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Spotted cucumber beetle A spotted cucumber beetle eating a leaf. Diabrotica undecimpunctata on goldenrod. 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.
The pupal stage is white and has the basic shape of the adult. Adult rootworms are about .25 inches (6.4 mm) long. Western corn rootworms are yellowish with a black stripe on each wing cover. Northern corn rootworm beetles are solid in color and vary from light tan to pale green. [2]
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 notorious pests of agricultural crops. The larvae of several cucumber beetles are known as corn rootworms.
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 .
The goldspotted oak borer is just 14 miles from the Santa Monica Mountains' 600,000 oak trees and threatens to devastate forests throughout California, harming wildlife and increasing fire risks.
Extreme drought and bark beetles now threaten California's Ancient Bristlecone Pine Forest, home to Methuselah, a 4,853-year-old bristlecone pine.
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