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Insects Feeding
on this Plant:

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Sonchus arvensis
(Perennial Sowthistle) [Asteraceae]
(Observations are from Wyoming Agr. Exp. Sta., Hottes & Frison, Charlet & Gavloski)

Coleoptera (Beetles)
Curculionidae: Cylindrocopturus adspersus (Sunflower Stem Weevil) [adults feed on leaves & stems, larvae bore through stems & root crown] CG2011

Homoptera (Sucking Insects)
Aphididae: Hyperomyzus lactucae HF1931

Orthoptera (Grasshoppers)

Acrididae: Melanoplus bivittatus (Two-Striped Grasshopper) Wy1994
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