Abstract:

Objective To observe the deratization effects of acute and chronic bait poisons applied in bait boxes on rodent, particularly Mus musculus and Rattus norvegicus. Methods On-the-spot test was carried out in West Caishi Village, Licheng district, Jinan city. One bait box, containing 0.5% gophacide and 0.05% sodium diphacinone wheat granules of 50 g in the acute poisoning group or 100 g in the chronic group, was placed in each room. Each group included 90 households for effect assessment using the S100 grill powder-track method. Results For the acute poisoning group, at day 5, 10, 15 and 20, the overall deratization rates were 77.54%, 82.36%, 88.50% and 93.78%, respectively; the killing rates on M. musculus were 76.81%, 82.83%, 88.92% and 94.14%, respectively, and on R. norvegicus 100%, 68.29%, 75.61% and 80.49%, respectively. As to the chronic bait group, at day 10, 20, 30 and 60, the overall deratization rates were 90.93%, 93.17%, 98.11% and 98.28% respectively; the killing rates on M. musculus were 91.12%, 93.24%, 98.18% and 98.24%, respectively and on R. norvegicus 80.95%, 92.86%, 95.24% and 100%. The overall deratization effect at day 10 in the chronic group was better than that of the acute group (u=11.43, P<0.01). Conclusion Chronic anticoagulant baits applied in bait boxes were significantly effective in rodent control.

Key words: Triangular poison bait box, Rodents, Diphacine-Na, Gophacide

摘要：

目的 观察在毒饵盒中投放急慢性毒饵灭家栖鼠类及对小家鼠和褐家鼠的灭鼠效果。方法 选择济南市历城区西彩石村，每间房间布放毒饵盒1个，内放0.5%毒鼠磷和0.05%敌鼠钠整粒小麦。急性药剂毒饵盒放50 g，慢性药剂毒饵盒放100 g，每组90户；效果考核S100格法。结果 急性药剂毒饵盒5、10、15、20 d总灭鼠率分别为77.54%、82.36%、88.50%和93.78%；针对小家鼠灭效分别为76.81%、82.83%、88.92%和94.14%，褐家鼠灭效分别为100%、68.29%、75.61%和80.49%。慢性药剂毒饵盒10、20、30、60 d总灭鼠率分别为90.93%、93.17%、98.11%和98.28%；针对小家鼠灭效分别为91.12%、93.24%、98.18%和98.24%，对褐家鼠灭效分别为80.95%、92.86%、95.24%和100%。慢性药剂毒饵盒第10天总灭鼠效果优于急性药剂毒饵盒(u=11.43，P<0.01)。结论 慢性抗凝血灭鼠剂毒饵盒灭鼠效果显著。

关键词: 三角形毒饵盒, 家栖性鼠类, 敌鼠钠, 毒鼠磷