Antifungal activity of pesticides to control dry rot and blue mold during garlic storage

마늘 저장 중 마름썩음병과 푸른곰팡이병 억제를 위한 농약의 살균활성

  • You, Oh-Jong (Department of Crop Life Safety, NIAST, RDA) ;
  • Lee, Yong-Hoon (Plant Pathology Division, NIAST, RDA) ;
  • Jin, Yong-Duk (Department of Crop Life Safety, NIAST, RDA) ;
  • Kim, Jin-Bae (Department of Crop Life Safety, NIAST, RDA) ;
  • Hwang, Se-Gu (Danyang Garlic Experiment Station, Chungbook Agricultural Research and Extension Services) ;
  • Han, Sang-Hyun (Department of Crop Life Safety, NIAST, RDA) ;
  • Kim, Jang-Eok (Division of Applied Biology and Chemistry, Kyungpook National University)
  • 유오종 (농업과학기술원 농산물안전성부) ;
  • 이용훈 (농업과학기술원 농업생물부) ;
  • 진용덕 (농업과학기술원 농산물안전성부) ;
  • 김진배 (농업과학기술원 농산물안전성부) ;
  • 황세구 (충북농업기술원 단양마늘시험장) ;
  • 한상현 (농업과학기술원 농산물안전성부) ;
  • 김장억 (경북대학교)
  • Published : 2007.12.30


The major fungal diseases which effecting garlic storage are blue mold and dry rot, caused by Penicillium hirsutum and Fusarium oxysporum, respectively. In order to reduce the damage by the pathogenic fungi, here we report the effects of 11 fungicides tested to reduce spoilage during storage of garlics. In the in vitro antimicrobial activity test, the fungicides, diphenylamine, prochloraz and tebuconazole showed 0.3, 2.2, and 1.3 nun inhibition zone to F. oxysporium, and cyprodinil, diphenylamine, fenbuconazole, hexaconazole, penconazole, prochloraz, propiconazole, pyrimethanil and tebuconazole exhibited 0.2, 2.4, 0.8, 0.4, 1.2, 1.5, 1.2, 0.4 and 1.5 mm to P. hirsutum, respectively. To test the in vivo control effect, when the diphenylamine, prochloraz, and tebuconazole were treated by standard concentration, the fungal mycelium of F. oxysporium started to grow 5 days after inoculation, and 80, 63.3 and 83.3% of the inoculated cloves are infected 11 days after inoculation. When the tebuconazole were treated by standard concentration, the P. hirsutum was completely inhibited the growth of the fungi. In case of diphenylamine, penconazole and propiconazole treatment, the P. hirsutum was observed 7 days after inoculation and $20{\sim}23.3%$ of the cloves were infected 11 days after inoculation. When cyprodinil, prochloraz and pyrimethanil were treated, pathogens occurred 5 days after inoculation and $60{\sim}100%$ of the cloves infected 11 days after inoculation. Three fungicides such as diphenylamine, prochloraz and tebuconazole also suppressed remarkably the infection and growth of F. oxysporium and P. hirsutum on garlic when both of the pathogens are inoculated after the garlic cloves were dipped for 10 min in the suspension of each agrochemical. Overall, diphenylamine, prochloraz and tebuconazole showed effective control efficacy on dry rot and blue mold There was significant correlation between in vitro and in vivo assay in diphenylamine and prochloraz to F. oxysporum and cyprodinil, prochloraz and pyrimethanil to P. hirsutum.


Blue mold rot;Dry rot;Fusarium oxysporum;Penicillium hirsutum;Diphenylamine;Prochloraz;pyrimethanil;Tebuconazole;Thiabendazole


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