woolly aphids control
There is a lot of these guys all around my garden. Stems are covered with this white stuff, especially areas under flowers - roses, echinaceas, lilies, etc. When you touch it - small white bugs jump out of it. So, I think they are woolly aphids.
Is there an organic way to get rid of them, or at least decrease/stop their population? If not, what are the best chemicals to treat the garden with? And prevention: what to do in a future?