Activity and control effects of insecticides to American serpentine leafminer, Liriomyza trifolii(Diptera: Agromyzidae)

아메리카잎굴파리 (Liriomyza trifolii)에 대한 살충활성과 방제효과

  • Kim, Gil-Hah (Department of Agricultural Biology, Chungbuk National University) ;
  • Lee, Young-Su (Department of Agricultural Biology, Chungbuk National University) ;
  • Park, Sun-Young (Department of Agricultural Biology, Chungbuk National University) ;
  • Park, Yong-Seong (Aventis Crop Science Korea Ltd.) ;
  • Kim, Jeong-Wha (Department of Agricultural Biology, Chungbuk National University)
  • 김길하 (충북대학교 농과대학 농생물학과) ;
  • 이영수 (충북대학교 농과대학 농생물학과) ;
  • 박선영 (충북대학교 농과대학 농생물학과) ;
  • 박용석 (아벤티스크롭사이언스코리아 (주)) ;
  • 김정화 (충북대학교 농과대학 농생물학과)
  • Published : 2001.03.30

Abstract

These studies were carried out to investigate the toxicities of 33 registered insecticide to the American serpentine leafminer, Liriomyza trifolii. Insecticidal activities were evaluated by testing systemic action and residual effect in the laboratory, and control efficacy and phytotoxicity in the greenhouse. All insecticides used in this study did not effect on the egg of L. trifolii, although spinosad showed 70% of egg-hatch suppression. For L. trifolii larvae ($2{\sim}3$ instar), the insecticides with over 95% of insecticidal activity were abamectin, cartap, cyromazine, emamectin benzoate, diflubenzuron + chlorpyrifos. The Insecticide what showed over 90% of insecticidal activity or neonate larvae were abamectin, cartap, emamectin benzoate, diflubenzuron + chlorpyrifos and milbemectin. Only cartap + buprofezin showed over 95% insecticidal activity against L. trifolii pupae. Almost insecticides used in this study little or not effected on the adult of L. trifolii. Emamectin benzoate and milbemectin showed moderate foliar systemic effects on eggs of L. trifolii (53.3, 47.9%, respectively). However, other insecticides showed little systemic effect. For larvae and adults, all insecticides showed low systemic effects. Insecticides with over 90% residual effect for 10 days were abamectin, emamectin benzoate and milbemectin (91.4, 90.4, 91.9%, respectively). In the control efficacy test on L. trifolii 90% of control values were obtained at 14th day after treatment of the insecticides including abamectin, cyromazine, emamectin benzoate and milbemectin. Cartap and cartap + buprofezin showed slight phytotoxicity on kidney bean leaf, however, other insecticides showed no phytotoxic effects. These results indicate that abamectin, emamectin benzoate and milbemectin can be used for tile control of L. trifolii in field.

Keywords

Liriomyza trifolii;systemic effect;residual effect;control efficacy;phytotoxicity