Buffer Zones for Non-Target Organisms by Aerial Pesticide Application Around Rice Paddy

벼 재배지의 항공 방제시 비표적 생물에 대한 안전거리

  • Park, Yeon-Ki (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Jin, Yeoung-Duck (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Kim, Byung-Seok (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Park, Kyung-Hun (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Lee, Jea-Bong (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Shin, Jin-Sup (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Bae, Chung-Han (Agricultural Research Center, Hankooksamgong Co., Ltd.) ;
  • Lee, Kyu-Seung (Chungnam National University)
  • 박연기 (농업과학기술원 농산물안전성부) ;
  • 진용덕 (농업과학기술원 농산물안전성부) ;
  • 김병석 (농업과학기술원 농산물안전성부) ;
  • 박경훈 (농업과학기술원 농산물안전성부) ;
  • 이제봉 (농업과학기술원 농산물안전성부) ;
  • 신진섭 (농업과학기술원 농산물안전성부) ;
  • 배철한 (한국삼공(주) 농업연구소) ;
  • 이규승 (충남대학교)
  • Published : 2007.03.30

Abstract

The study was carried out to establish buffer zone for the protection of the non-target organisms by aerial pesticide application. The two pesticide combination of 3-way tank-mixing of three pesticides for aerial application, ferimzone tricyclazole SC + BPMC EC + validamycin-A SL and hexaconzole EC + isoprothiolane EC+phenthoate EC were selected for the simultaneous control of key pests on paddy rice as blast, sheath blight, brown planthopper and moth. Aquatic organisms including killifish and loach in the paddy field and nearby water reservoirs were not affected by aerial application of the pesticides. However, all the water flea were killed, when they were exposed 10 m from the aerially sprayed site, while the water flea exposed in 30 m away from the site were not affected. Honeybees within 50 m in the wind direction and 20 m in the opposite wind direction showed a mortality of $7{\sim}100%$. Residues concentration of the pesticides in paddy water were not detectable level after six days from aerial application. Drifting distance of aerially sprayed droplet from the target area was within 30 m in the wind direction and 20 m in the opposite direction. Consequently, it was the buffer zones in the aerial pesticides application for the protection of the non-target organisms should be at least 50 m for aquatic organisms and 100 m for honeybees.

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