| Huoqiu County is at the foot of Dabie Mountains,bordering the Huaihe River,a typical wheat-rice and oil-even as rice,two crops a year of mid-season rice planting season mode.The paper by field survey,combined with historical data,analyzed the Species county rice pests and natural enemies,the dominant populations and infestation law,assembling the integrated control technology developed along the Huaihe River season rice pests.Made the following main results:1.Rice pests were found 20 species belonging to 6 orders,11 families in Huoqiu County;where brown planthopper,white-backed planthopper,stem borer,Borer,leaf roller,rice is the dominant populations of thrips,China Oxya,ruled rice shell insects,rice tube thrips,leafhopper pest is often made;preliminary investigation found that 11 kinds of rice paddies natural enemies of pests on rice pests have some natural control.2.Showing an overall rice pests Huoqiu County middle light occur in2014.Planthoppers overall light occurs,4(2)on behalf of the light occurs,5(3)on behalf of the lighter part of the township occurred;medinalis generations of light occurs;stem borer overall medium occurs,the second generation,third generation place emphasis.3.50% pymetrozine WP has a good hold on planthoppers effectiveness and efficiency at all for the amount of reagent,14 d of the control efficiency of more than 90%;6% Avi chlorobenzene acid suspension of rice vertical pyralid has good control effect,hold long onset time,at each supply amounts of reagents,24 d of the control efficiency of more than 90%;10% Avi flutolanil SC30 ml / 667m2 for stem borer control effect,white ear prevention rate reached 68.96 percent,the residual pest control efficacy reached 83.32%;above formulations are natural enemies of rice and security.4.County(Yanhuai season Indica rice)rice pests should adhere to the "overall focus paddy ecosystem-based management in agricultural cultivation,protection and utilization of natural enemies,to play as much as possible. |
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