Cerotoma trifurcata (also known as the bean leaf beetle)[1] is a species of beetle in the Chrysomelidae family that can be found in the Eastern and West United States.[2]
Previously considered a minor pest, the past 30 years have seen an increase in population abundance.[3] It has spread from its native region of the Mississippi Delta into the American Midwest and Canada. C. trifurcata prefers soybeans as a host, but it has been found on alfalfa, cowpea, snap beans, and cucurbits. It damages crops due to pod damage and being a vector for bean pod mottle virus. [3]
The beetle exhibits overwintering behaviors. Overwintering is associated with mating behavior and regulates when the beetle lays its eggs.[4]
^Common name
^Distribution
^ abBerzitis, Emily A.; Minigan, Jordan N.; Hallett, Rebecca H.; Newman, Jonathan A. (September 2014). "Climate and host plant availability impact the future distribution of the bean leaf beetle ( Cerotoma trifurcata )". Global Change Biology. 20 (9): 2778–2792. Bibcode:2014GCBio..20.2778B. doi:10.1111/gcb.12557. PMID 24616016.
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