2009•Hubei nongye kexueRequires access
Study on Controlling Rice Planthoppers with Several Substituted Pesticides Instead of Highly Toxic Ones
Kaixiong Zhang
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Abstract
Field trials on controlling rice planthoppers with Buprofezin and Chlorpyrifos(3∶1) ,Imidacloprid and Buprofezin(1∶5) ,Imidacloprid and Chlorpyrifos(1∶5) illustrated an effective control efficacy. One day after applying Imidacloprid and Buprofezin(1∶5) as well as Imidacloprid and Chlorpyrifos(1∶5) ,the control efficacy was approximately 80%,which was higher than applying Buprofezin or Chlorpyrifos and similar to applying Imidacloprid,that showed the two mixtures have quick bioactivity.14 days after applying different doses,Imidacloprid and Buprofezin(1∶5) had the longest persistent efficacy period,then Imidacloprid and Chlorpyrifos(1∶5) ,Buprofezin and Chlorpyrifos(3∶1) ,all 3 mixtures was longer than Chlorpyrifos,with 89.13%～95.46% of control efficacy.