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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Bean weevils feed on vetchesbeans and other leguminous plants. Retrieved 3 February Larval period lasts Legs are yellow red and antenna red brown.

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Related Species Lesser pea weevil – [Bruchus affinis] Pea weevil – [Bruchus pisorum] Broadbean weevil – [Bruchus rufimanus] Graham bean weevil – acanthiscelides analis] Southern Cowpea weevil – [Callosobruchus chinensis] Cowpea weevil – [Callosobruchus maculatus] Cowpea Weevil – [Callosobruchus phaseoli]. Chemical Control Due to the variable regulations around avanthoscelides registration of pesticides, we are for the moment not including any specific chemical control recommendations.

About ecology and harming activity of bean weevil Acanthoscelides obtectus Say in Armenian conditions. The pest damages grain in both field and storehouses, becoming rather harmful. American naturalist Thomas Say named the bean weevil species as Acanthoscelides obtectus in The eggs develop during days. The native land of this species is Central America. Cajanus cajan pigeon pea.


The removal of infested residues from last season’s harvest is essential. Articles with ‘species’ microformats Commons category link is on Wikidata. Zashchita i karantin rastenii Obtctus most websites we use cookies. The beetle body is ovoid, slightly convex, light or dark brown, with yellow-green golden hairs and longitudinal spots from above, light gray hairs from below. Bean weevil and its control. Eggs are milky white. This limits the species to how far north it can spread, and is found only as far north as northern Otectuswith some being found in south-west Siberia.

AgroAtlas – Pests – Acanthoscelides obtectus Say – Bean Weevil

Close Find out more. The grub, or larva, is whitish and hairy. From Wikipedia, the free encyclopedia. Mylabris mimosae Oliver It has been recorded on a number of other legumes, including cowpeas in Mexico, chickpeas and Voandzeia subterranea, but it seldom attains pest status on these hosts.

Views Read Edit View history. In other projects Wikimedia Commons Wikispecies. See Department of Agriculture, Western Australia weblink.


The insect produces a sweet, “fruity” pheromone that gives cultures of newly emerged adults a pleasant smell.

Proceedings of Sixth Session of Transcaucasian Board to coordination research works on plant protection November, White pupa is about 4 mm in length.

At first they feed on vetch, peavine, lupin, alfalfa, and other leguminous cultures; they ogtectus move on to haricot bean, bean, soybean, lentils.

bean bruchid (Acanthoscelides obtectus)

Young cylindrical white larvae have bristles and 3 pairs of legs. Several larvae can develop obtecfus one grain to The insect has clavate antenna first segments are red-brown and yellow-red 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.

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