Unverified88% confidenceFactTime unknown
硅藻土通过物理磨损破坏虫体外壳脱水致死,起效慢(24-72小时),且必须保持干燥,环境潮湿或宠物舔舐后失效
1
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88%
Confidence
Long-term
Relevance
-
First Seen
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Unverified硅藻土等物理性粉剂持效时间短(干燥环境7-14天,遇水/潮湿即失效需补撒),化学成分粉剂(如含氟虫腈)可持效3-4周,环境驱虫选化学类更省事83% similarUnverified硅藻土类地毯粉需在地毯上停留2-48小时才能有效脱水杀死跳蚤及虫卵,若产品说明标注'即撒即吸'(<30分钟)则杀虫效果存疑81% similarUnverified硅藻土起效需24-72小时(依赖脱水过程),跳蚤爆发严重需24小时内见效时,应选含灭幼脲类(甲氧普林/IGR)的化学粉剂快速控制,硅藻土仅适合预防和轻中度80% similarUnverified食品级硅藻土残留可安全存留数周直至清扫,无需频繁补撒;而化学杀虫粉多数有效期在使用后2-4周内衰减,需按说明周期补施79% similarUnverified宣称'物理杀螨/破坏螨虫外壳'的产品多含硅藻土或表面活性剂,无化学残留但持续期短(约7-15天),需每周补喷;化学菊酯类持续期可达1-3个月79% similar
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