I felt lucky to have the spray last 24 hours before the next rain.
What do commercial growers do in these conditions? BRBR

As long as the spray has time to dry before it rains, it will be effective. If
it rains every day, you should shorten the interval before the next spray.

I would suggest getting a spray guide from your county extension agent. If I
remember correctly, the first three sprays after bloom should be at one week
intervals, then two weeks after thqt.


John C. Schmid