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本文系统论述了我省粮食作物上的主要生物灾害发生现状儿８０年代以后为害加重。分析了病虫种群变动与猖獗的主要原因有：耕作制度和种植业结构的变动、品种因素、栽培条件的影响以及植保体系不健全等。并有针对性地提出了加强植保工作的若干建议：健全植保体系，加强植保研究，调整作物和品种布局，合理论肥、改善土壤营养，逐步发展集中、统一、规模经营，统筹实施植保措施，促进我省粮食生产。
This article systematically discusses the status quo of major biological disasters on grain crops in our province after the 1980s. The main reasons for the change and rampant of pest population were analyzed: the changes of farming system and planting structure, the factors of variety, the influence of cultivation conditions and the imperfection of plant protection system. And put forward some proposals to strengthen the plant protection work in a targeted manner: improve the plant protection system, strengthen plant protection research, adjust the layout of crops and varieties, rationally study the fertilizer, improve soil nutrition, and gradually develop centralized, unified and scale management, Promote grain production in our province.