Research in Plant Disease 2008;14(3):187-192.
Published online December 30, 2008.
친환경농자재의 포도 진균병 병원균에 대한 생장억제 효과
김건주, 최민경, 박종한, 차재순
 
Growth Inhibition Effect of Environment-friendly Farm Materials on Fungal Pathogens of Grape
Geon Ju Kim, Min Kyung Choi, Jong Han Park, Jae Soon Cha
Abstract
Five environment-friendly farm materials including Chitomate(R), Diegyun(R), IC-66D(R), Gold Bordo(R), and Biospot (R) were examined for their growth inhibition effect of the 7 fungal pathogens of grape in vitro. Diegyun(R), being composed of natural ingredients which are extracted from a plant, was the most effective in suppression of mycelial growth of the fungi. Diegyun(R) 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(R), 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(R) and Gold Bordo(R) 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(R) was a little higher than Gold Bordo(R). Biospot(R), a chlorine formula, showed the strongest growth inhibition on C. gloeosporioides 04-159 among the farm materials used. Inhibition of spore germination of Chitomate(R), Biospot(R) and Gold Bordo(R) 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.
Key Words: Environment-friendly farm materials, Fungal pathogen, Grape disease, Growth inhibition effect


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