The granary weevil, Sitophilus granarius (L.), is considered a serious pest in stored grain worldwide. As residual-based protection possibilities become scarcer, the development of eco-friendly control technologies that can be implemented practice becoming urgent. In this spirit, our objective was to assess effectiveness different levels atmospheric cooling against S. under laboratory condition...

Flour mill fumigations are currently carried out with methyl bromide (MB). By 2005, this gas will be phased out in developed countries because it has been listed under the Montreal Protocol as a substance that depletes the ozone layer. Hydrogen cyanide (HCN) was used as the fumigant of choice for mills in the first part of the last century, and was then replaced by MB. Consequently, it should n...

The boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), is a serious pest of cultivated cotton, Gossypium hirsutum L., in the Americas, and reinfestation of zones from which they have been eradicated is of perpetual concern. Extensive arrays of pheromone traps monitor for reintroductions, but occasionally the traps collect nontarget weevils that can be misidentified by ...

The imported longhorned weevil, Calomycterus setarius Roelofs, is an occasional pest of soybean, Glycine max (L.), and can cause substantial defoliation of seedling soybean when the weevil is present in large numbers. Because weevil populations can reach high levels, the potential exists for significant seedling injury, so economic injury levels (EILs) are needed for imported longhorned weevil ...

The boll weevil,Anthonomus grandis grandisBoheman (Coleoptera: Curculionidae), is a serious pest of cultivated cotton,Gossypium hirsutum L., in the Americas, and reinfestation of zones from which they have been eradicated is of perpetual concern. Extensive arrays of pheromone traps monitor for reintroductions, but occasionally the traps collect nontarget weevils that can be misidentiÞed by scou...

The pheromonitoring of pest insects population was carried out in the granary conditions. results let us detect insect’s location at lowest abundance, while visual inspections are not effective, and to determine data effective granary, proportions traps pheromone preparative dose. aggregation synthetic analogue Sitophilus weevils had been out, according general procedure for preparation aldol p...

The southeastern boll weevil, the Mexican boll weevil, and the thurberia weevil are considered to be morphologically similar but behaviorally different variants of the same species, Anthonomus grandis Boheman. A polymerase chain reaction (PCR)-ampliÞed 9.2-kb section of the mitochondrial DNA was cleaved with restriction enzymes. RFLPs of weevils from three cotton growing locations in Texas and ...

A new species of Meira Jacquelin du Val from Island of Elba, M. tedeschii sp. n., is described. Some taxonomically important characters, which allow for the separation of this new taxon from other closely related species, are illustrated.