在农业病虫害突变规律的研究基础上，建立了定性与定量的尖角突变模型，确定了各病虫的突变区域。
According to the catastrophe rule of pest in agriculture the qualitative and quantitative catastrophe model was set up and the sudden change region was determined.
他是生态学、昆虫学、农业病虫害、环境教育、可持续性、生物控制与农业生态学领域国际承认的专家。
He is an internationally recognized expert on ecology, entomology, agricultural pests, environmental education, sustainability, biological control, and agroecology.
农业灾害发生的频率和造成的损失也逐渐加大 目前我国农业病虫害预报工作中存在着很多问题，总体来说科技含量偏低。
Now there are a lot of questions in forecasting the plant diseases and insect pests in our agriculture, the content of the science and technology i.
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