congresos y reuniones científicas
Insecticidal activity of a novel insecticide, nanostructured alumina, on stored grain pests
BUTELER, M.; STADLER, T.; D. K. WEAVER
San Diego California
Conferencia; reunion 58 de la sociedad entomologica de Estados Unidos; 2010
Sociedad Entomologica de Estados Unidos
There is much interest in alternatives to conventional insecticides for controlling stored-product insects because of the loss of registered insecticides due to stringent regulations, exponentially increasing costs, and the increased occurrence of insecticide resistance, as well due to consumer demand for product that is free of insects and insecticide residues. Inorganic insecticidal dusts (inert dusts) are environmentally friendly alternatives for insect pests of field crops, stored products, and animals. They are chemically stable, highly persistent and have low mammalian toxicity. The action of these insecticidal dusts is inversely related to the size of the particles and ambient humidity, given that their mode of action is associated with the absorption of cuticle waxes leading to desiccation. Recently, a novel type of particulate material, nanostructured alumina (NSA), characterized by particles of 40-60çm, has been found to induce mortality in insects exposed to treated wheat treated, at rates comparable to those recommended for commercially available dusts. More detailed studies are needed to determine the efficacy of NSA under varying ambient conditions, to further understand its mode of action and how it compares with that of other inert dusts. Moreover, studies are needed to determine its potential as an insect pest management tool. Objective: This study aimed to study the toxicity of nanostructured alumina on adults of Sitophilus oryzae (L.) (Coleoptera: Curculionidae), major pests of stored grain, as well as its effect on progeny production, at different ambient humidities.