油菜菌核病是南方油菜籽产地为害油菜生产的主要病害。发病地区常年受害减产10～20%,严重发病时减产50%以上,甚至毁产。这是一种曾被认为无药可治的病害。近年来,虽然找到了一、两种有防治效力的药剂,但是,防治效果尚不够理想。为了寻找更好的农药新品种,在全国农药大田试验、示范计划的统一安排下,从国外引进一批新品种杀菌剂,由湖北、江苏、上海、湖南等省、市进行大田药效试验、示范,一致认为“二氯苯基二甲(口恶)唑烷二酮”是目前防治油菜菌核病最有效的杀菌剂。根据这种药剂防治菌核病的特点,定名为“菌核利”。 Sclerotinia sclerotiorum is the main disease of rapeseed production in southern China. The incidence of perennial victims of cut 10 to 20%, a serious incidence of more than 50% cut, or even ruin. This is a disease that has been considered as no cure. In recent years, although one or two agents have been found to have effectiveness in prevention and treatment, the control effect is not yet satisfactory. In order to find a better new pesticide variety, a series of new fungicides were introduced from foreign countries under the unified arrangement of national pesticide field trials and demonstration projects. Field efficacy trials were carried out in Hubei, Jiangsu, Shanghai and Hunan provinces, Demonstration, agreed that “Dichlorophenyl dimethyl (ox ezazole dione)” is the most effective fungicide control rape sclerotinia. According to the characteristics of this agent against sclerotinia, named “sclerotiorin.”