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Purple Loosestrife Bioagents

         
  Photo of Galerucella pusilla  

Galerucella pusilla/G. calmariensis

  Photo of Galerucella calmariensis              
             

Adults and larvae feed on the leaves and buds of purple loosestrife. Feeding on the leaves defoliates the plants so completely that they are often killed. The resulting seed reduction is especially important as a single plant can produce two million seeds.

 

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