Colorado potato beetle

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Colorado potato beetle:

see potato beetlepotato beetle,
name for two beetles of the leaf beetle family and for two of the blister beetle family, all destructive to the potato plant and its relatives. Most notorious is the Colorado potato beetle, or potato bug (Leptinotarsa decemlineata
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Colorado Potato Beetle

 

(Leptinotarsa decemlineata), an insect of the family Chrysomelidae, a dangerous quarantine pest of potatoes and other Solanaceae crops. The body is 9–11 mm long, oval, and yellow; each elytron has five black stripes; the wings are bright pink; the pronotum has black spots, of which the central one is V-shaped. The shiny light orange egg is oval and 2.4 mm long. The brick-red larva may reach 15 mm in length and has two black points along the sides of each segment except the first thoracic.

The Colorado potato beetle is native to North America. In Europe it first appeared in France in 1922 and subsequently spread to almost all countries. In the USSR it is distributed in Byelorussia, Latvia, Lithuania, Moldavia, the Ukraine, and the RSFSR. There are one or two generations a year. Adult beetles winter in the soil. Most surface in May and June, but some remain in diapause until spring.

The beetles eat leaves. They lay their eggs on the undersides of leaves of potato shoots, in groups of 15–20. A beetle may yield up to 3,000 eggs. Larvae in the first instar chew out the flesh of the leaf from below, and in the second instar, destroy all the flesh, leaving only the thick inner veins. The most voracious are larvae in the fourth instar, which pupate in the soil at the level of the plowed layer. In hot summer weather and in autumn before they hibernate, the beetles are capable of migrations of 40–300 km.

The Colorado potato beetle is an extremely flexible species that can survive various ecological conditions. It represents a particular threat to the USSR, because it can easily acclimatize and reproduce in all the principal regions of potato cultivation. Control measures include quarantine (plant quarantine) and treatment of plants with insecticides and insecticides mixed with micro-biological preparations when the larvae of the second in-star appear and when the beetles are hatching.

REFERENCES

Koloradskiizhuk i mery bor’bysnim, collections 1–2. Moscow, 1955–58. Iakovlev, B. V. Koloradskii kartofel’nyi zhuk. Riga, 1960.
Ekologiia ifiziologiia diapauzy koloradskogo zhuka: Sb. Moscow, 1966.

B. V. IAKOVLEV

References in periodicals archive ?
(2002) (S)-3,7-Dimethyl-2-oxo-6-octene-1,3-diol: an aggregation pheromone of the Colorado potato beetle, Leptinotarsa decemlineata (Say).
Algunos se han modificado y transferido para el control de larvas de insectos plagas como cry1A para el gusano rosado de la capsula del algodonero (Pectiniphora gossypiella) (Wilson et al., 1992), cry3A para el escarabajo colorado de la papa (Leptinotarsa decemlineata) (Perlak et al., 1993), cry1Ab para el barrenador europeo del maiz (Ostrinia nubilalis) (Koziel et al., 1993), cry1Ab en arroz para el barrenador rayado del tallo (Chilo suppressalis) y el plegador foliar (Cnaphalocrosis medinalis) (Fujimoto et al., 1993), cry1Ab para el gusano cachon (Manduca sexta) del tomate (Fischhoff et al., 1987) y cry1Ab para el barrenador del tallo de la cana de azucar (Diatraea saccharalis) (Arencibia et al., 1997).
Effects of soil fungistasis on Beauveria bassiana and its relationship to disease incidence in colorado potato beetle, Leptinotarsa decemlineata, in Michigan and Rhode Island soils.
Acrobasis vaccinil Heliothis virescens Anthonomus grandis Heliothis zea Agrotis segetum Hyphantria cunea Anarsia lineatella Leptinotarsa decemlineata Artogeia rapae Lymantria dispar Agrotis segetum Mamestra brassiacae Autographa califomica Malacosoma americanum Bombix morf Manduca sexta Choristoneura fumiferana Ostrinia nubilalis Choristoneura rosaceana Pieris brassicae Chito supresalis Plutella xylostella Chrysoteuchia topiaria Pseudoplusia includens Cofias eurytheme Popillia japonica Chrysomela scripta Rhopobota naevana Ephestia kuehniella Scirpophaga incertulas Epicauta spp.
bassiana induziu injúrias histológicas e citológicas nos ovários de adultos sobreviventes da infecção de larvas de Leptinotarsa decemlineata Say, reduzindo a sua fecundidade, tanto pela interrupção do desenvolvimento folicular quanto pela sua degeneração.
(1999) found, in olfactometer, similar results when eggs of Leptinotarsa decemlineata (Say, 1824) (Col.: Chrysomelidae), hexane washed, continued to attract females of Edovum puttleri Grissel, 1981 (Hym.: Eulophidae).
There were also moulting delays and deformities in Perillus bioculatus when Leptinotarsa decemlineata was treated with NSE (Hough-Goldstein and Keil, 1991).
Work hygiene and the health condition of workers occupied in combating the leptinotarsa decemlineata with HCH and dichloroethane.
maculiven tris and the two-spotted stink bug, Perillus bioculatus (F), were equally effective in feeding on eggs and larvae of the Colorado potato beetle, Leptinotarsa decemlineata (Say).
Potato beetle Animalia Arthropoda Insecta Coleoptera Chrysomelidae Leptinotarsa decemlineata
Antifeedant effect by common rue extracts was also demonstrated for the Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Coccinellidae) 4th instar larvae and adults (Hough-Goldstein 1990), and repellency was shown for the cat flea, Ctenocephalides canis (Siphonaptera: Pulicidae) (Cox 1980).