Efficacies of Common Ready to Use Insecticides against Halyomorpha halys (Hemiptera: Pentatomidae)
Keywords:
ready-to-use, brown marmorated stink bug, insecticide efficacy, IPMAbstract
Efficacies of topical applications and dry residues of 9 common ready-to-use (RTU) insecticides were evaluated against brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) at intervals of exposure of 1 and 48 h. Permethrin and acetamiprid, were further evaluated to determine if H. halys recovered after an initial exposure. Topical applications of carbaryl, permethrin, insecticidal soap, petroleum oil, and acetamiprid, and residues of permethrin and acetamiprid increased mortality of adults. Topical applications of spinosad, essential oils, carbaryl, permethrin, insecticidal soap, petroleum oil, and acetamiprid, and residues of carbaryl, permethrin, and acetamiprid increased mortality of nymphs. Topical applications of carbaryl, neem oil, insecticidal soap, and acetamiprid increased egg mortality. In general, nymphs were more susceptible to insecticides than adults. Adult H. halys recovered after exposure to topical applications, but not dry residues of permethrin. Clearly, several RTU insecticides in the marketplace demonstrated potential to help gardeners manage H. halys.
La efectividad de aplicaciones topicalas y residuos de 9 insecticidas comunes listos para usar disponibles en el mercado, fueron evaluados para controlar el chinche hediondo marrón mármol, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) a intervalos de exposición de 1 y 48 h. Permethrin y acetamiprid, fueron adicionalmente evaluados para determinar si H. halys se recobrava después de la exposición inicial. Aplicaciones topicalas de aspersiones de carbaryl, permethrin, jabones insecticidas, aceites de petrolio, y acetamiprid, y residuos de permethrin y acetamiprid, aumentaron significativamente la mortalidad de adultos comparados con los adultos tratados solo con agua destilada. Las aplicaciones topicala de aspersiones de spinosad, aceites esenciales, carbaryl, permethrin, jabones insecticidas, aceite de petrolio, y acetamiprid, y residuos de carbaryl, permethrin, y acetamiprid aumentaron significativamente la mortalidad de ninfas comparados con ninfas tratadas solamente con agua destilada. Las aspersiones aplicadas topicalamente y la exposición a residuos secos causó una mayor mortalidad de ninfas en comparación a los adultos. Las aplicaciones topicalas de aspersiones de carbaryl, aceite de neem, jabones insecticidas, y acetamiprid aumentaron significativamente la mortalidad de huevos. Los adultos de H. halys se recobraron después de ser expuestos a aspersiones topicalas, pero no a residuos secos de permethrin. Los adultos que invernaron fueron más suceptibles a los insecticidas que los adultos recién emergidos. Es evidente, que varios insecticidas ‘listos para usar’ disponibles comercialmente demostraron potencial para ayudar a los agricultores orgánicos a controlar H. halys.
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