3％灰霉净烟剂防治保护地蔬菜灰霉病研究

烟雾剂以其不增加保护地内湿度,防治时间不受阴雨限制,防效高为特点而广为应用,目前我国烟剂品种少,防治灰霉病的烟剂更少,为此研制防治蔬菜灰霉病的新型烟剂非常必要。通过1991－1998年的研究,研制出主要防治番茄,韭菜,菜豆灰霉病的杰霉净烟剂,用量150g/667m^2,据河北省唐山,廊坊、保定、秦皇岛、石家庄以及辽宁,天津等省市38个县区1993－1998年试验和1400hm2示范,平均防治效果达90％以上。新研制的灰霉净烟剂,为保护地蔬菜灰霉病防治增添了农药新剂型。

Study on Huimeijing Smoke Agent for Controlling Vegetable Gray Mold Diseases in Greenhouse

Smoke agents are very popular with vegetable farmers because of no increasing humidity in greenhouse after applying them, applying time being free from weather conditions and high work efficiency. At present, the number of varieties of smoke agents as a whole in China is quite small, Let alone smoke agents for controlling vegetable gray mold diseases, and resistance of diseases to a smoke agent can be built up if it is used for along time without substitutes, so it is necessary to develop new kinds of smoke agents for controlling gray mold diseases. By the research work of from 1991 to 1998, we produced Huimeijing(mixture of thiabendazole and N - 3, 5 - dichlorophenylsuccinimide) smoke agent, whose major targets were tomato gray mold, Chinese chives gray mold and beau gray mold. From 1993 to 1998, it was tested and used for demonstrations in 38 counties and districts of Tangshan, Langfang, Baoding, Qnhuangdao, Shiiashuang, Hebei Province and Liaoning Province, Tianjin City. ete. Applied at the rate of 250 - 300g per 667m2, the total area of tests and demonstrations amounted to 1400ha, the average control effect came to higher than 90%. Newly developed Huimeijing smoke agent would contribute to more effectively controlling vegetable gray mold diseases in greenhouse.