Study Shows Leaf Fertilizers to Be Toxic to Stingless Bees

There’s been a lot of focus and scientific study on the population reductions of honey bees and other pollinators. Now researchers may have found another possible cause: fertilizer. A new study from the Federal University of Vicosa in Brazil is likely the first to find that copper sulfate, when used as a leaf fertilizer, is lethal to the native Brazilian bee known as Friesella schrottkyi. By Andrew Porterfield

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