More on fungicide (re)application timing topic

I posted general "rule of thumb" about application (or re-application) earlier this season.  Dr. Annemiek Schilder at Michigan State University recently published a very nice write up about it.

She answers many of questions we have in our mind, when the fungicide residues to be washed off from the rain, efficacy of spreader-stickers, and systemic fungicides.  Please check it out.

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