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通过中稻主要病虫害的防治试验,结果表明,在病虫害偏重发生年份,在病虫害基本控制的常规防治区稻谷单产达611.2kg/667m2情况下,完全未打药防治区病虫为害损失稻谷245.4kg/667m2,损失率40.15%。单种病虫不防治区,稻飞虱、纹枯病、稻纵卷叶螟、螟虫未防治的损失率分别为28.88%、27.49%、15.31%和7.33%。由此可见,在水稻生产中,加强病虫害监测,科学指导农民防治病虫害,是减少粮食损失,增加农民收入的有效途径。
Through the prevention and control of the main diseases and insect pests in middle rice, the results showed that in perennial diseases with pests and diseases pest damage, pests and diseases in the areas without control of pests completely lost 245.4kg / 667m2 under the condition of 611.2kg / 667m2 of paddy yield in conventional pest control areas, The loss rate is 40.15%. The loss rates of non-control pests and diseases without control of planthoppers, rice planthoppers, sheath blight, leaf roller and stem borers were 28.88%, 27.49%, 15.31% and 7.33%, respectively. Thus, in rice production, strengthening pest and disease monitoring and scientifically guiding peasants in pest and disease control are effective ways to reduce food losses and increase peasants’ income.