植物保护
植物保護
식물보호
PLANT PROTECTION
2014年
5期
100-105
,共6页
刘艳萍%王思威%刘丰茂%孙海滨
劉豔萍%王思威%劉豐茂%孫海濱
류염평%왕사위%류봉무%손해빈
戊唑醇%氟环唑%苯醚甲环唑%丙环唑%香蕉%残留行为
戊唑醇%氟環唑%苯醚甲環唑%丙環唑%香蕉%殘留行為
무서순%불배서%분미갑배서%병배서%향초%잔류행위
tebuconazole%epoxiconazole%difenoconazole%propiconazole%banana%dissipation and residue behaviour
采用田间试验研究了戊唑醇、氟环唑、苯醚甲环唑、丙环唑等4种常用三唑类杀菌剂在香蕉上的残留行为,并比较了戊唑醇在套袋与不套袋情况下的最终残留量。研究结果表明:香蕉上戊唑醇、氟环唑、苯醚甲环唑、丙环唑的降解半衰期分别为10.8~14.1、8.1~9.5、7.9~12.9、9.4~15.6 d。在试验剂量条件下,末次施药后42 d 时,戊唑醇(不套袋)、戊唑醇(套袋)、氟环唑、苯醚甲环唑、丙环唑在蕉肉中的残留量分别为:0.01~0.04、<0.01、0.01~0.08、≤0.01 mg/kg 和0.02~0.07 mg/kg;在全蕉上的残留量分别为0.05~0.47、<0.01、0.10~0.36、0.03~0.19 mg/kg和0.05~0.32 mg/kg。香蕉果肉占全果的比例约为55%~75%,全果的残留量约为果肉2~19倍,表明香蕉中戊唑醇、氟环唑、苯醚甲环唑、丙环唑主要残存在果皮上。戊唑醇防治香蕉叶斑病,在套袋情况下可以显著地减少其在收获期香蕉上的残留。
採用田間試驗研究瞭戊唑醇、氟環唑、苯醚甲環唑、丙環唑等4種常用三唑類殺菌劑在香蕉上的殘留行為,併比較瞭戊唑醇在套袋與不套袋情況下的最終殘留量。研究結果錶明:香蕉上戊唑醇、氟環唑、苯醚甲環唑、丙環唑的降解半衰期分彆為10.8~14.1、8.1~9.5、7.9~12.9、9.4~15.6 d。在試驗劑量條件下,末次施藥後42 d 時,戊唑醇(不套袋)、戊唑醇(套袋)、氟環唑、苯醚甲環唑、丙環唑在蕉肉中的殘留量分彆為:0.01~0.04、<0.01、0.01~0.08、≤0.01 mg/kg 和0.02~0.07 mg/kg;在全蕉上的殘留量分彆為0.05~0.47、<0.01、0.10~0.36、0.03~0.19 mg/kg和0.05~0.32 mg/kg。香蕉果肉佔全果的比例約為55%~75%,全果的殘留量約為果肉2~19倍,錶明香蕉中戊唑醇、氟環唑、苯醚甲環唑、丙環唑主要殘存在果皮上。戊唑醇防治香蕉葉斑病,在套袋情況下可以顯著地減少其在收穫期香蕉上的殘留。
채용전간시험연구료무서순、불배서、분미갑배서、병배서등4충상용삼서류살균제재향초상적잔류행위,병비교료무서순재투대여불투대정황하적최종잔류량。연구결과표명:향초상무서순、불배서、분미갑배서、병배서적강해반쇠기분별위10.8~14.1、8.1~9.5、7.9~12.9、9.4~15.6 d。재시험제량조건하,말차시약후42 d 시,무서순(불투대)、무서순(투대)、불배서、분미갑배서、병배서재초육중적잔류량분별위:0.01~0.04、<0.01、0.01~0.08、≤0.01 mg/kg 화0.02~0.07 mg/kg;재전초상적잔류량분별위0.05~0.47、<0.01、0.10~0.36、0.03~0.19 mg/kg화0.05~0.32 mg/kg。향초과육점전과적비례약위55%~75%,전과적잔류량약위과육2~19배,표명향초중무서순、불배서、분미갑배서、병배서주요잔존재과피상。무서순방치향초협반병,재투대정황하가이현저지감소기재수획기향초상적잔류。
The residue behaviour of four commonly used triazole fungicides (tebuconazole,epoxiconazole,difeno-conazole and propiconazole )in bananas under field conditions was studied,and the effect of bagging technology on the terminal residue in bananas was also evaluated.The results showed that half-lives of tebuconazole,epoxi-conazole,difenoconazole and propiconazole in bananas were 10.8-14.1 d,8.1 -9.5 d,7.9-12.9 d and 9.4-15.6 d,respectively.The terminal residues of tebuconazole,tebuconazole (bagging treatment),epoxiconazole, difenoconazole and propiconazole were 0.01-0.04,<0.01,0.01-0.08,≤0.01 mg/kg and 0.02-0.07 mg/kg in flesh,respectively,and 0.05-0.47,<0.01,0.10-0.36,0.03-0.19 mg/kg and 0.05-0.32 mg/kg in the whole banana,respectively.The ratio of flesh to the whole banana was 55 % to 75 %,and the concentration of pesticides in whole banana was two to nineteen times of that in flesh.The results indicated that most residue of tebucon-azole,epoxiconazole,difenoconazole and propiconazole were concentrated in peels.Bagging treatment could significantly reduce the residue of tebuconazole in bananas when applied to prevent and control leaf spot of banana.