摘要
本文测定了麦长管蚜及其天敌七星瓢虫对六种菊酯类杀虫剂的敏感性。测定结果表明,山西晋中地区麦长管蚜对菊酯类药剂的敏感性次序为,溴氰菊酯>氯氰菊酯>氰戊菊酯>氟氰戊菊酯>甲氰菊酯>戊菊酯。七星瓢虫幼虫对这六种菊酯类药剂的敏感性次序与麦长管蚜相同。在麦长管蚜和七星瓢虫之间,六种菊酯类药剂的选择性指数以氯氰菊酯最高,依次为溴氰(?)酯、氰戊菊酯、氟氰戊菊酯、甲氰菊酯和戊菊酯。
The sensitivity of S.avenae (Fab.) and C.septempunctata (Linn) to 6 kinds of pyrethroids were tested.The results indicted that the sensitivity order of S.avenae (Fab.) in the middle region of Shanxi province to pyrethroids were Deltamethrin>Cypermethrin>Fenvalevate>Flucythrinate>Fenpropothrin>S5439.The sensitivity order of C.septempunctata (Linn.) to pyrethroids were the same as that of S.avenae (Fab.).But the selective indices of pyrethroids between S.avenae (Fab.) and C.septempunctata (Linn.) were different.The selectivity order from the strongest to the weakest were Cypermethrin, Deltamethrin, Fenvalevate, Flucythrinate, Fenpropothrin and S5439.
关键词
麦长管蚜
七星瓢虫
杀虫剂
敏感性
S. avenae (Fab. )
C. septempunctata (Linn.)
pyrethroids
sensitivity
