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Insecticidal Activities of Polymers and Surfactants Against Sweet Potato Whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae)  

Yoon, Chang-Mann (Dept. of Plant Medicine, Chungbuk National University)
Cho, Sun-Ran (Dept. of Plant Medicine, Chungbuk National University)
Moon, Sang-Rae (Dept. of Plant Medicine, Chungbuk National University)
Shin, Youn-Ho (Dept. of Plant Medicine, Chungbuk National University)
Kim, Gil-Hah (Dept. of Plant Medicine, Chungbuk National University)
Publication Information
The Korean Journal of Pesticide Science / v.15, no.2, 2011 , pp. 177-187 More about this Journal
Abstract
This study was performed to evaluate the polymers and surfactants as the potential control agents of sweet potato whitefly Bemisia tabaci, which is causing problems in ornamental garden and greenhouse. Polymers have an insecticidal activity to knock down and to be lethal to small winged insects by its viscosity. Among five polymers tested at 0.2% concentration, polinol P-24 showed the highest insecticidal activity as 59.4% against B. tabaci adult in cylindrical chamber, and followed by polinol P-20 (insecticidal activity, 57.1%). When treated at 0.1 % or 0.3% concentrations, Polinol P-24 also showed the highest insecticidal activity with 43.3% and 54.5%, respectively. Among eight surfactants tested, insecticidal activity was the highest in 0.0005% NP10 treatment (70.0%), and followed by 0.001% NP7 (67.4%). The synergistic effect between polinol P-24 and eight surfactants was evaluated. After bioassays, the 0.2% polinol P-24 plus 0.005% NP10 was selected as a candidate control agent for controlling of B. tabaci adults. Polinol P-24/NP10 was showed the highest control efficacy against B. tabaci adults applied three times at three day-intervals in square rearing cage. In the greenhouse, the mixture treatment showed good control value over 70% seven days after treatment.
Keywords
polymer; surfactant; insecticidal activity; sweetpotato whitefly; Bemisia tabaci;
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Times Cited By KSCI : 2  (Citation Analysis)
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