You use extracts in your *spray? I've never heard of this. What's the recipe?
Just trying it out-
I made coconut oil extract in a crockpot before, and got the idea to add some to my ipm spray as a “soap” (brain not coming up with word I’m looking for…) to help it stick.
I figured the plants create the resin as a protective against disease and pests, so may as well add some back with my ipm.
I heat fresh rosemary in the coconut oil, along with sunflower lecithin. Then, while warm add a good amount to slightly above room temperature water.
It can be a pain because it clogs up if it cools too much, but that also helps it to stick with the plant longer. Smells good, non-toxic, and my plants have never been burned by it, and seem to photosynthesize just fine with it.
Tested on spider-mites on a pepper plant and they were frozen in place, dead.
Also drew a circle around ants on my wall with it and they were extremely hesitant to cross it, and once they did they didn’t come back.
Now my plants are flowering so may just do one more small application, then use citric acid dilution the rest of the season.