Construction and application of a green pest management technical system for wheat stripe rust caused by Puccinia striiformis f.sp.tritici in China
Wheat stripe rust caused by Puccinia striiformis f.sp.tritici is a major disease posing a threat to wheat production across China's wheat production regions.Since 1949,substantial advancements have been made in the research and management of wheat stripe rust in China,resulting in a significant reduction in its prevalence,occurrence area,and frequency of epidemics.However,the emergence of new virulent races and abnormal climate factors,in recent years,has led to new changes in epidemic patterns and disaster mechanisms,posing severe threat to wheat production and national food security.Based on the latest research results related to the emergence of new virulent races,sexual reproduction,infection cycle,and large regional epidemic patterns of wheat stripe rust in China since the"12th Five-Year Plan",this study,on the basis of learning and practicing the past disease management experience,adheres to the guiding ideology of combining short-term and long-term measures,addressing both symptoms and root causes,zoning management,and comprehensive prevention and control,formulates prevention and control strategy termed"green prevention and control as a basis,whole-cycle management as a focus,and cross-regional joint prevention and control as a guarantee"proposes key technologies such as accurate monitoring and prediction,monitoring variation of virulent races,early source control,rational distribution of disease-resistant varieties,and emergency prevention and control,integrates and builds a cross-regional whole-cycle green prevention and control technology system in zonal areas,including the oversummering and variable area,winter reproduction area(overwintering area),and spring epidemic area.Through large-scale trials and demonstrations in the major epidemic areas of wheat stripe rust,the proposed strategy has achieved significant results with control effect exceeding 85％,pesticide usage reduced by over 10％,and the wheat yield per unit area increased by more than 5％.Following extensive promotion and application across the main wheat-producing areas of the country in 2022-2023,the severe epidemic trend of wheat stripe rust has been effectively controlled,epidemic area has reached a new low,disaster losses have been reduced,and national food security has been guaranteed.
万方数据
维普
