Abstract: Studies indicate that the disease is caused by a virus pathogen.The visions arc spherical shaped and enwrapped with double--layer capsule."I'he winter wheat plants with“dark-green dwarf" sy mptom and those stunted plants dou-ble-infected with GVheat Rosette Stunt Virus(WRSV) and MRDV are the ini-tial source of inoculum."I'he planthopper(Laodelphax Striatallus Fallen)is the vector of this visa:and the adul1 cf it:first er.eration is the main agent for distribution of this·irus causing dan;age to corn.The disease index caused by this virus varies greatly with the time of infection in respect to the grow-th stages of corn.1'he disease index is 55.0-67 for 9%seven leaves and a whorl,whorl stage and:y for eight Ica:and a whorl,id still copped to 2.8% for eleven or twelve leaves.The integrated program control is pried mainly on the rearrai:gctncnt of planting clai‘:and measures, such as WRSV disease prevention for demir:;shing-the source of inoculum,plan-ting tolerant cnlti、acs,eradication of[!isc sed >c,.dlinvs,favorable cultural practices and chemical control."I"he large de;;;on:tration area of.33ha has proved this integrated program to be effecti:e.The contrast is sharp.The per-ccntage of diseased plant is depressed from. 58.3% to 15.0% and the disease index from 29.6% to 4.4-5.3% cornparin; to the pre、ions culttmc nontreated. The comparison to the neighbouring fielc?:in the sane year non-treated shows that the percentage of diseased plant ana the disease index are depre>sed by 78.19%and 77.9% respecti、ely.

Key words: Maze, Rough dwarf virus disease, Occurrence pattern, Disease conteol