不同饵料放置方式对岩松鼠核桃危害的防治试验

Study on the Position of Bait Based on the Preventive Effect to Sciurotamias davidianus of Walnut Detriment

2020年7月—9月,在南江县开展了岩松鼠核桃危害防治效果试验。针对研究区域岩松鼠活动行为特征,通过不同放置方式的毒饵取食情况比较、核桃落果统计和防治前后岩松鼠数量调查等方法,得出最佳防治方式。结果显示:1.挂箱中取食毒饵数量总体大于堆箱;2.挂箱和堆箱样地中的咬痕果占比不存在差异,均显著低于对照样地中咬痕果占比。3.通过防治可使核桃损失率从11.90%降至1.09%;4.在防治后的放置鼠铗样方中未捕获到岩松鼠。

From July to September in 2020,the control effect of rock squirrel on walnut was carried out in Nanjiang County.Based on the activity and behavior characteristics of rock squirrels in the study area,the best control method was obtained through the comparison of the feeding situation of poison bait with different placement methods,the statistics of walnut fruit drop and the investigation of the number of rock squirrels before and after the control.The results showed that:(1)The number of poison baits in the hanging boxes was larger than that in the stacking boxes;(2)There was no difference in the proportion of bite mark fruits in the sample plots of hanging boxes and stacking boxes,which were significantly lower than that in the control plots.(3)The loss rate of walnut could be reduced from 11.90%to 1.09%through prevention and control;(4)No rock squirrels were captured in the rat clip sample after prevention and control.