Asters' yellows virus
I love all the new Echinacea hybrids but I can't afford loss to the asters yellow virus. It is apparently transmitted by the leaf hopper. I would like to apply something nasty to the plants so that the hopper isn't tempted to sample but not affect the bees. Any suggestions? Thank you.
Sheridan County Wyoming
Try Bayer Tree and Shrub control several different formulations, it is systemic and should not bother bees or beneficial insects.