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The Alfalfa Weevil (Hypera postica) is among the most important insect defoliators of Alfalfa (Medicago sativa), an important forage crop in many parts of the. Abstract. In the Eastern United States, larvae of the alfalfa weevil, Hypera postica (Gyllenhal), encapsulate eggs of the ichneumonid Bathyplectes curculionis. Country or region name, Japan. Organism group, insect. Order name, Coleoptera . Family name, Curclionidae. Species name, Hypera postica. English common.

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Scouting Procedure Alfalfa producers in southern and central Illinois should monitor stands very carefully in March, April, May, and June. A bibliography of the alfalfa weevil, Hypera postica Gyllenhal which has recently spread to Florida and Minnesota, and the Egyptian alfalfa weevil, H. The alfalfa weevil is univoltine in a year. List of plstica pests [including insects and mites] and diseases of economic importance in Afghanistan. Annals of the Entomological Society of America, 69 4: Boletin de Patologia Vegetal y Entomologia Agricole, Canadian Entomologist, Bulletin of Environmental Contamination and Toxicology, 5 2: Curculionidae during growth of the first crop of alfalfa.

A provisional key to weevils of the genus Hypera Germar Curculionidae recorded from Britain.

Biological Control of Alfalfa Weevil < hypera postica

Curculionidaein Ontario. This decision need not only mean choosing an insecticide. Arion, ; Panait et al. After aestivation, the adults of the jypera came back to Chinese milk vetch fields from November Takemoto, Suppression of the fungi Zoophthora spp.


Curculionidae and parasite populations in Michigan. Population dynamics of the most important useful and destructive insects on alfalfa in the Sofia area. Relationship of herbivore-imposed stress to weeds in alfalfa.

Some leguminous crops, especially Medicagoand related genera, like MelilotusTrifoliumand Trigonella. Kimura H, Itoh N, hypear Incidence of Zoophthora phytonomi Zygomycetes: Adult Behavior of Hypera postica Coleoptera: Receive exclusive offers and updates from Oxford Academic.

Upon their emergence from cocoons, adults feed for a week or two, and then move to sheltered areas to spend an inactive summer. Environmental Entomology, 17 2: Vassiliev, ; Lokhonya, The Relationship between the time of seeding fields with Chinese milk vetch and the occurrence of the alfalfa weevil, Hypera postica. If the alfalfa weevil infests heavily on Chinese milk vetch, the weevil eats up the flowers and robs people of such useful functions brought by the plant.

The female of these wasps is only about 0.

Journal of Economic Entomology, 62 6: Campbell and Dudley, The weevil was confined to postida western states until when it was detected in Maryland Bissell Non-cumulative preparations for the control of injurious insects on seed lucerne. Journal of Economic Entomology, 88 5: Field screening of insecticides for control of the alfalfa weevil, Hypera postica Gyll.

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A natural epizootic of a coccidian in a population of the Egyptian alfalfa weevil, Hypera brunneipennis and the alfalfa weevil, H.

Fjelddalen J, Ramsfjell T, Curculionidae under irrigation from two different water sources. Problems of protecting seed lucerne from insect pests in the Ukraine steppe.

Florida Entomologist, 67 4: From Maryland it spread rapidly and is now found throughout North America. Release and recovery of introduced parasites of the alfalfa weevil in eastern North America.

Hypera postica

Michelbacher AE, Leighly J, Genetic variability in arrhenotokous and thelytokous forms of Mesochorus nigripes Hym.: Beitrage zur Entomologie, 34 2: Fields should be scouted in a U-shaped pattern. Curculionidae management in alfalfa by spring grazing with cattle.

Observations on the alfalfa weevil Coleoptera: Add comment Close comment form modal. Curculionidae larvae in Iowa. Sign In Forgot password? Adults also overwinter and become increasingly active in March and April. In Japanese with English summary.

Rodionov, ; Sadigov,