Store-bought milkweed plants can expose monarch caterpillars to harmful pesticides
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Store-bought milkweed plants can expose monarch caterpillars to harmful pesticides
Milkweed plants purchased at retail nurseries across the United States were contaminated with pesticides harmful to monarch caterpillars that rely on milkweed, a study led by researchers at the University of Nevada, Reno found. Every plant sampled was contaminated, even those that were labeled friendly to wildlife.
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