Abstract
Commercial formulation of fungicides was studied in the golf course for evaluation against Typhula incarnata causal agents of gray snow mold. Efficacies of fungicides application, fungicide mixture, fungicides applied method (irrigation and spray) and fungicides applied time (early fall and late fall) were evaluated for their influence on the chemical control of gray snow mold of turfgrass during the winter season in Yongpyeong golf course, Korea. Unsprayed control has significantly more disease severity than three fungicides (azoxystrobin, propiconazole, and tebuconazole) were applied to field plots. Effect of three fungicides was over 80% with control value for controlling gray snow mold on Kentucky bluegrass and creeping bentgrass species. Effect of fungicide mixture with different family groups had an over 93% control value of gray snow mold on Kentucky bluegrass species. It was not significantly difference in fungicidal effect according to applied method (irrigation and spray) with azoxystrobin on Kentucky bluegrass and creeping bentrasss species. Effect of fungicides applied time was a significantly difference on disease control by tebconazole early fall spray.
Typhula incarnata에 의한 설부병 방제를 위한 살균제의 효과를 골프코스에서 평가하였다. 살균제의 살포효과, 살균제의 혼용효과, 살균제의 살포방법에 의한 효과 및 살포시기에 의한 설부병의 방제효과에 미치는 영향을 용평 골프장에서 평가하였다. 무처리구는 3종의 살균제처리구보다 병 피해가 더욱 심각하였다. 3종의 살균제(Azoxystrobin, propiconazole, tebuconazole)는 Kentucky bluegrass 종과 creeping bentrasss 종의 잔디에서 80% 이상의 설부병을 방제하는 효과가 있었다. 2종 이상의 혼용살포에 의한 설부병의 방제효과는 Kentucky bluegrass 종에서 93% 이상 방제효과가 있었다. Azoxystrobin 살균제를 관주와 경엽살포에 대한 설부병 방제 효과는 2종의 잔디에서 모두 유의성의 차이가 없었다. 살균제 살포시기에 따른 설부병 방제 효과는 tebuconazole 살포구에서 유의성 있었다. 이른 가을에 살포하는 것이 더 효과적이었다.