《Table 5 Comparison of rice yield under different control kg/hm2methods》

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《稻螟赤眼蜂生物防治水稻主要害虫的研究（英文）》

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According to Table 5，compared with the blank control，the rice yields of the treatments with measures taken to prevent and control the pests were significantly improved；among them，the yield of the T1 was the highest，with an average of 6 010.5 kg/hm2and a yield increase by 30.4%over the CK；followed by the T2，the average yield was 5 829 kg/hm2，26.5%higher than the CK.The difference between T3 and T2 was very small，at 115.5kg/hm2，the yield of the T3was 24%higher than that of the CK.This showed that，under the premise of not applying chemical pesticides，the parasitism of Trichogramma japonicum could effectively control the pests Chilo suppressalis and Cnaphalocrocis medinalis，and reduce the yield loss caused by the disease and insect pest.