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Collection & Redistribution of Aphthona spp. for biological control

Collection & Redistribution of Aphthona spp. for biological control of Leafy Spurge (Euphorbia esula). R.D. Richard & H.W. Ziolkowski, USDA-APHIS & Lana King, USDI-NPS.

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Collection & Redistribution of Aphthona spp. for biological control

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  1. Collection & Redistribution of Aphthona spp. for biological control of Leafy Spurge (Euphorbia esula) R.D. Richard & H.W. Ziolkowski, USDA-APHIS & Lana King, USDI-NPS Aphthona spp. were approved for release into the U.S. as Biological Control Agents against Leafy Spurge Euphorbia esula in the late 1980’s. Since that time USDA has imported insects from Canada and Europe and released, and established field populations in 20 U.S. states. Utilization of Aphthona spp. as Biological Control Agents against Leafy Spurge is now common in spurge infested lands. This technology is environmentally sensitive, self sustaining, low cost and can be used as part of Integrated Pest Management (IPM) approach, along with chemical or cultural practices. The series of photos below demonstrate the field collection of Aphthona spp. from established field locations, and the process of redistribution used by USDA to new field release sites. Aphthona cleaning process All Photos USDA-APHIS & BBCF

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