Seasonal fluctuation of Carboxylesterase activity in field collected populations of the green peach aphid

Carboxyl Esterase의 활성측정에 의한 복숭아혹진딧물, Myzus persicae S.의 살충제포장저항성도의 계절적변동

  • ;
  • ;
  • Naoki Motoyama (Laboratory of Pesticide Toxicology, Faculty of Hoticulture, Chiba University, Japan)
  • 송승석 (국립농업자재검사소 생물검사과) ;
  • 오홍규 (국립농업자재검사소 생물검사과) ;
  • Published : 1993.09.01

Abstract

The fluctuation of insecticide resistance in the green peach aphid (GPA) in fields was investigated by caboxy1 esterase (CE) activity index analysis. Of the GP A Populations occurred on the red pepper seedlings, aphids in the untreaLed and treaLed with acephate plots showed 40 and 78 resistance percent (RP), respectively. Aphids in the untreated kale field showed the RP value 24 in July, contrast to 83 in October. Mean RPs of aphids from 18 localities were 50 + 14 in summer and B2+ 10 in late fall, indicating a seasonal fluctuation of Lhe CE activity.