Many insecticides and fungicides may leave a spray residue. This photo shows a little residue from the fungicide Decree which was applied for Botrytis during a prolonged period of cool, overcast and rainy weather.
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Many insecticides and fungicides may leave a spray residue. This photo shows a little residue from the fungicide Decree which was applied for Botrytis during a prolonged period of cool, overcast and rainy weather.