I'm trying to find out how to beat the aphids on my Monarch attracting plant, cant remember the name, I've tried the hosing off and it just doesn't work. I just can't stay ahead of them.
Certified GKH Gardening Expert
My suggestion would be to use neem oil. This should be applied OUT of direct sunlight to avoid burning, though. Here is a collection of articles for more information on making your own pesticides, and other helpful articles: https://www.gardeningknowhow.com/special/organic/