Unverified80% confidenceDecision RuleTime unknown
板面粘满虫体或落尘覆盖60%以上时诱捕效率骤降，需及时更换，不能等到完全无处可粘再换，一般户外2-3周、室内1个月检查一次
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80%
Confidence
Long-term
Relevance
-
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Unverified粘虫板需在诱捕面被虫体覆盖约60%以上或胶面积灰失黏时更换，通常室内环境2-4周一换，虫量大时1周内即需更换84% similarUnverified粘板需定期更换，粘满或落灰后粘性下降，建议爆发期3-5天检查一次、平时监测期每2周检查，否则失去捕捉效果沦为摆设81% similarUnverified粘胶持效期与灰尘和虫量正相关消耗：多尘环境或高虫口区约7-15天需更换，洁净温室可维持25-40天，标称'持效3个月'多指粘胶未被覆盖前提下81% similarUnverified粘虫板的粘性会因灰尘、湿度和虫尸覆盖逐渐失效，室内环境一般2-4周需更换，粘满或表面结灰即失效，非按颜色褪色判断80% similarUnverified粘性持久与灰尘失效的矛盾：胶越强初期诱捕越好，但灰尘、落叶碎屑覆盖后胶面失效更快。室外多尘环境应缩短更换周期至2-3周，不能只看标称'可用2个月'78% similar
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