potato beetle


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potato beetle,

name for two beetlesbeetle,
common name for insects of the order Coleoptera, which, with more than 300,000 described species, is the largest of the insect orders. Beetles have chewing mouthparts and well-developed antennae.
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 of the leaf beetle family and for two of the blister beetleblister beetle,
common name for certain soft-bodied, usually black or brown, mostly elongate and cylindrical beetles belonging to the family Meloidae. Blister beetles are common insects found feeding on the flowers and foliage of various plants. Occasionally some, e.g.
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 family, all destructive to the potato plant and its relatives. Most notorious is the Colorado potato beetle, or potato bug (Leptinotarsa decemlineata), a black-and-yellow striped member of the leaf beetle family. It was once confined to the Rocky Mts., where it lived on wild members of the nightshade, or potato, family. When settlers introduced the Irish, or white, potato (c.1855), the insect spread through most of the United States and then to Europe. Its orange-yellow eggs are laid in clusters on the undersides of the leaves, on which the reddish, black-spotted larvae feed. Pupation (see insectinsect,
invertebrate animal of the class Insecta of the phylum Arthropoda. Like other arthropods, an insect has a hard outer covering, or exoskeleton, a segmented body, and jointed legs. Adult insects typically have wings and are the only flying invertebrates.
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) takes place on the ground, and the adults emerge to feed on the potato plants; they hibernate underground during the winter. The destruction caused by the Colorado potato beetle has been one of the chief reasons for the development of insecticides; Paris green and other arsenic compounds have been used extensively. A member of the same family is the three-lined potato beetle (Lema trilineata) of the E United States, sometimes called old-fashioned potato beetle. The adults are yellow-orange with black stripes and lay their eggs scattered randomly over potato leaves. Two blister beetles of the genus Epicauta are also known as old-fashioned potato beetles. They are slender insects with complex life histories, passing through several larval stages before pupating. They feed on potatoes, tomatoes, and other members of the nightshade family. One (Epicauta vittata) has orange and black stripes and is also called striped potato beetle, or striped blister beetle; the other (E. marginata) is black with gray margins. The various potato beetles termed "old fashioned" were considered major pests before the spread of the more destructive Colorado potato beetle. Potato beetles are classified in the phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
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, class Insecta, order Coleoptera. The Colorado potato beetle and the three-lined potato beetle are classified in the family Chrysomelidae and the old-fashioned potato beetles (Epicauta) in the family Meloidae.
References in periodicals archive ?
The bio-oil also killed 100% of Colorado potato beetles, a resistant pest that can destroy potato crops.
Comparison of Perillus bioculatus and Podisus maculiventris (Hemiptera: Pentatomidae) as potential control agents of the Colorado potato beetle (Coleoptera: Chrysomelidae).
Dickens is also studying how chemical scents emitted when the beetles chew on plants might help attract potato beetle predators.
Bt corn is protected against European corn borers; Bt cotton targets bollworms and budworms; and Bt potatoes are resistant to Colorado potato beetles.
This particular organic pesticide reduces the esophagus of the Colorado potato beetle to mush.
He has fine-tuned that approach and used barcoding to come up with a way to factor in how quickly different predatory insects actually digest the Colorado potato beetle.
Ladybugs (more than 3,000 species feed on aphids, spider mites and mealy bugs), spined soldier bug (eats Colorado potato beetle and Mexican bean beetle), Minute pirate bug, lacewings, dragonflies, ground beetles, rove beetles and a host of other beneficial species are natural control agents.
Some producers said that because choices for effective pest control in potatoes are limited, farmers may have to resort to older, less-target-specific, and more pervasive chemicals to control the potato beetle.
Field studies were conducted to further evaluate different applications of thermal control in agriculture including: weed control in com, horticultural field crops, apple orchards, turfgrass and golf course fairways; control of Colorado potato beetle (CPB) in potato production; top killing of mature potato plants and of unproductive lowbush blueberry vines.
While consumers may not get too excited over potatoes that can resist the Colorado potato beetle, the scourge of many a spud crop, they are likely to be interested in the potential health benefits associated with many genetically altered products.
Organic fields were treated with azadirachtin [neem extract at 7 oz/acre (512 mL/ ha)] and Bacillus thuringensis subspecies tenebrionsis at 800 L of Bt per hectare, targeting aphids complex and Colorado potato beetle (Leptinotarsa decemlineata Say), respectively.
The Colorado potato beetle displays a black and yellow stripe figure and is extremely destructive.