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Journal of Crop Protection، جلد ۹، شماره ۳، صفحات ۴۲۱-۴۳۷
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عنوان انگلیسی Chemical control optimization of Trialeurodes vaporariorum (Homoptera: Aleyrodidae) in gerbera commercial greenhouses
چکیده انگلیسی مقاله Whiteflies are becoming a very serious menace and have shown resistance to many synthetic insecticides since early 1980s. The greenhouse white fly, Trialeurodes vaporariorum (Westwood) is one of the most significant pests in many horticultural and greenhouse crops worldwide. Currently, it is controlled by chemical pesticides. In current study, the best conditions for chemical control of T. vaporariorum on gerbera applying Confidor®, Palizin® and Proteus® were investigated. The experiment was performed in a commercial greenhouse in Pakdasht, Tehran. The same size and not yet flowering gerbera plants in pots were selected for further analysis. Before the experiment, the numbers of nymph and adults were counted in order to evaluate application effect on their population. Each pot was covered by insect-proof net, separately. Selected factors included: the pesticide in three levels, pesticide dose in three levels (0.5, 1 and 1.5 ml/l), application time in three levels (at 8, 12 and 16 O’clock) and replications in a month in three levels (2, 4 and 6 times). The experiment was conducted on the basis of Response Surface Method with central composite design to optimize the chemical control condition. Data were analyzed using Design Expert 10 software. The mortality percentage model for adults was predicted. Based on the predicted model, the optimum conditions for controlling greenhouse whitefly in gerbera commercial greenhouses were obtained. Optimal conditions with the less replications, which was two, were predicted with the dose of 0.5 to 0.7 ml/l up to the time at 10 or dose of 1.5 ml/l at the time 16 using Proteus®.
کلیدواژه‌های انگلیسی مقاله Gerbera,Confidor®,Palizin®,Proteus®,Trialeurodes vaporariorum  
نویسندگان مقاله Zahra Alibakhshi |
Department of Entomology, College of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran.

Samin Seddigh |
Department of Plant Protection, College of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran.

Bahram Tafaghodinia |
Department of Agriculture Research, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran.

نشانی اینترنتی https://jcp.modares.ac.ir/article_1490_7dfdcfddd35ec1dda1d4a4bb8f47520d.pdf
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