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자료유형
학술저널
저자정보
Lee, Dong-Kyu (Department of Biological Sciences, Kosin University)
저널정보
한국곤충학회 한국곤충학회지 한국곤충학회지 제32권 제1호
발행연도
2002.1
수록면
37 - 41 (5page)

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Mosquito control evaluations of the granular formulation of 0.5% pyriproxyfen were undertaken in marshes and a pond in Busan during the period of July through September, 2001. In marsh condition where Culex pipiens pallens were predominantly breeding, the treatment of pyriproxyfen produced over an average of 95 % mosquito larval reduction at a concentration of 0.05 mg/I for the first 4 weeks in spite of heavy precipitation (total 274.4mm) during the period. Reduction rates of 72.6% and 32.3% appeared in the 5th and 7th weeks probably due to heavy input of sewage and flood. However, the reduction rate increased again at the 8th week, showing a 94.5% reduction, probably because of the slow releasing of pyriproxyfen granular formulation. In the second treatment of pyriproxyfen, complete mortality was obtained at the 1st and 3rd weeks. Also, a satisfactory level of Cx. pipiens larval reduction of 96.6% was observed at the 4th week. In a pond assessment, the treatment of pyriproxyfen at a concentration of 0.05 mg/I produced a complete reduction of Cx. pipiens pallens from the 1st week through the 4th week after treatment. In the second treatment, 100.0% reduction was obtained at the 1st and 2nd weeks in the same sites. The treatment resulted in 84.4% and 97.9% reduction of mosquitoes at the 3rd and 4th weeks, respectively.

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