Rosa from Rockwall, Tx writes
I need to spray my roses for powdery mildew. I live in Texas at it is over 90 degrees in the daytime. The bonide products states not to spray when temperature is over 90 degrees. Could I spray in the evenings when the low temperatures are around 75 degrees?
We do not recommend treating with Bonide Systemic Insect Control during the heat of the day when temperatures are above 90 degrees. Treating when the temperature is 75 degrees will work better.
Answer last updated on: 06/17/2017