摘要
Maize rough dwarf disease is a common epidemic disease in large areas.Its epidemic and occurrence mechanism is a complex process.In this paper,the epidemiological characteristics and influencing factors of maize rough dwarf disease in Huang-Huai-Hai plain were elaborated based on the research results of maize rough dwarf disease at home and abroad for many years.The epidemic of maize rough dwarf disease is affected by many factors,such as the occurrence and virus carrying rate of the first generation small brown planthopper,accumulation of virus sources on gramineous crops and weed hosts,maize variety resistance,maize sowing date,maize growth period,crop layout,tillage system,climate and ecological environment.The key factors causing the outbreak and epidemic of maize rough dwarf disease are the planting of maize susceptible varieties,the meeting of maize seedling stage and the peak period of adult spread of the first generation of small brown planthopper.
Maize rough dwarf disease is a common epidemic disease in large areas. Its epidemic and occurrence mechanism is a complex process. In this paper, the epidemiological characteristics and influencing factors of maize rough dwarf disease in Huang-Huai-Hai plain were elaborated based on the research results of maize rough dwarf disease at home and abroad for many years. The epidemic of maize rough dwarf disease is affected by many factors, such as the occurrence and virus carrying rate of the first generation small brown planthopper, accumulation of virus sources on gramineous crops and weed hosts, maize variety resistance, maize sowing date, maize growth period, crop layout, tillage system, climate and ecological environment. The key factors causing the outbreak and epidemic of maize rough dwarf disease are the planting of maize susceptible varieties, the meeting of maize seedling stage and the peak period of adult spread of the first generation of small brown planthopper.
基金
Supported by the National Key Research and Development Program of China(2018YFD0200603)
the Key Research and Development Program of Shandong Province(2018GSF121029)
the Innovation Project for Agricultural Sciences of Shandong Academy of Agricultural Sciences(CXGC2016B11-Green Control)
