It is generally assumed that the toxicity of pyrethroid insecticides to birds is negligible, though few species have been tested. The oral acute toxicity of formulated beta-cyfluthrin was determined for canaries (Serinus sp.), shiny cowbirds (Molothrus bonariensis), and eared doves (Zenaida auriculata). Single doses were administered to adults by gavage. Approximate lethal doses 50 (LD(50)) and...

Cynoff 25ULV (cypermethrin 25 g/l) and Solfac UL015 (cyfluthrin 1.5% w/v) were evaluated against the sentinel sugar-fed adults and 4th-instar larvae of Aedes aegypti in a housing estate endemic of dengue in Malaysia. The impact of both pyrethroids on field populations of Aedes albopictus and Aedes aegypti larvae was monitored weekly using bottle containers. Both Cynoff 25ULV and Solfac UL015 sh...

evaluated under laboratory condition. the objective of the present study was to observe the effect of impregnated torn bednets on the number of bites by an. culicifacies a glass made tunnel test was designed to the effect of torn bednets treated with three dosages of cyfluthrin 5% ew, were induce hungry female mosquitoes to pass through holes cut in the pyrethroid treated nets. a guinea pig use...

Timothy is grown as a high value forage crop in California. Thrips (Anaphothrips obscurus Müller) have recently been implicated causing damage by increasing the quantity of brown leaves and lowering the value of this crop. Minimal studies have explored the relation of thrips levels to yield and damage in timothy and management options for this pest are extremely limited. We performed studies in...

An irrigation runoff study on a residential lawn was conducted in California, northeast of Sacramento, during the summer and fall of 2008 to investigate the contribution of turf uses of pyrethroids to residues in Californian urban creek sediments. This study examined how over irrigation (i.e., irrigation that produces runoff) in the summer season may transport recently applied pyrethroids. The ...

The QuEChERS analytical method in combination with GC and LC-MS/MS was validated to quantify the insecticide residues immature kernel, mature cashew apple field soil. performance satisfactory LOQ, recovery RSD values. Residue persistence of betacyfluthrin imidacloprid on carried out after foliar spray formulation, 90 g -1 + 210 OD (Solomon) at recommended (2.5 ml 10 -1) double (5 doses. were be...

The aim of the present study was to evaluate occurrence and environmental partition urban pesticides dependence these compounds on physicochemical properties sediment water Ceará River (fluvial mangrove regions) located tropical coast northeast Brazil. Surface were collected from each site. Dissolved oxygen, pH, temperature, conductivity, depth, turbidity, salinity measured in situ. Bifenthrin,...

The susceptibility of Culex quinquefasciatus to chemical insecticides in two field sites in Kuala Lumpur was evaluated using the WHO standard susceptibility test. Less then 7days old female mosquitos, reared from wild caught females were exposed to discriminating dosages of insecticides at recommended exposure periods. The larval bioassay were conducted using the multiple concentrations and the...