We measured airborne exposures to the biological insecticide Bacillus thuringiensis var. kurstaki (Btk) during an aerial spray program to eradicate gypsy moths on the west coast of Canada. We aimed to determine whether staying indoors during spraying reduced exposures, to determine the rate of temporal decay of airborne concentrations, and to determine whether drift occurred outside the spray z...

The results of evaluation plant oils (neem oil, colocynth oil and castor oil) Actara, crusier bactericide B. thuringiensis var kurstaki showed their compatibility with the phases field insect after three months treatment where one oil+ bacteria thuringiesis + crusier) these treatments proved its success less ratios infection in plants Sesamia cretica Led reached 8.89%. (colocynth (watering Acta...

Bacillus thuringiensis (Bt) produces Cry toxins against pest insects. proteins are conformed by domains related to pore formation and recognition of protein receptors. Plant-induced systemic resistance (ISR) is triggered due attack, it could be activated sp. Tecia solanivora (Ts) a potato pest, susceptible Cry1Ac Cry1B proteins. This paper indicates the endorsement Bt kurstaki HD-1 (BtkHD1) in ...

Genes of Bacillus thuringiensis var. kurstaki (Berliner) that encode lepidopteran-specific toxins were engineered into maize for protection against the European Corn Borer, Ostrinia nubilalis (Hbn.). Recent data suggest that Lepidoptera may be negatively affected, if maize pollen contains high amounts of Bt toxin and is diposited on host plants near maize fields. Monitoring the environmental ef...

BACKGROUND In order to increase our knowledge on the susceptibility of entomopathogenic nematode (EPN) species to agrochemicals, the compatibility of the infective juveniles (IJs) of the EPN (Steinernema and Heterorhabditis) with eight chemical and bio-insecticides was investigated under laboratory conditions. The effect of direct IJ exposure to insecticides for 6 and 24 h was tested in a Petri...