Chlorpyrifos-methyl (CM) is a broad-spectrum organophosphate insecticide, which widely used in pest control. In this research, the isolation, and biochemical molecular identification of bacterial strains obtained from three soils located northeastern Algeria were carried out, as well evaluation their ability to grow presence CM. Out 48 isolates between Gram-negative Gram-positive identified, se...

Vector control programs worldwide are facing the challenge of mosquitoes becoming resistant to available insecticides. Larviciding is a crucial preventative measure for dengue but data on insecticide resistance larval Aedes aegypti in Middle East Region limited. This study assesses susceptibility status Ae. collected from two most important foci Saudi Arabia, Jeddah and Makkah, chemical biologi...

OBJECTIVE To assess household acceptability and perceived side effects of residual indoor pyrethroid (PYR), carbamate and organophosphate insecticides sprayed by annual rotation (ROT), spatial mosaic (MOS), and a single insecticide (DDT or PYR) in communities of the coastal plain of Chiapas, Mexico. MATERIAL AND METHODS A questionnaire to assess the acceptability and perceived side effects of...

BACKGROUND A longitudinal Anopheles gambiae s.l. insecticide resistance monitoring programme was established in four sentinel sites in Chad 2008-2010. When this programme ended, only sporadic bioassays were performed in a small number of sites. METHODS WHO diagnostic dose assays were used to measure the prevalence of insecticide resistance to 0.1% bendiocarb, 4% DDT, 0.05% deltamethrin, 1% fe...

aims: in regard to increasing greenhouse area in iran followed by increased use of pesticides and contaminated crops, this study aimed to determine the frequency and types of consumed pesticides in kashan region, iran, greenhouses. instrument & methods: in this descriptive study in 2011-2012, samples was entered by census method. at the first step, a list of greenhouses was obtained from agricu...

Insecticides from the organophosphate (OP) and pyrethroid (PY) chemical families, have respectively, been in use for 50 and 30 years in West Africa, mainly against agricultural pests, but also against vectors of human disease. The selection pressure, with practically the same molecules year after year (mainly on cotton), has caused insecticide resistance in pest populations such as Bemisia taba...

background: chlorpyrifos is an organophosphate pesticide that elicits broad-spectrum insecticidal activity against a number of important arthropod pests. determining the insecticides’ toxicity to amphibians can give us a better understanding regarding the role of toxicants in amphibian declines. this information would be beneficial to assess their ecological relevance at environmental concentra...

Agricultural workers rely on chemically protective gloves for protection from dermal exposure to insecticides. In Australia the most widely used gloves are manufactured from polyvinyl chloride or nitrile butadiene rubber. During insecticide application splashes and spills frequently occur on the external surfaces of gloves which may compromise the integrity of the membrane. Interaction of two o...

background & aim: organophosphates are frequently used as insecticides in households, in agricultural areas and veterinary, thus posing a risk for accidental dermal exposure or through inhalation. acute organophosphate poisoning causes thousands of human mortalities each year in developing countries.   material & methods: this study carried out to study an antitoxic effect of endemic ir...