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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Pteromalidae in the eastern United States.

Hypera postica – Wikipedia

Journal of Economic Entomology, 60 4: Relationship of herbivore-imposed stress to weeds in alfalfa. Third and fourth instars defoliate plants by feeding between the veins, and also on the buds and growing tips.

After emergence adults leave the field for available cover where they undergo summer aestivation.

Ichneumonidaetwo parasites of Hypera postica Gyllenhal Coleoptera: They are long-lived and usually raise only a single annual generation. Beitrage zur Entomologie, 34 2: The Egyptian alfalfa weevil, the threat to California alfalfa.

Food and Agriculture Organization, The lucerne weevil, Hypera variabilis Hbst.

Canadian Entomologist, 8: Population trends of the alfalfa weevil larvae and the distribution of its parasites in Pennsylvania. Abstract In the Eastern United States, larvae of the alfalfa weevil, Hypera postica Gyllenhalencapsulate eggs of the ichneumonid Bathyplectes curculionis Thomson.


Braconidae, Euphorinaea new parasite of the alfalfa weevil introduced into the United States. Both the larvae and the adults are diurnal and feed on the foliage of alfalfa, the larvae doing the most damage. Early season larval damage may be detected by finding minute holes in leaf terminals.

Mouthpart sensilla and mandibles of the adult alfalfa weevil Hypera postica and the Egyptian alfalfa weevil H. Environmental Entomology, 1 1: The body length of the adult is 4. Indian Journal hypeera Entomology, 64 2: Alfalfa weevil Hypera postica Gyll. Contribution to the study of the Hymenopterous parasites of Hypera postica Col. This article is also available for rental through DeepDyve. A fungal disease of alfalfa weevil larvae was found in Ontario, Canada in Harcourt et al.

Hypera postica

Missouri distribution of species of Hypera Coleoptera: You have entered an invalid code. A new microsporidium in alfalfa weevil populations: Curculionidae in Central Kentucky.

Journal of the Kansas Entomological Society, 69 4: Influence of the fungal pathogen, Erynia sp. Journal of the Entomological Society of British Columbia, A natural epizootic of a coccidian in a population of the Egyptian alfalfa weevil, Hypera brunneipennis and the alfalfa weevil, H. Proceedings of the Entomological Society of Manitoba, Journal of Applied Entomology, 3: Whitford F, Quisenberry SS, The apparent climatic limitations of the alfalfa weevil in California.

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Linear pitfall traps, a modification of an established trapping method. The lariidine and rhynchophorine larvae and their foodplants. Environmental Entomology, 16 1: Report on insect pests and fungous diseases of the field and orchard in Scouting Procedure Alfalfa producers in southern and central Illinois should monitor stands very carefully in March, April, May, and June.

Under laboratory conditions, encapsulation was observed in all larval instars parasitized but was more pronounced in second through fourth instars containing single parasite eggs. Agricultural Research Review, 58 1: Sampling for the Egyptian alfalfa weevil: Hashmi AA, Tashfeen A, Illinois distribution of the fungus Entomophthora phytonomi Zygomycetes: Parker, ; O’Brien and Wibmer, Alfalfa weevil activity can be predicted with the use of degree-days.

The larvae and adults feed on the leaves, buds and flowers of Chinese milk vetch Leguminosae seriously which is used as green manure and the source of honey collected by apiarists.

Alfalfa weevil in Oklahoma: