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Beetles Help Take a Bite Out of One of the Word’s Most Aggressive Weeds

Over the past decade, beetles have taken a major bite out of purple loosestrife, one of the world’s most aggressive weeds. Featured on “the most noxious weeds” list in 33 states, purple loosestrife (Lythrum salicaria) is especially a problem in the Midwest where it clogs wetlands and waterways. In the early 1990s, researchers in Minnesota were among the first to try a biological-based approach for beating back the weed. They released two types of loosestrife beetles (Galerucella calmariensis and Galerucella pusilla) that love to munch on purple loosestrife foliage. more »

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