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친환경농자재의 포도 진균병 병원균에 대한 생장억제 효과
차재순,김건주,최민경,박종한 한국식물병리학회 2008 식물병연구 Vol.14 No.3
Five environment-friendly farm materials including Chitomate®, Diegyun®, IC-66D®, Gold Bordo®, and Biospot ® were examined for their growth inhibition effect of the 7 fungal pathogens of grape in vitro. Diegyun®, being composed of natural ingredients which are extracted from a plant, was the most effective in suppression of mycelial growth of the fungi. Diegyun® inhibited the mycelial growth of all of fungi over 75% at 2,500 μg·mL−1 on potato dextrose agar(PDA) except Colletotrichum gloeosporioides 04-159. Growth inhibition effect of Chitomate®, being composed of the chitosan, varied depending on the fungal pathogens on PDA. It inhibited the mycelial growth of the Botrytis cinerea 06-063 at the rate of 75.8% at 40,000 μg·mL−1 on PDA while it inhibited the mycelial growth of the C. gloeosporioides 04-159 at the rate of 6.5%. IC-66D® and Gold Bordo® are two different formula of the Bordeaux mixture, showed different control effects on mycelial growth inhibition. Except of Acremonium sp. the growth inhibition of IC-66D® was a little higher than Gold Bordo®. Biospot®, a chlorine formula, showed the strongest growth inhibition on C. gloeosporioides 04-159 among the farm materials used. Inhibition of spore germination of Chitomate®, Biospot® and Gold Bordo® was higher than mycelial growth inhibition for Pseudocercospora vitis 04-152. The results suggest that the different types of environment-friendly farm materials are needed for different disease control in organic grape farm. Five environment-friendly farm materials including Chitomate®, Diegyun®, IC-66D®, Gold Bordo®, and Biospot ® were examined for their growth inhibition effect of the 7 fungal pathogens of grape in vitro. Diegyun®, being composed of natural ingredients which are extracted from a plant, was the most effective in suppression of mycelial growth of the fungi. Diegyun® inhibited the mycelial growth of all of fungi over 75% at 2,500 μg·mL−1 on potato dextrose agar(PDA) except Colletotrichum gloeosporioides 04-159. Growth inhibition effect of Chitomate®, being composed of the chitosan, varied depending on the fungal pathogens on PDA. It inhibited the mycelial growth of the Botrytis cinerea 06-063 at the rate of 75.8% at 40,000 μg·mL−1 on PDA while it inhibited the mycelial growth of the C. gloeosporioides 04-159 at the rate of 6.5%. IC-66D® and Gold Bordo® are two different formula of the Bordeaux mixture, showed different control effects on mycelial growth inhibition. Except of Acremonium sp. the growth inhibition of IC-66D® was a little higher than Gold Bordo®. Biospot®, a chlorine formula, showed the strongest growth inhibition on C. gloeosporioides 04-159 among the farm materials used. Inhibition of spore germination of Chitomate®, Biospot® and Gold Bordo® was higher than mycelial growth inhibition for Pseudocercospora vitis 04-152. The results suggest that the different types of environment-friendly farm materials are needed for different disease control in organic grape farm.
차재순,기운계,조백호,김기청 한국응용곤충학회 1980 한국응용곤충학회지 Vol.19 No.4
Recently, a powdery mildew on the leaves of Capsium spp., Pimento and pepper, occurred greatly in the vinyl-house at Seungchon area, Chonnam province. According to the field survey, the disease is severe at high temperature and high humidity conditions in the vinyl house. Diseased loaves were severely fallen and remained only several top leaves, thus the setting and thickening of fruits were greatly depressed. The pathogenic fungus was identified as Oidiopsis taurica(Lev.) Arn., imperfect stage of Leveillula taurica (Lev.) Arn., The perfect stage of fungus was not observed. Optimum temperatures for conidial germination ranged at with high humidity. 최근 전남 광산군 일원의 비닐하우스 고추 재배단지에 흰가루병이 많이 발생하고 있어 포장 조사 결과 병은 고온 다습상태하에서 발생이 많다. 이병엽은 대부분 떨어지고 위에 몇잎만 남아 착과나 수량을 저하시킨다. 병원균은 Oidiopsis taurica (Lev.) Sal.로 동정되었으며 분생포자 발아적온은 다습상태하에서 의 범위였다.