Azoxystrobin과 kresoxim-methyl의 오이 엽면 침투성과오이 흰가루병 방제 효과 (Effect of Foliar Uptake of Azoxystrobin and Kresoxim-methyl onFungicidal Activity against Cucumber Powdery Mildew)

서지정보

· 발행기관 : 한국응용생명화학회
· 수록지 정보 : Applied Biological Chemistry / 51권 / 2호 / 108 ~ 113페이지
· 저자명 : 유주현, 최경자, 김흥태

초록

Azoxystrobin applied by aqueous WP suspension 50 mg/l was slightly absorbed into cucumber leaf
in the absence of activator surfactant 24 h after spraying, but was increased to 25.7% by adding
polyoxyethylene monohexadecyl ether (12 moles of ethylene oxide, CE-12) 500 mg/l. Only 4.1% of
kresoxim-methyl WDG 100 mg/l in the absence of surfactant was absorbed into cucumber leaf 24 h
after spraying, but was increased to 58.0% by adding polyoxyethylene monooctadecyl ether (14
moles of ethylene oxide, SE-14) 1,000 mg/l. The effect of CE-12 500 mg/l on foliar uptake of
kresoxim-methyl at 50 mg/l was twice bigger than on azoxystrobin. Fungicidal activity of azoxystrobin
WP against cucumber powdery mildew was marginally increased by adding surfactants to
facilitate foliar uptake of azoxystrobin, so that the further increase of azoxystrobin uptake into
cucumber plant by the addition of adjuvant was not a practical mean for enhancing the formulation
efficacy in view of fungicidal activity. It was not possible for kresoxim-methyl to assess the
adjuvant effect on the fungicidal activity in a greenhouse trial due to the vapor effect of active
ingredient.

영어초록

Azoxystrobin applied by aqueous WP suspension 50 mg/l was slightly absorbed into cucumber leaf
in the absence of activator surfactant 24 h after spraying, but was increased to 25.7% by adding
polyoxyethylene monohexadecyl ether (12 moles of ethylene oxide, CE-12) 500 mg/l. Only 4.1% of
kresoxim-methyl WDG 100 mg/l in the absence of surfactant was absorbed into cucumber leaf 24 h
after spraying, but was increased to 58.0% by adding polyoxyethylene monooctadecyl ether (14
moles of ethylene oxide, SE-14) 1,000 mg/l. The effect of CE-12 500 mg/l on foliar uptake of
kresoxim-methyl at 50 mg/l was twice bigger than on azoxystrobin. Fungicidal activity of azoxystrobin
WP against cucumber powdery mildew was marginally increased by adding surfactants to
facilitate foliar uptake of azoxystrobin, so that the further increase of azoxystrobin uptake into
cucumber plant by the addition of adjuvant was not a practical mean for enhancing the formulation
efficacy in view of fungicidal activity. It was not possible for kresoxim-methyl to assess the
adjuvant effect on the fungicidal activity in a greenhouse trial due to the vapor effect of active
ingredient.

참고자료

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