نتایج جستجو برای: classical insecticides
تعداد نتایج: 200889 فیلتر نتایج به سال:
The dynamics of genetic variation in susceptibility to insecticides within a natural population of Drosophila melanogaster (Meigen) at Katsunuma (Yamanashi Prefecture, Japan) was examined. Two resistance factors for three organophosphate insecticides (OPs), a resistant-type acetylcholinesterase (AChE) and a cytochrome P450 monooxygenase (cytochrome P450), have already been suggested to be invol...
Defining the molecular targets of insecticides is crucial for assessing their selectivity and potential impact on environment and health. Two commercial insecticides are now shown to target a transient receptor potential (TRP) ion channel complex that is unique to insect stretch receptor cells. Pymetrozine and pyrifluquinazon disturbed Drosophila coordination and hearing by acting on chordotona...
Chemical insecticides provide many benefits to food production and human health and has proven very effective at increasing agriculture and forestry productivities. However, they also pose some hazards as contamination of water and food sources, poisoning of non-target fauna and flora, concentration in the food chain and selection of insect pest populations resistent to the chemical insecticide...
Sodium channel blocker insecticides (SCBIs) are a relatively new class of insecticides, with a mechanism of action different from those of other classes of insecticides that target voltage-gated sodium channels. These compounds have no effect at hyperpolarized membrane potentials, but cause a voltage-dependent, nearly irreversible block as the membrane potential is depolarized. The mechanism of...
continuous and excessive use of organophosphorus compounds has led to thecontamination of water and soil ecosystems. the degradation of organophosphorusinsecticides, chlorpyrifos, chlorpyrifos- methyl, cyanophos and malathion in mineral saltsmedia were studied. the effect of additional biofertilizers, singly or combined withorganic amendments, on chlorpyrifos and cyanophos degrading activity in...
b a ckground: the present study was designed to investigate the insecticidal efficacy of four different classes of in-secticides: pyrethroids, organophosphates, phenyl-pyrazoles and neo-nicotenoids. one representative chemical from each class was selected to compare the toxicity: deltamethrin from pyrethroids, dichlorovinyl dimethyl phosphate (ddvp) from organophosphates, fipronil from phenyl-p...
background: the cutaneous leishmaniasis (cl) has been occurred in dehbakri county, located 46 km of bam district, kerman province since 2004–2005. phlebotomus papatasi is an important vector of zoonotic cutaneous leishmanisis (zcl) as well as sand fly fever and p. sergenti is considered as main vector of anthroponotic cutaneous leishmaniasis (acl) in iran. there are several measures for vector...
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