Occurrence and Control Test of Pesticide on Rice Leafhopper in Rice Heading Stage

After the rice into the heading in 2013，Nephotettix cincticeps（Uhier）gathered harm together on the rice ears in part of the rice fields，and the serious phenomenon was‘black ears’.According to preliminary investigation and field experiment，results showed that the rice grain weight reduced by 5%~10% than the healthy-ear grain，and with the‘black’degree aggravating loss increases.Dinotefuran，Nitenpyram-Buprofezin，Nitenpyram，Thiamethoxam and Imidacloprid could be used to control the rice leafhoppers.