四种杀虫剂LC25对Q型烟粉虱成虫取食行为的影响

何云川,王新谱,洪波,张婷婷,周雪飞,贾彦霞

Effects of Four Insecticides LC25 on Feeding Behavior of Q-Type Bemisia tabaci Adults

HE YunChuan,WANG XinPu,HONG Bo,ZHANG TingTing,ZHOU XueFei,JIA YanXia

表3 4种杀虫剂LC25浓度下烟粉虱成虫取食韧皮部的EPG参数（总记录时间为8 h）

Table 3 EPG parameters of B. tabaci adults feeding on phloem at LC25 concentrations of four insecticides (total recording time is 8 h)

取食参数 Feeding parameter E1波的次数 Number of E1 E1波的总持续时间 Total duration of E1 (min) E1波占总的E波 的时间 Contribution of E1 to phloem phase (%) E2波的次数 Number of E2 E2波的总持续时间 Total duration of E2 (min) 第一次韧皮部持续时间 Duration of 1st E (min) E2波持续次数 （超过10 min） Number of sustained E2 (longer than 10 min) 第一次刺探至第一次到达E波的时间 Time from 1st probe to 1st E (min) 对照Control 5.73±0.75a 20.52±5.26a 26.88±6.63b 5.13±0.71a 59.60±10.72a 24.19±7.30a 1.47±0.29a 118.39±19.51b 吡虫啉Imidacloprid 3.50±0.59b 0.81±0.25c 19.92±5.34b 3.14±0.55b 5.60±2.63c 0.64±0.14b 0.14±0.1b 130.31±44.94b 吡蚜酮Pymetrozine 3.33±1.01b 15.88±3.87ab 56.48±7.09a 2.40±0.63bc 21.32±6.70bc 12.00±5.17ab 0.73±0.25b 172.99±43.22ab 螺虫乙酯Spirotetramat 2.60±0.51b 24.77±7.20a 48.39±5.43a 2.20±0.39bc 24.62±5.52b 20.18±6.22a 0.73±0.18b 142.01±38.20ab 溴氰虫酰胺Cyantraniliprole 1.60±0.43b 5.57±1.99bc 45.70±7.87a 1.53±0.38c 9.20±3.92bc 10.75±3.88ab 0.33±0.19b 252.32±49.25a F值 F value 4.915 4.939 5.674 6.442 10.535 2.772 5.622 1.789 P值 P value 0.0015 0.0015 0.0006 0.0002 0.0001 0.0354 0.0006 0.1391