Effect of Different Insecticides on the Control of Oryza sativa Chilo suppressalis
In order to investigate the effect of different insecticides on the control of Oryza sativa Chilo suppressalis,three kinds of insecticides were set up in Qiyang City as the test site.Three concentrations gradients were set for each treatment group and a blank control group was set up to compare the effect of different insecticides on the control of Oryza sativa Chilo suppressalis.The results showed that treatment group B(10％metrelbeetle hydrazine SC,250 mL/hm2)had the best control effect on the Oryza sativa Chilo suppressalis,and the control effect and dry heart rate of 14 days after application were 83.54％and 4.82％,respectively.The plant height,ear length,thousand grain weight and yield of rice were 85.34 cm,21.36 cm,27.82 g and 6 898.54 kg/hm2.
万方数据
维普
