The only complaint was from growers who only put up one layer of netting. The plants were tall, and with two layers of netting, we ended up with the straightest plants. Bugs Generally asters keep entomologists and pathologists employed. This just did not happen in our Maryland trials this year. Score one for the aster growers.
Merit works well on sucking insects.
Unfortunately for me, there was no difference between the treated plants and the control plants. Neither had problems with leaf hoppers. Rust did rear its ugly head in September when humidity levels rose. It was hot and dry all summer, but the rains showed up in mid-September bringing the humidity. By this point, the plants had produced flowers for about 40 - 45 days.