Comparative Efficacy of Selected Dust Insecticides for Controlling Cimex lectularius (Hemiptera: Cimicidae)
Autor: | Richard Cooper, Narinderpal Singh, Desen Wang, Changlu Wang, Chen Zha |
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Rok vydání: | 2016 |
Předmět: |
0106 biological sciences
Piperonyl butoxide Bedbugs Insecticides 030231 tropical medicine Cyfluthrin complex mixtures 01 natural sciences Insect Control Toxicology 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Bed bug parasitic diseases Pyrethrin Cimicidae medicine Animals Ecology biology Dust General Medicine medicine.disease biology.organism_classification 010602 entomology Deltamethrin chemistry Insect Science Cimex lectularius |
Zdroj: | Journal of economic entomology. 109(4) |
ISSN: | 1938-291X |
Popis: | Bed bugs, Cimex lectularius L., are one of the most difficult urban pests to control. Pest management professionals rely heavily on insecticide sprays and dusts to control bed bugs. Dust formulations are considered to provide longer residual control than sprays. However, there are no scientific data available on the comparative efficacy of the commonly used insecticide dusts. We evaluated the efficacy of eight insecticide dust products using three exposure methods: 1) brief exposure-bed bugs crossed a 2.54-cm-wide dust-treated band, 2) forced exposure-bed bugs were continuously exposed to a dust-treated substrate, and 3) choice exposure-bed bugs were given a choice to stay on either dust-treated or untreated substrate. The brief exposure method was the most sensitive in detecting the differences among the insecticides. Only CimeXa (silica gel) dust caused 100% mortality from all three exposure methods. Other tested dusts (1% cyfluthrin, 0.05% deltamethrin, 0.075% zeta-cypermethrin + 0.15% piperonyl butoxide, 1% pyrethrins, 1% 2-phenethyl propionate + 0.4% pyrethrin, 0.25% dinotefuran + 95% diatomaceous earth, 100% diatomaceous earth) caused ≤65% mortality in a brief exposure assay. We also evaluated the horizontal transfer effect of the silica gel dust. Silica gel dust-exposed bed bugs transferred the dust horizontally to unexposed bed bugs resulting in 100% mortality at 4:6 donor: recipient ratio and 88.0 ± 5.0% mortality at 1:5 donor: recipient ratio. The results suggest silica gel is the most promising insecticide dust for controlling C. lectularius. |
Databáze: | OpenAIRE |
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