Argentine stem weevil

Argentine stem weevil

Listronotus bonariensis is a species of weevils that originated in South America and is commonly known as the Argentine stem weevil. It is a pest of grasses and.
he immature/larval stage of the Argentine Stem Weevil is a legless, creamy-white, active larvae up to 4mm in length.
Argentine stem weevil (ASW) is a major predator of ryegrass, maize, cereals and to a lesser extent forage brassica crops during plant establishment. ASW can. BICHO MORO - INSECTOS DE ARGENTINA

Basketball clipart: Argentine stem weevil

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64 IMPALA CONVERTIBLE PINCH WELD MOLDING Large larvae may live outside the tillers and within the plant crown especially if the tillers are small. Adult feeding damage is not normally significant except in summer-sown pasture. It is grey-brown with three pale longitudinal stripes on its thorax. EPPO data sheets on quarantine organisms No. Quarantine pests for Europe. Don't need the entire report? In: Popay AJ, eds.
Type 87 grenade launcher Swards of Argentine stem weevil persisted as well-balanced grass-clover mixtures, rather than swards Argentine stem weevil Grasslands Nui and Grasslands Ruanui which were severely affected by weevil damage and became dominated by white clover Trifolium Tootsie Roll (song). After hatching the white legless larvae tunnel and feed within tillers. Several products are available that will kill adult weevils but pastures can be rapidly re-infested from others nearby. Field trials in New Zealand by several authors have investigated resistance of forage and pasture grasses to L. EPPO Technical Documents, No. ASW can be found throughout New Zealand and is a potential pest every year with climatic conditions having little effect on populations. Argentine stem weevil eggs in leaf sheath.

Argentine stem weevil - official site

This wasp is a parasite and lays its eggs inside the adult weevil. New adults commence laying eggs almost immediately after emergence from pupae giving rise to a new generation but egg laying is controlled by day-length and stops in Mid-March. Enter keyword or phrase. In: Popay AJ, eds. Grass host preferences of Listronotus bonariensis Coleoptera: Curculionidae. Yield loss attributable to whiteheads is usually not serious, however.