نتایج جستجو برای: propoxur

تعداد نتایج: 213  

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2000
J J van de Sandt W J Meuling G R Elliott N H Cnubben B C Hakkert

In vitro and in vivo skin absorption of the pesticide propoxur (2-isopropoxyphenyl N-methyl carbamate, commercially Baygon(TM) and Unden (TM); log Po/w 1.56, MW 209.2) was investigated. In vivo studies were performed in rats and human volunteers, applying the test compound to the dorsal skin and the volar aspect of the forearm, respectively. In vitro experiments were carried out in static diffu...

2017
Azab Elsayed Azab Aziza A. El-Shafey Ibrahim Elsayed

Propoxur is a non-systemic insecticide which was introduced in 1959. It is used against mosquitoes in outdoor areas, against flies in agricultural settings, against fleas and ticks on pets, as an acaricide, on lawns and turf for ants, on flowering plants, and in private dwellings and public buildings. However, nontarget organisms such as honey bees, birds and fish have sensitive toxicity respon...

2010
K. Qian XQ. Wei XP. Zeng T. Liu XW. Gao

tage-dependent dichlorvos and propoxur tolerance in a field population of the German cockroach, Blattella germanica Linnaeus (Blatodea: Blattellidae), was investigated in the laboratory using a topical application bioassay. The results showed the 6 week-old nymphs were more tolerant to dichlorvos and propoxur than the other ages tested. LD₅₀ values of dichlorvos and propoxur for the 6 week-old ...

Journal: :Journal of economic entomology 1992
B D Siegfried J G Scott

We have identified resistance mechanisms in the German cockroach, Blattella germanica (L.), for propoxur and chlorpyrifos in strains of cockroaches that display multiresistance to several organophosphate and carbamate insecticides. The resistance mechanisms involve the combined effects of increased oxidative and hydrolytic metabolism and both strains are resistant to chlorpyrifos and propoxur. ...

Journal: :Environmental Health Perspectives 2003
Robin M Whyatt Dana B Barr David E Camann Patrick L Kinney John R Barr Howard F Andrews Lori A Hoepner Robin Garfinkel Yair Hazi Andria Reyes Judyth Ramirez Yesenia Cosme Frederica P Perera

We have measured 29 pesticides in plasma samples collected at birth between 1998 and 2001 from 230 mother and newborn pairs enrolled in the Columbia Center for Children's Environmental Health prospective cohort study. Our prior research has shown widespread pesticide use during pregnancy among this urban minority cohort from New York City. We also measured eight pesticides in 48-hr personal air...

2011
Muhammad Asam Riaz Stéphane Reynaud James Devillers Vincent Corbel Laurence Després Patrick Ravanel Stephane Reynaud

The effect of exposure of Aedes aegypti larvae for 72h to sub-lethal concentrations of the herbicide glyphosate and the polycyclic aromatic hydrocarbon benzo[a]pyrene on their subsequent tolerance to the chemical insecticides imidacloprid, permethrin and propoxur, detoxification enzyme activities and transcription of detoxification genes was investigated. Bioassays revealed a significant increa...

Journal: :Science 1978
J A Seawright P E Kaiser D A Dame C S Lofgren

Recent field experiments demonstrated the possibility of using the sterile male method for the control of Anopheles albimanus Wiedemann, the most important vector of human malaria in Central America. Until now there was no practical method for excluding females from the releases of sterile males. A genetic method was developed for the preferential elimination of females during any of the four l...

Journal: :The American journal of tropical medicine and hygiene 2005
Cedric Pennetier Vincent Corbel Jean-Marc Hougard

Although pyrethroid-treated materials are a promising tool for the prevention and the control of dengue in the tropics, the development of pyrethroid resistance in the main mosquito vector (Aedes aegypti) may negate their use for personal and/or community protection. In that context, the efficacy of a mixture of a repellent (N,N-diethyl toluamide [DEET]) and a non-pyrethroid insecticide (propox...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2004
Abburi Hemasundaram Nutalapati Venkatasubba Naidu

A simple spectrophotometric method for the determination of propoxur, a widely used insecticide, in various environmental samples and pesticide formulations is described. The method is based on the coupling of the hydrolysis product of propoxur with diazotized 3-aminopyridine in an alkaline medium, to form an azo-dye which has a maximum absorbance at 463 nm. Beer's law is obeyed over the concen...

Journal: :Journal of vector borne diseases 2010
V K Agrawal Ashok Agarwal Varsha Choudhary Rajiv Singh Nadeem Ahmed Mahender Sharma Kusum Narula Pooja Agrawal

BACKGROUND & OBJECTIVES Resistance amongst cockroaches has been reported to most of the spray insecticides apart from the problem of food contamination and inconvenience. Gel baits which can be selectively applied have been found effective in control of cockroaches in laboratory studies but very few field studies are available. This trial was planned to evaluate the efficacy of fipronil (0.01%)...

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