WebAstylus atromaculatus is a species of beetle in the family Melyridae.It is variously known as the spotted maize beetle, or pollen beetle.It is indigenous to Argentina and neighbouring countries, but has been accidentally imported into various other regions such as the warmer regions of North America and much of Africa, where it has become invasive. WebIn South Africa, modified Bt (Cryl Ac) cotton cultivars and organic ones coexist. This raises the question of the risk of dissemination of genetically modified (GM) pollen to non-GM crops by visiting insects. We inventoried the flower-visiting insects in Bt and non-Bt cotton fields of the South African Highveld region and investigated their role in pollen dispersal. Their …

Astylus atromaculatus (Coleoptera: Melyridae): Abundance and …

Web01. jan 2007. · (1) The ability of Harpalus rufipes (Degeer) to feed on aphids was tested in laboratory experiments, and compared with evidence of aphid feeding on cereals and other crops in small outdoor plots.... The beetle populations commonly peak during midsummer and autumn, when they feed mainly on pollen from grain crops. When there are too few crops such as sunflowers and maize, the beetles are prone to concentrate on grasses, and on forbs in flower. Pogledajte više Astylus atromaculatus is a species of beetle in the family Melyridae. It is variously known as the spotted maize beetle, or pollen beetle. It is indigenous to Argentina and neighbouring countries, but has been accidentally … Pogledajte više Adult Astylus atromaculatus are roughly oval in shape, slightly elongated, with parallel sides. They generally are slightly flat in shape, and like most Melyridae, tend to be soft and leathery in texture. They attain about 12 mm in bodily length by 5 mm wide. … Pogledajte više Like possibly all Melyridae, Astylus atromaculatus is undoubtedly poisonous; livestock deaths have resulted from swallowing large numbers of beetles in their fodder or … Pogledajte više The adult Astylus atromaculatus are herbivorous, particularly being attracted to flowers and feeding on pollen. In this role they are not much of an agricultural problem and for some crops, such as sunflowers, it is suggested that they are more … Pogledajte više google is asking to verify my age

Influence of visual and olfactory cues on field trapping of the …

Web15. jan 2013. · (2007). Habitat management in control of Astylus atromaculatus (Coleoptera: Melyridae) in maize under subsistence farming conditions in South Africa. South African Journal of Plant and Soil: Vol. 24, No. 4, pp. 188-191. http://biodiversityexplorer.info/beetles/melyridae/astylus_atromaculatus.htm Web15. jan 2013. · Spotted maize beetle, (Astylus atromaculatus), African boll- worm, (Helicoverpa armigera) and various aphid species attack sorghum from flowering onwards.The possibility of simultaneous control of these pests with a single application of an insecticide exists. The efficacy of insecticides registered for the control of aphids, A. … chic coffee maker