비티제를 이용한 포도 ‘캠벨얼리’ 유기과수원 포도들명나방 방제효과
Control Efficacy of Bacillus thuringiensis against Herpetogramma luctuosalis on ‘Campbell Early’ Organic Vineyard
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초록
The experiment of grape leafroller (Herpetogramma luctuosalis) was carried out at Okcheon area from 2007 to 2009 and 2015. The grape leafroller had been occurred at a campbell early’ organic vineyard in Okcheon. It’s larva was rolling the leaf of grape and ate the leaf. So the leaf of grape decreased. In organic vineyards, adult grape leafroller’ generation rate per year showed the first peak in mid-June, the second peak in early –August and the third in mid-September. The larva showed the first peak in early July and the second peak in late August-early September. The grape leaf roller had three generations per year. And it took 60.9±1.09 days from egg to adult in growth chamber (VS-91G09M-1300) which the relative humidity conditions was 60±10%, temperature 25±2℃ and photoperiod 16L:8D (The egg:12±0 days, larvae:22.2±0.22 days, pupa:10.6±0.75 days and adult:16.1±0.45 days). It was conducted to find out the effect of microbial pesticide treatments to control H. luctuosalis. The 4 microbial pesticides (Bacillus thurigiensis) were treated twice on the grape leaves in June 11 and 21 at an organic vineyard in Okcheon. On 10 days after last treatment, the control value of all microbial pesticides were more than 95%. When the dates of spraying to the grape leaves were on May 22, June 12 and July 2 each, the effects of microbial pesticide were 73.9%, 93.5% and 43.6% respectively. As a result, it was effective that Bt was sprayed to grape leaves on mid and late June for controling the H. luctuosalis in organic vineyard. And microbial pesticide Bt was thought to be useful to control the grape leafroller in organic vineyard.
Abstract
The experiment of grape leafroller (Herpetogramma luctuosalis) was carried out at Okcheon area from 2007 to 2009 and 2015. The grape leafroller had been occurred at a campbell early’ organic vineyard in Okcheon. It’s larva was rolling the leaf of grape and ate the leaf. So the leaf of grape decreased. In organic vineyards, adult grape leafroller’ generation rate per year showed the first peak in mid-June, the second peak in early –August and the third in mid-September. The larva showed the first peak in early July and the second peak in late August-early September. The grape leaf roller had three generations per year. And it took 60.9±1.09 days from egg to adult in growth chamber (VS-91G09M-1300) which the relative humidity conditions was 60±10%, temperature 25±2℃ and photoperiod 16L:8D (The egg:12±0 days, larvae:22.2±0.22 days, pupa:10.6±0.75 days and adult:16.1±0.45 days). It was conducted to find out the effect of microbial pesticide treatments to control H. luctuosalis. The 4 microbial pesticides (Bacillus thurigiensis) were treated twice on the grape leaves in June 11 and 21 at an organic vineyard in Okcheon. On 10 days after last treatment, the control value of all microbial pesticides were more than 95%. When the dates of spraying to the grape leaves were on May 22, June 12 and July 2 each, the effects of microbial pesticide were 73.9%, 93.5% and 43.6% respectively. As a result, it was effective that Bt was sprayed to grape leaves on mid and late June for controling the H. luctuosalis in organic vineyard. And microbial pesticide Bt was thought to be useful to control the grape leafroller in organic vineyard.
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