Pests. Acanthoscelides obtectus Say – Bean Weevil. Object map. Systematic position. Class Insecta, order Coleoptera, family Bruchidae, genus Acanthoscelides. Size: mm. Basic colour: Brown Pattern colour: Darker spots scattered, sometimes paler longitudinal streaks. Number of spots: Numerous small dark spots. Citation: Walker, K. () Bean weevil (Acanthoscelides obtectus) Updated on 1 /25/ AM Available online: PaDIL.

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Pupation also takes place in grain days. Grey-green in colour and about 3 – 5 mm long. Articles with ‘species’ microformats Commons category link is on Wikidata.

bean bruchid (Acanthoscelides obtectus)

The pest arrives in the storehouse with grain where it develops until cold. The pest also migrates to grain fields.

Archived from the original on 3 February New pest of haricot-bean Acanthoscelides obtectus Say in Stavropol’ area. The femur of the hind leg acanthoscelidez three tooth-like spines.

In other projects Wikimedia Commons Wikispecies. The influence of air humidity on bean weevil Acanthoscelides obtectus Say. If you would like to, you can learn more about the cookies we use.

Legs are yellow red and antenna red brown.

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Acanthoscelides obtectus – Wikipedia

White pupa is about 4 mm in length. Larvae have bristles and three pairs of legs. Bean weevils are originally native to Central America, [5] however grain shipments at the end of the 19th century introduced the species to Europe where it subsequently spread around the globe.

From Wikipedia, the free encyclopedia. Several larvae can develop in one grain to The species was described in by Thomas Say.

Biologicheskii zhurnal Armenii 36 8: Oblong egg is white, about 0. Pests of agricultural crops and forest plantations. Control del gorgojo de frejol en almacen.

The eggs develop during days. It was transferred with grain to Europe in the end of Nineteenth century; in the s it was brought to Crimea. acanthosceldies

Cookies on Plantwise Knowledge Bank Like most websites we use cookies. Acanthoscelides obtectus Scientific classification Kingdom: The grub, or larva, is whitish and hairy. Proceedings of Stavropol’ agricultural institute. Proceedings of Georgian plant protection institute, N They are generally considered a pest species for this reason.

Go to distribution map The wing cases are short and mottled brown with the antennae being grey and reddish.

Bean weevils feed on vetchesbeans and other leguminous plants. Larvae and pupae develop entirely within grain legumes.


Sometimes it is observed in the southern part of West Siberia. It has been recorded on a number of other legumes, including cowpeas in Mexico, chickpeas and Voandzeia subterranea, but it seldom attains pest acsnthoscelides on these hosts. The insect produces a sweet, “fruity” pheromone that gives cultures of newly emerged adults a pleasant smell. For further information, we recommend you visit the following resources: Page Through Results Previous 1 2 Next.

Bean weevil

High harming activity is reported in Transcaucasia, Krasnodar Territory, in some regions of Ukraine. Chemical Control Due to the variable regulations around de- registration of pesticides, we are for the moment not including any specific chemical control recommendations. Control measures include keeping the temperature below zero in storehouses, fumigation, insecticide treatments in fields. The removal of infested residues from last season’s harvest is essential.

Within the territory of the Former Soviet Union, the insect is marked with spotted distribution. The pest damages grain in both field and storehouses, becoming rather harmful.

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