二年生草木樨生长好坏,对水稻产量关系很大。草木樨种子又是扩大绿肥栽培的来源。因此,在推广草木樨种植上,除了研究草木樨保苗、越冬、栽培方法外,调查危害草木樨的主要病虫害及共防治方法也很重要。自治区国营连湖农场1959年由于草木樨象(虫甲)猖狂危害留子草木樨的花、嫩种子,致使当年种子减产2～5成。1965年该虫又大量发生,取食越冬后尚未出土的草木樨幼嫩生长点。每株虫口密度达到5～37头,被害率95.3%,被害面积1,500余亩,因而推迟了草木樨的返青期,并影响了产草量。经过两年多的调查,在连湖农场范围内,发现有如下几种草木樨病虫害。一病虫害种类病害:白粉病、锈病、花叶病、花期枯死。虫害:草木樨象(虫甲)、豆银纹夜蛾、蒙古拟地(虫甲)、苜蓿盲蝽象、绿盲蝽象、蚜虫、地老虎。二发生和危害在病害中白粉病危害较严重,在条件合适年分发病率一般在15～42.5%(指全部叶 Perennial biennial growth is good, a great relationship between the yield of rice. Grass seeds are another source of green manure cultivation. Therefore, it is also important to investigate the main pests, diseases and insect pests that harm the plant diseases and insect pests and prevent and control them. In 1959, even the state-owned Lianhu Farm ruled out the loss of seeds and seeds by 20% to 50% due to the frenzied damage to the flowers and tender seeds of the herbaceous plants and plants caused by the grasses and weeds. In 1965 the worm occurred in large quantities, feeding after the winter has not yet been unearthed of young plants growing point. Each insect population density of 5 to 37 head, the rate of 95.3% victimization, the victim area of ​​more than 1,500 acres, thus postponing the rejuvenation period and affect the grass yield. After more than two years of investigation, within the scope of Lianhu Farm, the following plants and pests were found. Diseases and pests species diseases: powdery mildew, rust, mosaic disease, flowering dead. Pests: Aster (Asteraceae), Beans, Spodoptera, Mongolia to the ground (insect), alfalfa stinkbug, green bug, aphids, to the tiger. Occurrence and hazards of powdery mildew in the disease more serious harm, in the condition of the appropriate annual incidence of 15 ~ 42.5% (referring to all the leaves