Ladybugs in Greenhouse / Home
I have a two part post that has ladybugs as the common subjects.
First, I work at a greenhouse with grapevines and they are infested with vine mealybugs. I have been trying to get rid of with cotton swabs and alcohol. It is possible to spray them with chemical to try to kill them but I'm afraid it won't be effective. We have sulfur burners that emit sulfur dioxide to kill certain pests but they don't kill mealybugs. Will the ladybugs survive the sulfur dioxide? I don't want to kill ladybugs willy nilly.
Second, I have a butterfly bush in my house that is infected with an orange aphid and I'm trying to look for ladybugs to kill them off. I usually see them in my rose or chards around may. But I don't seem to find them now. Where can I find some? Can do anything to try to attract them? I don't put chemicals to my plants and I have a pretty good selection of natives. My roses and the butterfly bush have mealybugs. I don't know what else to do that would bring them back.