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Diabrotica undecimpunctata, the spotted cucumber beetle or southern corn rootworm, is a species of cucumber beetle that is native to North America. The species can be a major agricultural pest insect in North America. Spotted cucumber beetles cause damage to crops in the larval and adult stages of their life cycle.
Diabrotica is a large, widespread genus of beetles in the family Chrysomelidae. Members of this genus include several destructive agricultural pest species , sometimes referred to as cucumber beetles or corn rootworms .
Spotted cucumber beetle, northern corn rootworm beetle, and western corn rootworm beetle Western corn rootworm. Cucumber beetle is a common name given to members of two genera of beetles, Diabrotica and Acalymma, both in the family Chrysomelidae. [1] The adults can be found on cucurbits such as cucumbers and a variety of other plants. Many are ...
Crop rotation is a consistent and economical means of controlling rootworms the season following an outbreak in corn-growing areas where rootworm beetles primarily lay eggs in corn. As a way to reduce rootworm densities, it is more effective than insecticides. [2] Corn rootworm larvae must feed on corn roots to develop and mature properly.
The southern corn leaf beetle (Myochrous denticollis) is a crop pest, and has been reported to damage corn in Illinois. [5] Additionally, the species Myochrous melancholicus has been reported to damage banana fruit. [6] According to BugGuide and ITIS, the genus is now placed in the tribe Eumolpini instead of Adoxini. [1] [2]
Southern corn leaf beetles overwinter as adults beneath the soil and plant debris and in clumps of some species of weeds. The adults emerge again in early spring, to feed on young weed hosts such as cocklebur , smartweed , and crabgrass as well as early-planted corn.
Insect mouthparts - Wikipedia
Diabrotica virgifera is a species of beetle in the family Chrysomelidae. It is an agricultural pest species that attacks maize. [1] It includes two subspecies, Diabrotica virgifera virgifera (the western corn rootworm) and Diabrotica virgifera zeae (the Mexican corn rootworm). [2] Diabrotica virgifera virgifera.