Guidelines for controlling aphids in
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چکیده
Guidelines for controlling aphids in brassica crops and combating insecticide resistance in the peach-potato aphid, Myzus persicae
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Preventive control of aphids in ornamental plants with complementary parasitoids.
Biological control of aphids can be achieved with parasitoids. A parasitoid is a wasp able to parasitize aphids in a host-specific way. These natural enemies of aphids are used in organic or integrated pest management strategies. In order to apply the matching parasitoid against a given aphid species, the aphid has to be detected in the crop and subsequently identified. By the time the aphids a...
متن کاملThe stimuli evoking the aerial-righting posture of falling pea aphids.
Some wingless insects possess aerial righting reflexes, suggesting that adaptation for controlling body orientation while falling through air could have preceded flight. When threatened by natural enemies, wingless pea aphids (Acyrthosiphon pisum) may drop off their host plant and assume a stereotypic posture that rotates them in midair to land on their feet. The sensory information triggering ...
متن کاملEconomic Impacts of the U.S. Soybean Aphid Infestation: A Multi-Regional Competitive Dynamic Analysis
We estimated the economic benefits resulting from controlling soybean aphid infestation by using a multi-regional competitive dynamic equilibrium model. Results indicate that the reduction of soybean production resulting from a soybean aphid infestation is largely absorbed by reducing soybean exports, due to the higher price elasticity of export demand compared to domestic demand. Producer bene...
متن کاملComparison effect of ethanolic seed extract of Melia Azedarach L. (Meliaceae) against two Aphid species
Background & Aim: Aphids are of serious pests and vectors of multitude of viral diseases of field crops, vegetables, and greenhouse crops. They have displayed a remarkable ability to establish resistance to almost every insecticide with which it has been treated. To reduce the damage of these pests and dependence on the sometimes unwise use of synthetic pesticides in crop and vegetable plan...
متن کاملFacultative bacterial symbionts in aphids confer resistance to parasitic wasps.
Symbiotic relationships between animals and microorganisms are common in nature, yet the factors controlling the abundance and distributions of symbionts are mostly unknown. Aphids have an obligate association with the bacterium Buchnera aphidicola (the primary symbiont) that has been shown to contribute directly to aphid fitness. In addition, aphids sometimes harbor other vertically transmitte...
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