流沙灌洞灭家鼠研究

Studies on Elimination of House Rodents by Blocking the Rat Burrows with Quicksand

本文首次报道了以流沙土灌洞灭家鼠的试验研究。作者于1990年7月及11月,在山东省德州地区农村住宅内进行了现场试验。具体方法是,先用长1米左右的常用塑包铝质电线,尽量插到洞的深部,然后用勺向鼠洞内灌干燥、纯净的流沙土,边灌边抖动电线,直至将洞灌满后把电线抽出。对210个被盗开的褐家鼠洞灌沙72小时后观察,仅有4个平洞被盗开,且未发现新盗开的洞口。两次试验以堵洞盗开法计算灭鼠率,分别为97.70%和99.16%;以格粉板法计算灭鼠率,分别为76.55%和85.24%。作者认为,有流沙的地区可就地取材,不用花钱即可随时灭鼠,因而具有较大的推广使用价值。

Experimental studies on elimination of house rodents by blocking the rat's burrows with quicksand is reported for the first time. The experiments were done inside the country houses in Qingyun and wuoneng counties of Dezhou Prefecture in July and November, 1990 respectively.The metnod was to extend a piece of plastics coated aluminium electric wire into the rats' burrows as deep as possible before pouring dry quicksand into the burrows with a spoon and, when the sand stopped flowing, quiver the wire to facilitate the sand flow. The wire was pulled out after the burrow was full with sand.Observations on 210 sand-blocked Rattus norvigicus burrows for 72 hours revealed very few reexcavated level burrows. No new excavated burrows were found. Calculated from the number of sandblocked burrows, the elimination rate in two studies was 97.70 and 99.16% respevtively. Owing to the drop-out blocking of the burrows and the interference of the new comers, the elimination rate measured with the powder-spot method at the same time was relatively lower, the corrected rate was 76.55 and 85.24% respectively. We believe that in areas where wuicksand is Eavailable, rodent elimination can be obtained by anyone at any time.