Container aquatic habitats support a specialized community of macroinvertebrates (e.g. mosquitoes) that feed on microbial communities associated with decaying organic matter. These aquatic habitats are often embedded within and around agricultural lands and are frequently exposed to pesticides. We used a microcosm approach to examine the single and combined effects of two herbicides (atrazine, ...

We studied the growth and capacities for pesticides removal of bacterial strains isolated from the Laguna Grande, an oligotrophic lake at the South of Spain (Archidona, Málaga). Strains were isolated from water samples amended with 10 and 50 microg/ml of nine pesticides: organochlorinated insecticides (aldrin and lindane), organophosphorous insecticides (dimetoate, methyl-parathion and methidat...

Modern agriculture depends upon the wide variety of natural and synthetically produced chemicals such insecticides, fungicides, herbicides other pesticides This work studied effect synthetic biological insecticides on microbial population activities in soil samples. The used this study are cypermethrin, chloropyrifos, neem extracts ginger extracts. Bacteria fungi were isolated identified from T...

Bacterial enzymes have been isolated that catalyze the hydrolysis of organophosphate nerve agents with high-rate enhancements and broad substrate specificity. Mutant forms of these enzymes have been constructed through rational redesign of the active-site binding pockets and random mutagenesis to create protein variants that are optimized for the detoxification of agricultural insecticides and ...

Part 1 issued November 1971 PAGE Effects of Organochlorine Insecticides on Bacterial Growth, Respiration and Viability. By P. W. TRUDGILL, R. WIDDUS and J. S. REES The Effects of Technical Chlordane on Energy Metabolism of Bacillus subtilis. By R. WIDDUS, P. W. TRUDGILL and M. J. MALISZEWSJSI The Effects of Technical Chlordane on Growth and Energy Metabolism of Streptococcus faecalis and Mycoba...

One of the most destructive insect species for stored maize is larger grain borer, Prostephanus truncatus. Its control challenging, as it seems to have a natural tolerance active ingredients that are effective other stored-product cause infestations in maize. The objective present study was comparatively evaluate wide range insecticides currently use product protection P. Specifically, three in...

the use of adjuvants enhances the insecticide efficiency and increases the persistence of insecticides. in this study, the effect of adjuvants on the toxicity of chlorpyrifos and cyhalothrin formulations were investigated under laboratory and field conditions. the comparative toxicity of two chlorpyrifos [(48% emulsifiable concentrate (ec)] formulations (dursban and pyrifos el nasr), two cyhalo...

We examined the cytogenetic and genotoxic effects of the neonicotinoid insecticide imidacloprid and the organophosphate insecticide methamidophos, when administered alone or in combination. These insecticides were tested with the bone marrow chromosome aberration assay and micronucleus test in rats and by the bacterial mutation assay (Salmonella/microsome mutagenicity assay). Wistar albino rats...