Some growers had difficulty keeping whiteflies under control on their poinsettia crop last fall. This is most likely because of high levels of resistance to pyrethroid and nicotinoid insecticides, including some products that we have used extensively in previous years like imidacloprid. Here are some tips from Michigan State University Extension to help manage whiteflies in fall 2013.
Click here for the tips
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US: MSU's Whitefly management on poinsettia for fall 2013 now available
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