Effect of different insecticides on sucking behavior of Empoasca onukii Matsuda
Empoasca onukii Matsuda is one of the main pests in tea garden.In order to screen out the insecticides with less dosage and better effect for comprehensive control of E.onukii,in this study,6 single and 6 mixed agents were selected,each single agent was set with 5 concentration gradients,and each mixed agent's configuration ratio was set with 3 treatment concentrations,and electrical penetration graph (EPG) technique was used to analyze the sucking behavior of E.onukii.The results showed that the order of effect of single agent was as follows∶sulfoxaflor 22％ SC>afidopyropen 50 g·L-1 DC>imidacloprid 70％ WG>flonicamid 10％ WG>lambda-cyhalothrin 25 g·L-1 EC>thiamethoxam 30％ SC.The effects of different proportions of the mixture were different,and the mixture of thiamethoxam 30％ SC+afidopyropen 50 g·L-1 DC had a greater effect on the feeding waveform of E.onukii,the mixture of thiamethoxam 30％ SC+imidacloprid 70％ WG had little effect on the feeding waveform of E.onukii.The sucking times,the total duration of sucking and E wave duration in mixture treatment were all lower than that of every single agent treatment.The results showed that the influence of mixed agents on sucking behaviors was better than single agent,and it could be used for controlling E.onukii in tea garden.
万方数据
维普
