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OMAFRA apple update: Keeping pesticide where you put it in a wet year

Ontario has received an abundance of rain recently. One of the consequences of this is an increased possibility of pesticide residue wash-off as pesticide rainfastness – or ability of a pesticide to withstand rainfall – is put to the test.

Kristy Grigg-McGuffin, horticultural integrated pest management (IPM) specialist with the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA), provides tips on how to gauge the rainfastness of your pesticide application and how to maximize an application’s efficacy when competing with rain. |READ MORE