Repellency and Perception of Moving Air by the German Cockroach (Dictyoptera: Blattellidae)

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Abstract:

A modified Ebeling choice box was designed to evaluate the repellency of Moving ambient air to German cockroaches, Blattella germanica (L.), determine how German Cockroach detect moving air, and evaluate the potential of moving air to change the distribution pattern of German cockroach populations. The modified choice box tested the repellency of moving air relative to light. All stages (adult male, adult gravid and nongravid female, and small/medium and large nymphs) were significantly repelled by air velocities ≥2.0 m/s, and percentage of repellency increased linearly with air velocity between 0.75 and 4.0 m/s. German cockroaches detect moving air with their antennae using mechanoreceptors. Application of moving air in simulated kitchen cabinets changed significantly the distribution pattern of mixed-stage groups of German cockroaches. Moving air, at relatively low velocities, could be a useful as a noninsecticidal tactic in integrated pest management system for German cockroach control.

Document Type: Research Article

Publication date: April 1, 1997

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