Maize rough dwarf disease Integrated Control Technology
|School||China Agricultural University|
|Keywords||Maize rough dwarf disease Small brown planthopper Comprehensive prevention and control|
Corn virus disease is important diseases in corn production , Zhaoyuan increasing year on year since 1989 , mainly maize rough dwarf disease virus disease occurs , occurs by local block spread corn on a universal diseases. Large area survey of 2003 , according to Plant Protection Station of Zhaoyuan maize rough dwarf disease Tian rate up to 83.6% and of which spring maize disease fields up to 100% , The Catcher interplanting corn disease Tian was 88.6% , to live corn disease Tian rate 33.3% , acres cut , usually in about 15-20% of the more serious plots cut 40-50 % incidence of serious plots never produced . Conventional the Seed Coating seed dressing against seedling ground maize rough dwarf disease comprehensive prevention and control technology research \2003-2005 three years of efforts , the investigation and the occurrence of maize rough dwarf disease field , distribution scope and morbidity trends , determine maize rough dwarf disease field diseased plants was more than 5% , the impact on corn yield reached a significant level indicators , to provide a basis for the guidance of Daejeon prevention . Rough dwarf disease prevention corn seed dressing based on small brown planthopper corn seedling spraying control virus transmission technology roadmap focused on , as the future Daejeon comprehensive prevention technology measures . Cover bell corn seed the amount of 0.4 % of seed corn leaf period 1500 times 5% imidacloprid net EC spray screened control effect good 5% imidacloprid EC and 5% Shennong Dan granules acres medication 2.5kg sowing trefoil stage spraying control striatellus comprehensive anti - technology portfolio . The test confirmed the two combinations in maize rough dwarf seriously ill control efficiency up to 80 % of the development zone , mu yield of 150 kg or more , income 160 yuan ; demonstration area up to 90 percent control efficiency . Mu yield of 110 kg , with good results in income of 120 yuan .