Scarabs (Coleoptera: Scarabaeidae) in Sweet Persimmon Orchard and Effect on Sweet Persimmon

단감원 풍뎅이의 종류와 단감에 미치는 영향

  • 이동운 (경상대학교 농업생명과학연구원) ;
  • 이규철 (경상대학교 농과대학 식물자원환경학부) ;
  • 박정규 (경상대학교 농과대학 식물자원환경학부) ;
  • 추호렬 (경상대학교 농업생명과학연구원, 경상대학교 응용생명과학부) ;
  • 김영섭 (상주대학교 잠사곤충자원학과)
  • Published : 2002.09.01

Abstract

Occurrence of scarabs at sweet persimmon (Diospyros kaki var. Fuyu) orchards was investigated by mercury light traps every one week interval in several areas in Gyeongnam province including, Jinju, Sacheon, Sancheong, and Gimhae, from April to September in 2000 and 2001. In addition, damage of persimmon by scarabs was observed every ten days interval at three orchards in Jinju and at one in Gimhae from late May to late October. Although sixteen species of 12 genera were attracted to the traps, species and number of catches were different according to orchards and years. Holotrichia morosa was most dominant in Jinju, Sacheon, and Sancheong. Total number of scarabs attracted to the traps was highest at the orchard surrounded by chestnut orchards in Sancheong. Fruits of sweet persimmon were not damaged by scarabs at the studied orchards. However, leaves and calyxes were slightly damaged by Adoretus tenuimaculatus. Maximum average numbers of the damaged leaves and calyxes throughout the year by A. tenuimaculatus were 0.33 leaves from 10 new shoots and 0.07 calyxes from 15 fruits. Gametis jucunda and Popillia mutans damaged flowers and calyxes. Maximum average numbers of damaged flowers and calyxes by these 2 species were the same as 0.03 from 15 flowers and 15 calyxes, respectively. These levels of damage suggest that the scarabs are not economically injurious to sweet persimmon fruits in Korea.

Keywords

Sweet persimmon;Scarabs;Adoretus tenuimaculatus;Gametis jucunda;Popillia mutans

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