盐阜直通式监管点陆路口岸范围内鼠类侵害评估及防制策略研究

Study on rat infestation evaluation and prevention and control strategy at Yanfu direct-pass ground crossing

目的建立适合陆路口岸范围鼠类侵害程度分级方法,并根据指标范围确定灭鼠策略。方法以盐阜直通式监管点外延400m范围内各类型单位室内作为研究对象,目测法检查鼠征房间,分析阳性频度分布趋势,建立鼠类侵害程度指标值。结果根据鼠征阳性率范围均值、离散度及频度分布理论,考虑卫生检疫实践,提出陆路口岸范围类鼠征法侵害程度分级标准:Ⅰ级(不足为害),侵害率0～2%;Ⅱ级(轻度侵害)侵害率2～10%;Ⅲ级(中度侵害),侵害率10%～30%;Ⅳ级(重度侵害);侵害率≥30%以上。结论提出用鼠征法区分陆路口岸范围鼠类侵害程度分级标准,为"区、点、园"范围鼠情防制提供科学依据。

Objective Establish rat infestation grading methods fit ground erossing and make deratization strategy by index range. Methods Investigate various types of indoor units within 400m at Yanfu Direct-Pass Customs Monitoring Spot. Eyeball rat-infested room and analyze its positive frequency distribution tread and establish rat infestation index. Results Given health quarantine practices, propose rat infestation grading standard at ground crossing according to rat positive average, theory of distribution and frequency. Four grade and index were estab- lished： infestation rate of 0-2% is minor, infestation rate of 2-10% is light, infestation rate of 10%-20% is medium and infestation rate above 30% is severe. Conclusion Provide scientific references for rat prevention at ＂district ,spot, yard＂ by establishing rat infestation grading standards.