Efficacy of Four Insecticides Against Alfalfa Weevil with Comparison of Impacts on Beneficial Species, 2016
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a comparison of teachers and supervisors, with respect to teacher efficacy and reflection
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15 صفحه اولEvaluation of toxicity of biorational insecticides against larvae of the alfalfa weevil
The alfalfa weevil, Hypera postica (Coleoptera: Curculionidae), is a major pest of alfalfa Medicago sativa L. (Fabaceae). While H. postica usually causes the most damage before the first cutting, in summer of 2015 damaging levels of the pest persisted in Montana well after the first harvest of alfalfa. Although conventional insecticides can control H. postica, these chemicals have adverse effec...
متن کاملManagement of Egyptian Alfalfa Weevil and Protection of Yields with Selected Insecticides
The Egyptian alfalfa weevil (alfalfa weevil in some areas) during most years is the most severe insect pest of alfalfa in California. These pests feed on alfalfa leaflets and stems, reducing hay yields. Several insecticides provide acceptable control of this pest. Historically, product choice has been driven by efficacy on the pest, cost, presence of other pests, i.e., aphids, days before harve...
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the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...
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ژورنال
عنوان ژورنال: Arthropod Management Tests
سال: 2016
ISSN: 2155-9856,2155-9856
DOI: 10.1093/amt/tsw118