Yellowish-green spotted cucumber beetles measure about ¼-inch long, with black heads, antennae and legs. They are found east of Rocky Mountains. Adult spotted cucumber beetles overwinter in on piles of trash, compost or garden debris. This ia a Carpet Beetle in the genus Anthrenus, which you may confirm on BugGuide. However, the most important damage by the insect is the transmission of bacterial wilt, which is lethal to the vine. ... Butterfly House. Cucumber beetles are serious pests of smooth-skinned cucurbits, especially melon varieties such as honeydew, crenshaw, and casaba. First, their feeding directly stunts plants and, when flowers are … The spotted cucumber beetle (Diabrotica undecimpunctata) is about one-third inch long, and is bright greenish-yellow with 12 black spots on its wing covers. Damage. Western striped cucumber beetle larvae feed exclusively on cucurbit roots, whereas western spotted cucumber beetle larvae feed on a wide variety of plants including grasses, corn, legumes, and cucurbits. The spotted cucumber beetle is a major agricultural pest insect. Organic Control Measures for Striped Cucumber Beetles In all stages of life, these beetles do damage to cucumbers, winter and summer squash, melons, pumpkins, and gourds. Spotted Cucumber Beetle Their young larva will commonly burrow into the roots of young emerging plants, which destroys the plant. Image of yellow, diabrotica, spotted - 156874122. The grubs chew up the roots of cucumbers, beans, melons, squash, and pumpkins. (Closely related species are found throughout United States). Cucumber beetles are found across the United States from Canada to Mexico and are either striped (Acalymma vittatum) or spotted (Diabrotica undecimpunctata howardi).Both species feed primarily on the leaves, flowers and fruits of cucurbits (cucumbers, squash, pumpkins and melons). The beetle is greenish-yellow and has 12 spots on the wing covers. The larvae of several cucumber beetles are known as corn rootworms. They have 6 large black spots on each elytron – so 12 spots in … The Cucumber beetle is a common pests throughout most of southern Canada east of the Rocky Mountains. Their Life Cycle. Image of yellow - 156874122 ... House and … Adult twelve-spotted cucumber beetle (Coleoptera) Cucumber beetles feed on all cucurbits from seedling emergence to harvest. Despite its neat appearance, the Spotted Cucumber Beetle is a bane to anyone trying to grow food. The Spotted Beetle,also known as the Spotted Cucumber Beetle (Diabrotica undecimpunctata) belongs to the family Chrysomelidae.. The species can … Cucumber beetles spread plant disease and lay waste to a wide variety of cucurbit crops in both home gardens and commercial farms. They are both beetles, true enough, but while the … This is a common household pest that is also responsible for doing major damage to museum collections. Both adults and larvae of this species feed on a variety of food plants commonly grown at home. These crawling insects feed on the leaves of legumes, cucumber, corn, and squash. The adults feed on leaves and blossoms and also vector bacterial wilt. In this article, we will examine the attributes of the cucumber beetle and share advice on keeping them under control in your farm or garden. For identification purposes, Adult are greenish to yellow looking. Black thoraxes (where the wings and legs are attached), yellow abdomens and six black spots on each wing cover complete the look. The adults can be found on cucurbits such as cucumbers and a variety of other plants. In addition to inflicting significant damage by feeding, these beetles add insult to … Diabrotica undecimpunctata howardi (the spotted cucumber beetle or southern corn rootworm) Diabrotica undecimpunctata undecimpunctata (the western spotted cucumber beetle) Diabrotica undecimpunctata tenella (the western cucumber beetle) These are also major agricultural pests and should be destroyed quickly.