I have made a similar trap by dipping the bottom of the bottle in yellow paint. For the solution I am using medfly liquid proteins and two fertilizers, 21-0-0 and urea. ammonium fumes attract medfly. In my bottles I have in majority medflies, dakus flies for olives and tiny fruit flies. I will add some of your ingredients as well. And by the way do not throw away dissolved insect bodies. Their proteins work as attractants as well. My red figs which fruit until December get infected in their bottom by tiny fruit flies. I am not Shure if its further generations of pollinating wasp.
Good info and thank for sharing . Cheers
I have made a similar trap by dipping the bottom of the bottle in yellow paint. For the solution I am using medfly liquid proteins and two fertilizers, 21-0-0 and urea. ammonium fumes attract medfly. In my bottles I have in majority medflies, dakus flies for olives and tiny fruit flies. I will add some of your ingredients as well. And by the way do not throw away dissolved insect bodies. Their proteins work as attractants as well. My red figs which fruit until December get infected in their bottom by tiny fruit flies. I am not Shure if its further generations of pollinating wasp.
تحية طيبة .