黑龙江地区小麦赤霉病新型药剂筛选

Screening of New Type Fungicides Against Wheat Scab in Heilongjiang Province

为了延缓传统药剂抗药性的产生,寻找可交替使用的防治小麦赤霉病的新药剂,2016年在黑龙江省哈尔滨市,采用田间人工接种、喷施药剂的方法进行药剂筛选试验。结果表明:200g·L^(-1)氟唑菌酰羟胺SC和250g·L^(-1)氰烯菌酯SC对小麦赤霉病防治效果较好,且氟唑菌酰羟胺SC增产7.5%,250g·L^(-1)氰烯菌酯SC增产4.2%,综合考虑均可作替代药剂与传统药剂交替使用。另外,无公害药剂6%氨基寡糖素链蛋白WP和6%低聚糖素AS的防效较高,6%氨基寡糖素链蛋白WP增产8.4%,两种药剂均可用于小麦的无公害防治。

The purpose of this experiment is to find a new effective agentia,to reduce and delay the traditional agentia resistance.In Heilongjiang province in 2016,the field test was used artificial inoculation and spraying potions to screening new type fungicides in Heilongjiang.The results showed that the control effect of 200 g·L-1 pydiflumetofen SC and 250 g·L-1 JS399-19 SC were better in controlling wheat scab,the control efficiency were 7.5%and 4.2%,respectively,so they could be used as new type fungicides alternately with the traditional medicine.In addition,6%amino oligosaccharide chain protein WP and 6%oligosaccharide AS also hadcontrol effect,the later one increased yield by 8.4%than CK,theycould be used for the pollution-free agentia to prevent wheat scab.