黑龙江省烟田斑须蝽的发生规律及防治药剂的筛选

Occurring Characteristics of Dolycoris baccarumin Heilongjiang Tobacco Growing Area of China and the Screening Control Pesticides

为了明确黑龙江省烟田斑须蝽的发生规律及主要防治药剂的防治效果,对黑龙江省烟田斑须蝽的发生规律进行了系统调查,对主要防治药剂进行了筛选。结果表明:黑龙江省,烟田斑须蝽在纬度较低的烟区每年发生一代或两代,具体发生代数受当年的天气影响很大,纬度较高的烟区一般为一年一代;在各供试药剂中,防治效果最好的两个药剂是高效氯氟氰菊酯和毒死蜱,末次药后虫口减退率分别为96.64%和92.63%,防治效果分别为97.10%和94.46%,在5%显著水平上,高效氯氟氰菊酯与其它药剂均达到了差异显著性。

In order to determine the occurring characteristics of Dolycoris baccarum in Heilongjiang tobacco growing area and the control efficiency of the main control pesticides,a systemic survey was conducted on the occurring characteristics of Dolycoris baccarum in Heilongjiang tobacco growing area and a screening on the main control pesticides. The results showed that the occurrence of Dolycoris baccarum was one or two generations in low latitude tobacco growing area in Heilongjiang province, while generally one generation in high lati tude tobacco growing area; two pesticides which showed the best control efficiency among the tested pesticides were cyhalothrin and ehlorpyriSos; insects reduce rate and control efficiency aster the last use of pesticide reached 96.64% ,92.63% and 97.10% ,94.46% respectively; Compared with other pesticides,the control efficiency of cyhalothrin showed significant difference on 5% level.