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larose forest photos | all galleries >> INSECTS (INSECTA) >> Beetles (Coleoptera) (35 Galleries) >> Broad-bodied Leaf Beetles (Family: Chrysomelidae, Subfamily: Chrysomelinae) > Bio-control at work: Klamath weed beetles (Chrysolina sp.) on Klamath weed
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Bio-control at work:  Klamath weed beetles (<em>Chrysolina</em> sp.) on Klamath weed
29-JUN-2009 Christine Hanrahan

Bio-control at work: Klamath weed beetles (Chrysolina sp.) on Klamath weed

Klamath weed is also known as St. John's wort (Hypericum perforatum). These beetles were introduced to control this fast-spreading invasive which is considered a noxious weed in agricultural areas (although it is also used by herbalists for treatment of depression and possibly other things). As you can see, the bio-control is working.

Canon PowerShot SX10 IS
1/320s f/4.0 at 5.0mm iso100 full exif

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Don03-Nov-2013 20:35
The plant has no hope against that army!
Len03-Jul-2009 02:29
Excellent macro shot-& very informative.~V~
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