APHELINUS MALI PDF

Share Woolly Apple Aphid Management The woolly apple aphid WAA , Erisoma lanigerum has historically been considered an occasional apple pest in Ontario, but is now seen more frequently in orchards. Besides apples, other hosts include pear, hawthorn, mountain ash and elm. There can be two colonies of WAA: aerial and underground on roots. While aerial colonies are well established, it is debated whether underground colonies are an issue in Ontario or if the winters are too harsh for survival. There are few reports of WAA impeding root development. Aerial colonies overwinter as eggs in bark cracks and crevices Figure 1.

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Mizuru No adverse health effects identified. Aquatic invertebrates — Acute 48 hour EC 50 mg l In the early stages of development, there are no external signs of parasitism. The larvae and pupae remain hidden inside the host; the larvae are yellow with red eyes, and the pupae are black.

Development of Aphelinus mali, an endoparasitoid of woolly apple aphid, Eriosoma lanigerum, at different temperatures. Vapour pressure at 20 o C mPa.

Solubility — In organic solvents at 20 o C mg l The thorax is black, and the outlines of legs and other appendages become visible as the pupa develops. Threshold of Toxicological Concern Cramer Class.

Look for woolly apple aphid mummies with circular exit holes. Q3 No adverse effects identified or expected. Dissipation rate RL50 on plant matrix. The larva takes ten to twelve days to develop before pupating inside the body of its host. Minimum active substance purity. Earthworms — Acute 14 day LC 50 mg kg It inserts its ovipositor into the underside of a woolly aphid and lays an egg, which hatches in about three days. Degradation point o C.

Soil degradation days aerobic. Hoyt, and Michael J. Soft cover copies are available for purchase. Emergence of adults corresponds with the start of nymph production by the woolly apple aphid in the spring. Boiling point o C. Views Read Edit View history. Woolly apple aphid Eriosoma lanigerum Hausm.

Water phase only DT50 days. New Zealand Chemical structure: Related Posts.

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Aphelinus mali

Natural enemy impact on the abundance of Diuraphis noxia Homoptera: Aphididae in wheat in southern France. Environmental Entomology, 24 2 Howard LO, Aphelinus mali and its travels. Huang Jian, Systematic studies on Aphelinidae of China Hymenoptera: Chalcidoidea. Bionomics of Aphelinus asychis Hymenoptera: Eulophidae , an introduced parasite of the sorghum greenbug. Jasnosh VA,

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APHELINUS MALI PDF

Mizuru No adverse health effects identified. Aquatic invertebrates — Acute 48 hour EC 50 mg l In the early stages of development, there are no external signs of parasitism. The larvae and pupae remain hidden inside the host; the larvae are yellow with red eyes, and the pupae are black. Development of Aphelinus mali, an endoparasitoid of woolly apple aphid, Eriosoma lanigerum, at different temperatures. Vapour pressure at 20 o C mPa. Solubility — In organic solvents at 20 o C mg l The thorax is black, and the outlines of legs and other appendages become visible as the pupa develops.

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Beers , Stanley C. Hoyt, and Michael J. Willett, originally published ; revised March E. Beers, October This small wasp, native to the northeastern United States, parasitizes woolly apple aphid by laying its eggs directly into the body of the aphid.

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Description[ edit ] The adult A. Its transparent membranous wings are longer than its abdomen and fold flat along its back. Although it can fly, it prefers to walk and jump, and often conceals itself under leaves. The larvae and pupae remain hidden inside the host; the larvae are yellow with red eyes, and the pupae are black. It was introduced in to the orchards of the Pacific Northwest in the region of Hood River and spread naturally. It inserts its ovipositor into the underside of a woolly aphid and lays an egg, which hatches in about three days.

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