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http://dx.doi.org/10.5423/RPD.2013.19.1.007

Changes in Sensitivity Levels of Botrytis spp. Population Isolated from Lily to Fungicides and Control under Field Condition  

Hahm, Soosang (Agricultural Environment Research Division, Chungnam Agricultural Research and Extension Services)
Kyeong, Kicheon (Taean Lily Experiment Station, Chungnam Agricultural Research and Extension Services)
Kim, Byungryun (Agricultural Environment Research Division, Chungnam Agricultural Research and Extension Services)
Han, Kwangseop (Agricultural Environment Research Division, Chungnam Agricultural Research and Extension Services)
Choi, Jongjin (Taean Lily Experiment Station, Chungnam Agricultural Research and Extension Services)
Nam, Yunkyu (Agricultural Environment Research Division, Chungnam Agricultural Research and Extension Services)
Yu, Seunghun (Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University)
Publication Information
Research in Plant Disease / v.19, no.1, 2013 , pp. 7-11 More about this Journal
Abstract
Forty eight isolates of Botrytis elliptica and 23 isolates of B. cinerea from several locations in Korea were tested for resistance to fungicides used in the farmer's fields. Isolation frequency of B. elliptica having $EC_{50}$ (effective concentration of 50%) value $500-1000{\mu}g/ml$ to benomyl and mancozeb appeared highly, suggesting that the two fungicides are not effective in controlling leaf blight of lily in the field. The isolates were tested for resistance to fungicides procymidone and iprodione which were most commonly used in the farmer's fields. The rates of $EC_{50}$ value $5-50{\mu}g/ml$ to procymidome and iprodione were 93.7% and 100%, respectively, and those of $0-0.1{\mu}g/ml$ to diethofencarb+carbendazim and fludioxonil were 98.0% and 93.8%, respectively. In the rain-protected cultivation, control of leaf blight of lily was the most effective when iprodine, diethofencarb+carbendazim, and fludioxonil were sprayed alternately four times during the growing season.
Keywords
Benzimidazole; Botrytis cinerea; Botrytis elliptica; Dicarboximide;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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