Quote:
Originally Posted by b54red
Using the amount of DE that I use it is quite easy to see the DE on the plants after they dry with the naked eye. They take on a ghostly whitish hue. It will remain on the plants until washed off by heavy wind and rain. Maybe I am using even more DE than I say because I don't measure it very carefully. I use a powerful backpack sprayer that can spray a fairly heavy concentration without getting stopped up and walking with it causes constant shaking along with some extra tilting by me to keep the DE in solution.
Bill
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I didn't use as much DE as you do, but like the song says "It never rains in Southern California." I plan on a followup spray next week, so that will double up the layer of DE. It is likely that we won't get any rain until October or November.