贵州有机烟叶生产中小地老虎生物药剂筛选试验

Screening Test of Biological Medicaments for Control of Agrotis ypsilom in Production of Organic Tobacco Leaves in Guizhou Province

为筛选防治小地老虎的生物制剂产品,采用田间比较鉴定、室内检测分析等方法对处理烟株的抗虫性、烟叶外观和内在质量等进行研究。结果表明:参试的4种生物药剂中,苏云金杆菌对烟叶的外观和内在质量没有负面影响,是当前贵州有机烟生产较为理想的小地老虎生物防治剂。

In order to screen out biological medicaments for the control of Agrotis ypsilom Rottemberg in tobacco field,the resistance to insect,and tobacco leaf appearance and internal quality of tobacco plants,which were treated with various biological medicaments,were studied by using the methods of field identification and laboratory test.The results showed that： among the tested four kinds of biological medicaments,Bacillus thuringiensis was an optimum biological medicament.This medicament had no negative impact on the appearance and internal quality of tobacco leaves,and it was preferably used to control Agrotis ypsilom in the production of organic tobacco leaves in Guizhou at present.