Occurrence and control of postharvest diseases of apple

사과저장병의 발생 및 방제

  • Kim, Yong-Ki (National Institute of Agricultural Science and Technology, RDA) ;
  • Kim, Ryung-Hee (National Institute of Agricultural Science and Technology, RDA) ;
  • Ryu, Jae-Dang (National Institute of Agricultural Science and Technology, RDA) ;
  • Ryu, Jae-Gee (National Institute of Agricultural Science and Technology, RDA) ;
  • Lee, Sang-Yup (National Institute of Agricultural Science and Technology, RDA) ;
  • Choi, Yong-Chul (National Institute of Agricultural Science and Technology, RDA)
  • 김용기 (농업과학기술원 작물보호부 병리과) ;
  • 김령희 (농업과학기술원 작물보호부 병리과) ;
  • 류재당 (농업과학기술원 작물보호부 병리과) ;
  • 류재기 (농업과학기술원 작물보호부 병리과) ;
  • 이상엽 (농업과학기술원 작물보호부 병리과) ;
  • 최용철 (농업과학기술원 작물보호부 병리과)
  • Published : 1998.09.30

Abstract

The occurrence of postharvest disease of apple was surveyed from 1995 to 1997 in the major apple-producing area in Korea. Ten genera including Alternaria spp., Botryosphaeria dothidea, Botrytis cinerea, Fusarium spp., and Penicillium spp. were isolated from the decayed apple fruits. Of these, B. cinerea, Penicillium spp. and Fusarium spp. were frequently isolated and were highly pathogenic to apple fruits. Optimum temperature of mycelial growth for Penicillium spp. ranged from 10 to $30^{\circ}C$ and that of mycelial growth for B. cinerea and Alternaria spp. ranged from 5 to $30^{\circ}C$. Optimum temperature of sporulation of Penicillium spp. and Alternaria spp. ranged $15{\sim}25^{\circ}C$ and $10{\sim}20^{\circ}C$, respectively. Occurrence of postharvest disease of apple increased in neglecting selection of wounded fruits before storing apples. Most of these fungi causing postharvest diseases such as Penicillium spp, Botrytis cinerea and Alternaria spp. were isolated from healthy fruits sampled at apple orchard. These results suggested that posthavest diseases of apple were originated from apple fruits contaminated from apple orchard and occurred during storage. In addition, five fungicides including prochloraz EC, fenari EC, captan WP, benomyl WP and folpet WP suppressed posthavest diseases when they sprayed on apple fruits at 30 days before harvesting.

Keywords

postharvest disease of apple fruit;Penicillium spp;Alternaria spp;Botrytis cinerea;chemical control