Agel bait-resistantGerman cockroach,Blattella germanica (L.), strainCincywas collected in Cincinnati, OH. This strain exhibited a high level of behavioral resistance to Avert (0.05% abamectin) and Maxforce FC (0.01% Þpronil) gel baits. Topical application assays indicated moderate levels of physiological resistance of the Cincy strain to abamectin and Þpronil. Resistance ratios (based on LD50 v...

A gel bait-resistant German cockroach, Blattella germanica (L.), strain Cincy was collected in Cincinnati, OH. This strain exhibited a high level of behavioral resistance to Avert (0.05% abamectin) and Maxforce FC (0.01% fipronil) gel baits. Topical application assays indicated moderate levels of physiological resistance of the Cincy strain to abamectin and fipronil. Resistance ratios (based on...

In Benin, cockroaches are infesting urban environments and developing resistance to commonly used insecticides. Therefore, alternative insecticides is important for management. The present study aims test the efficacy of a gel bait formulation-2.15% imidacloprid against common cockroach Periplaneta americana under laboratory field conditions in commune Abomey-Calavi. Dead alive were compared be...

BACKGROUND AND OBJECTIVES Resistance amongst cockroaches has been reported to most of the spray insecticides. Imidacloprid gel baits, which can be selectively applied at the infested and potential harborages sites have been found effective in control of cockroach infestation in some laboratory studies but very few field studies are available. This study was therefore undertaken to evaluate the ...

An experimental 2.15% imidacloprid gel bait containing approximately 44% water was evaluated in laboratory and field studies against the German cockroach, Blattella germanica (L). In continuous exposure tests, toxicity and presumably bait consumption varied with cockroach stage, deprivation of competitive food, and temperature. The LT50 values for cockroaches provided with competitive food rang...

BACKGROUND To compare the effectiveness of 3 commercial gel bait formulations containing fipronil (Goliath(©) Cockroach Gel 0.05% AI), chlorpyrifos-A (Clean Bait(©) Gel, 2% AI), and chloropyrifos-B (Serpa(©) Gel 2% AI) against German cockroaches (Blattella germanica) when stored at 23(°)C and 30(°) C after treatment. METHODS Laboratory bioassays consisted of placing groups of fifteen cockroac...

BACKGROUND & OBJECTIVE In cockroach control, bait formulations are extensively used. Fipronil is one of the broad spectrum insecticides from phenyl pyrazole family available in bait formulation. The compound has been tested under field conditions. However, information on its effectiveness on different surfaces and at various density levels is not known. Therefore, the efficacy of a new formulat...

Plastic bait stations were trialled to assess their usefulness as a rabbit control tool. Non-toxic cereal baits were applied at two 171 ha Mackenzie Basin sites, at one site in stations and at the other site spread directly on the ground. Bait-take at each site was measured. Rhodamine-dyed baits were also used to determine the proportion of rabbits at each site that took bait. Bait-take, and th...