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자료유형
학술저널
저자정보
Kim, Young-Joon (School of Agricultural Biotechnology, Seoul National University) Lee, Si-Woo (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, Rural Development of Administration) Cho, Jum-Rae (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, Rural Development of Administration) Park, Hyung-Man (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, Rural Development of Administration) Ahn, Young-Joon (School of Agricultural Biotechnology, Seoul National University)
저널정보
한국응용곤충학회 Journal of Asia-Pacific Entomology Journal of asia-pacific entomology 제10권 제2호
발행연도
2007.1
수록면
165 - 170 (6page)

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A field colony of Tetranychus urticae (Koch) resistant to dicofol was selected with dicofol successively for 20 generations to produce the DR-20 strain. Resistance and multiple resistance levels of the DR-20 strain to 15 acaricides were determined using a spray bioassay. The DR-20 strain was extremely resistant to dicofol [resistance ratio (RR), 465]. The strain showed extremely strong resistance to acrinathrin (RR, 373) and benzoximate (RR, 197) and strong resistance to bromopropylate (RR, 136), fenbutatin oxide (RR, 65), fenpropathrin (RR, 70), fenpyroximate (RR, 68), and pyridaben (RR, 63). A RR of 11-29 was observed with abamectin, fenazaquin, milbemectin, propagite, and tebufenpyrad. The DR-20 strain exhibited low levels of resistance (RR<3) to azocyclotin and chlorfenapyr. In comparative assays with detoxifying enzymes, the DR-20 strain showed 4.7-fold higher activity in p-nitroanisole-O-demethylation and 1.6-fold higher activities in both ${\alpha}-and\;{\beta}-naphthyl$ acetate hydrolysis. Synergist experiments with different metabolic inhibitors revealed that piperonyl butoxide, iprobenfos, triphenyl phosphate, and 4,4-dichloro-${\alpha}-methyl$ benzhydrol had little or no synergistic activity in the susceptible and DR-20 strains. These results suggest that employment of certain acaricides with little multiple resistance will be useful for the management of dicofol resistance in the field.

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