摘要
不同生境调查和灭鼠结果表明:城镇住宅区害鼠栖息面有限,投毒饵覆盖率易于提高,防效达95％以上时,六个月回升率仅31.14％,种群数量当年不易恢复,每年防治一次即可。农村住宅区鼠栖息面广,应扩大投药面,形成保护圈。当灭效低于90％时(85％),种群数量恢复比城镇快5倍以上。但由于秋收影响,每年也只宜春季防治一次。山坡旱地害鼠种类多,分布广,密度大,而投药面不可能无限宽。因而灭后种群数量恢复快,可在春、秋两季播种前各进行一次,以耕地为中心,设保护区,重点防治。
In vestigation on the different ecological environment and the results of killiag rat were showed as follow. In the urban area, the habitant area of rat is limited, so that extending of the covering rate of poison bait is easy. When the control efficiency reaches over 95%, the picking up rate of rat only 31.14% after 6 months.It is possible to control once a year.flowever in the rural area the resident area is wide. It is necessary to extend the range of throwing in the poison bait. When the control efficiency is below 90% (85%), the quantity of the rat colony in the rural area pick up rapidly over 5 times than that in the urban area. In the hillside and upland area, control before sowing in Spring and Autumn respectively should be carried out with the protection centre of cultivated land because the rat species is various and densely populated and widely distributed.
出处
《贵州农业科学》
CAS
1991年第1期35-38,共4页
Guizhou Agricultural Sciences
关键词
灭鼠
毒铒
覆盖硕
防治
间隔期
rat destruction
cover of poison bait
control interval
