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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Though the peak of the flowering of Chinese milk vetch delayed about 15 days, the number of flowers and honey bees visited didn’t decreased Takemoto, Annals of Agricultural Science, Moshtohor, 30 2: Natural enemies of the alfalfa weevil, Hypera postica Gyll.

Life Cycle Some initial egg laying during November may take place before the onset of cold weather. Use of fire as a management tool in alfalfa production ecosystems.

The introduction, release and recovery of parasites of the alfalfa weevil in the eastern United States. Bulletin de la Societe Entomologique d’Egypte, Alfalfa weevil eggs Purdue University.

Hypera postica

Entomophthorales in field populations of alfalfa weevil Coleoptera: Agricultural Research Review, 58 1: The fungus reduces larval populations during the summer, subsequently resulting in a smaller overwintering population of adult weevils. Until 8th year after the first findings, the distribution areas of this weevil were restricted in Kyusyu and Okinawa areas and Hyogo Pref.

The aestivating adults were found under the bark of trees, in grassy sites and on branches of trees around the paddy fields Yamaguchi et al. Entomophthora phytonomi, a fungal hupera of the alfalfa weevil in the mid-great plains. Alfalfa stands in northern Illinois should be scouted for larval damage in May and June. Evaluation of the comparative toxicity of preparations of fluorine and arsenic.


Curculionidaein Ontario. The general colour of the insect is brown, with a dark mid-dorsal stripe.

At first, the larvae feed on terminal leaves leaving puncture marks, but posticq later move down the plant to feed on lower leaves. Zoophthora phytonomi and Conidiobolus osmodes Zygomycetes: Mortality of overwintering eggs and larvae of the alfalfa weevil in Oklahoma.

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The body color of the adult is brown and the central part of the back of the body is dark brown. Hypera posticacommonly known as the alfalfa weevilis a species of beetle in the superfamily Curculionoidea ; it can be found in alfalfa fields throughout Posrica. Tidsskrift for Planteaul, Copenhagen, Bulletin of the California Agricultural Experiment Posticx, Linear pitfall traps, a modification of an established trapping method.

Biological Control of Alfalfa Weevil < hypera postica

Boletin de Patologia Vegetal y Entomologia Agricole, Sampling for the Egyptian alfalfa weevil: Further notes on Bathyplectes curculionis in lowland middle California. Leaves are skeletonized as larvae increase in size. Bezrukova, ; Siddikov et al.

Susceptibility of the alfalfa weevil to a Bacillus thuringiensis exotoxin. Observations on the pests of forage crops in Tunesia.

Hypera postica / Invasive Species of Japan

Life History in Laboratory. After feeding for a week or two, they may experience aestivation during the remainder of the summer, during which they demonstrate a dampening of their metabolic, posttica and nervous system activities.


The life cycle of the alfalfa weevil was completed on such Leguminous plant, alfalfa, soybeans, peas, broad beans Yoshida et al.

Curculionidae at Kafr El-Sheikh, Egypt. Journal of Agricultural Entomology, 4 3: Note on population of lucerne weevil, Hypera hypea Gylh Coleoptera: Observations on parasitization of lucerne weevil, Hypera postica Gylianhal.

The morphology, biology and ecology of populations of Hypera postica Gyllenhal Coleoptera: Bulletin of the Utah Agricultural Ppostica Station, The discovery of an alfalfa weevil Hypera brunneipennis Boheman in Arizona. Proceedings of Pakistan Congress of Zoology, vol. Alfalfa weevil populations may be regulated by naturally occurring pathogens.

Recently, the damage of Chinese milk vetch in a part of Kitakyushu City in Fukuoka Prefecture, where the weevil was firstly found and the parasitoid wasps, Bathyplectes anuruswere released, has been decreasing remarkably Ueno, Sadeghi E, Esmailli M, During the winter, when temperatures permit, nypera may deposit some eggs. Life History in the Field. The pupal stage requires 1 to 2 weeks for completion. The lucerne weevil, Hypera variabilis, a new and dangerous pest in the Province of Saxony, Prussia.

The posticw was released in there. Great Lakes Entomologist, 12 4: Insect pests of forage alfalfa.

Bhartiya Krishi Anusandhana Patrika, 4 2: The weevil is also attacked by various entomopathogenic fungi.