Evaluation of some adhesives for collecting Musca domestica and Chrysomya megacephala adults or mosquito larvae in sticky traps

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Abstract
1. Seven types of water‐insoluble adhesives were evaluated in sticky traps for collecting adults of Musca domestica L. and Chrysomya megacephala (Fabricius) or mosquito larvae (Aed.es aegypti (L.) and Culex quinquefasciatus Say).2. Adhesive viscosity affected the tackiness of the glues and this determined their trapping efficiency in air or water.3. From the ‘Hyvis’ range of adhesives tested, ‘Hyvis 200’ was most effective for trapping adult flies.4. With 24 h exposure to fourth instar Ae.aegypti larvae in tapwater, submerged plates coated with ‘Hyvis 10’, ‘Hyvis 30’ or ‘Hyvis 200’ formulations trapped the majority of larvae. In polluted water the highest rates of trapping were 17.3% of Ae. aegypti and 18.7% of Cx quinquefasciatus with ‘Hyvis 200’. Floating traps were consistently less productive than submerged traps under laboratory conditions.5. In a heavily polluted natural breeding‐site of Cx quinquefasciatus, floating traps were more productive than submerged sticky traps with four of seven adhesives tested, the most efficient being ‘Hyvis 200’ (4.2 mosquitoes per hour) and Hyvis:polyethylene 90:10 (4.5/h). Despite the relative inefficiency of aquatic traps, emergent adults, pupae and second to fourth instars of larvae were collected quickly from the habitat.