sold as cedrus libani var. glauca, It suggests is a libanon cedar, which means they could be less hardy.
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We deal with serious fungal problems in our new garden (zone 5a, dry and hot summer, wet and mild winter). Rusts of many types are the main threat. So P. strobus and such are out of the question. Through trial and error, I found that dusting the soil with powdered elemental sulfur twice a year before applying a new layer of mulch works more efficiently for us than any commercial fungicide. Research papers I found online say that sulfur is highly toxic to many fungal pathogens except for the oomycete, Phytophthora, or to bacteria. It also slowly and evenly acidifies soil, which is a big plus for us.
@@marau6542 Interesting! What part of the world are you growing trees in?
@@moseseisley557 I'm located in the European part of Russia. Pinus sylvestris and banksiana seem to be unkillable here; mugo very rarely suffers from pests; parviflora, thunbergii, and ponderosa are doing fine; peuce is said to be unaffected by rust, but the reality is that rust attacks it much less often than it does strobus; flexilis and aristata are not very common, so there is not too much first-hand info on them; heldreichii and nigra are not very stable and seem to be susceptible to various fungal diseases; wallichiana, densiflora, and strobus are the least reliable in our area - they die in most cases, sometimes after the first winter, sometimes after 10 years.
congratulations once again for your dendrological park, if you want I can send you some pictures or a video of my dendrological park in Romania,
It seems that some conifer trees do have trouble with the 'jojo' weather we've seen in western countries. Drought, followed by intense rain and storm... they seem to have trouble with this, although I do think drought is the main issue. I've seen this with several chamaecyparis lawsonia species. No problems yet with my only thuja occidentalis, but other ones in the area did have problems years ago, when we've had to deal with drought. Weather conditions in Europe, are wet so far this year - besides some weeks in may -. I don't think fungus is the main issue here, or heavy rain was followed by severe drought. In that case you get two extreme conditions in to short time. By the way, I forgot the question about the larch. If I recall, you had a question? ~Marjet
@@margroningen In the eastern US chamaecyparis lawsoniana has a reputation for problems with blight... I will not even try to grow that species here.
My question was about juniperus virginiana...Do they grow that tree in your area?
@@moseseisley557 The only common juniperus that grows in nature over here is juniperus communis. However, I've seen juniperus virginiana in botanical gardens. Also, Chinese juniper species are common, being planted in gardens of citizens. Blight is a problem with chamaecyparis, I agree.
@@margroningen Interesting! Juniperus virginiana is like a weed here that grows wherever there is disturbed soil. The seeds are spread by birds.
@@moseseisley557 Very informing to hear :) Ironically, the juniper (native) here is very rarely spreading seedlings. It's so difficult to maintain their population, so that nature conservationists dedicate certain areas to preserve the species. I've seen such an area in the southern part of my country, last year. It was surrounded by huge Scot's pine treas, oaks and Douglas firs. Just fantastic trees.
hello, it could be a terrible pest of the genus Tuia, juniperus, chamaecyparis, but especially in thuja, namely "Ovalisia festiva" and I have big problems with thuia occidentalis with this pest.
@@iancuavram4283 You could be correct! However, please watch this video and tell me your opinion:
ruclips.net/video/I48dT1897gw/видео.htmlsi=Lv1f9bRYeVKMGeAY
@@moseseisley557if "Armillaria" grows from thuja wood it is infected, but if Armillaria grows next to the stem without contact with the wood, it may not be an Armillaria infection, you had to take the Armillaria bush to see if they came out directly from the thuja wood.
@@iancuavram4283 Correct! When i was removing the infected tree i found the white mycelium between the bark and the wood. The tree was definitely infected.
Hey not video topic but i havea question
How is your giant sequoia doing?
I got mine in pots because i cant plant them in ground yet for at least 3-4 more years.
They are about 5-6 years old my guess (about hip high).
They survived 1 winter but they got yellowed and browned.
I fixed the issue with conifer fertilizer and amino acids that brought back the color and made the tree grow kinda a lot,
Browning has stopped and i removed most of it (very little browning appeared and its mostly in the inside of the branches rather than outside so i guess thats normal.
My question would be how do you care for yours and do you got any tips for taking care of mine beside adding slow release fertilizer every few months and ocassional amino acids spray?
Did my trees go yellow due to cold or something else?
Any info can help since not a lot of us are taking care of such wonderful trees
Mine look happy now but i want them thriving
@@emelgiefro Great questions! Without knowing where in the world you are growing these it is a hard to give the best advice, but i will tell you what happened to mine:
1) I planted mine in the ground in the fall and you should plant yours this fall when the weather begins to cool.
2) I was growing them in Tennessee where there are hot humid summers. This caused the sequoias to become infected with fungus, because in their native habitat the summers are cool and dry.
3) Cercospora blight starts with browning of lower needles during the summer even though the tree has enough water. Each year the browning becomes worse until the tree dies.
4) It is very difficult to grow sequoias in humid subtropical and humid continental climates.
@@moseseisley557 i live in central/southern europe (continental croatia)
Summer climate here is kinda moist but sequoias i saw are in good health. (Winters also dont go below -20°C and summers are 30-37°C but i live in an area that has trees so its always cooler)
I heard they like fog and moisture tho since they drink water from fog also when they get huge
They do amazingly well in england from what i saw and that country is moist all the time.
I understand that the tree cant be planted in a swampish area but thank you for mentioning moisture can lead to fungus killing it
Im lucky mine arent infected and are looking happy
My plan is getting a property with a slope where water can run off and not sit. Main issue for me is clay soil in this part of europe that isnt really nutritional but well i can add fertilizers
Bonus is that at least clay holds moisture so trees should not die due to lack of water.
When im able ill send you the name of conifer fertilizer i have and the amino acid thing i spray on them sometimes.
Also do you know anything about the fungus and how to stop it if it ever comes to that?
Thank you and have a wonderful day
@@emelgiefro The climate in croatia (inland, not coastal) is pretty close to Tennessee in the USA. Also, the soils are similar too. We have clay soil over limestone bedrock, and the soil here is usually alkaline in my part of the state. For reference, Tennessee is about double the size of croatia, so there are a wide variety of soil types here. The most likely blight on my sequoia was cercospora, but it could have been phomopsis or kabatina as well.
@@moseseisley557 ill do my best to find a place for them somewhere. We got some pretty big ones in parks here so ill try and look what they do to keep them happy.
Thank you for the info
I have a small cedrus deodora ( deodar cedar) . Do you know if it's hardy in zone 8a?
Cedrus deodora is very hardy, although some here in Europe are being sold as cedrus libani var. glauca, It suggests is a libanon cedar, which means they could be less hardy.
@@The_Mothzz Cedrus deodara and cedrus libani are both cold hardy in zone 8a.
@@moseseisley557 thank you
Also, can you tell what camera do you use for your videos?
@@The_Mothzz Samsung S21 phone :)
@@moseseisley557 thank you