نتایج جستجو برای: green lacewing
تعداد نتایج: 140149 فیلتر نتایج به سال:
the common green lacewing is an important natural enemy used for pest control in greenhouses. it is also very common in many agricultural systems. hence, studying lethal and sublethal effects of insecticides on this predator would be useful. toxicity of endosulfan, imidacloprid and indoxacarb was assessed on 1st instar larvae of chrysoperla carnea (stephens) in laboratory. residual bioassays we...
Micromusposticus (Walker) is a small brown lacewing fly rarely collected in Canada and represented in collections by only a limited number of specimens. Indeed, fewer than 50 specimens were captured in Québec and Ontario over the last century, all within a small area delimited by the northern shore of Lake Erie, Ottawa and Montréal. Aylmer, located on the north shore of the Ottawa River, northw...
In the article, use of lacewing (chrysopa septempunctata wesmael) against apple red mite (Panonychus ulmi Koch), which is found in intensive orchards territory republic, at different consumption rates (1:5, 1:10, 1:15), based on its pest ratio and biological effectiveness. The results obtained are illuminated. By end season, number mites had been to have decrease 87.8%. Our research, less effec...
Grassland insects face some of the most severe declines in species diversity and total abundance, part due to agriculture. Livestock grazing is largest agricultural land use Mongolia that can have both positive negative effects on insect communities. Here, we provide an assessment rare charismatic serve as a baseline for monitoring future population changes selected nature reserve. A 20 were ch...
نفوذپذیری و رواناب بهعنوان مهمترین فرآیندها و پدیدههای فیزیکی در یک حوضهآبخیز میباشند که ارزیابی برخی از خصوصیات و پارامترهای آنها از اهمیت خاصی برخوردار است. با توجه به اینکه در حوضههایآبخیز تخمین تمامی پارامترهای موردنیاز جهت بررسی میزان نفوذپذیری و رواناب میسر نمیباشد لذا انتخاب مدلی که بتواند پیشبینی با دقت قابلقبولی را ارائه کند، امری ضروری بهنظر میرسد. تحقیق حاضر با هدف مقای...
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