methoprene and phenothrin

methoprene has been researched along with phenothrin* in 2 studies

Other Studies

2 other study(ies) available for methoprene and phenothrin

Article	Year
Insecticide resistance in Culex pipiens from New York. Journal of the American Mosquito Control Association, 2005, Volume: 21, Issue:3 Insecticides are the primary means to control Culex pipiens, an enzootic vector of West Nile virus, in the USA. To better understand how the evolution of resistance might impact control of this insect, we investigated the levels of resistance in populations collected from 2 metropolitan areas (Albany and Syracuse, NY) to 4 larvicides (methoprene, phenothrin, Bacillus sphaericus [Bs], and Bacillus thuringiensis israelensis [Bti]) and 1 adulticide (phenothrin) registered for mosquito control in New York State. High levels of resistance were found only to Bti, and only at 1 site (Syracuse). Resistance levels to the other insecticides were less than 10-fold. Given the large difference in Bti resistance between Syracuse and Albany, it appears these populations of Cx. pipiens do not rapidly mix, leading to localization of resistant populations. Topics: Animals; Bacillus; Bacillus thuringiensis; Culex; Insecticide Resistance; Insecticides; Larva; Methoprene; Mosquito Control; New York; Pest Control, Biological; Pyrethrins	2005
Isocratic reversed-phase liquid chromatographic method for the simultaneous determination of (S)-methoprene, MGK264, piperonyl butoxide, sumithrin and permethrin in pesticide formulation. Journal of chromatography. A, 2003, Jan-03, Volume: 983, Issue:1-2 An isocratic reversed-phase high-performance liquid chromatographic (RP-HPLC) method development for the simultaneous determination of five active ingredients (S)-methoprene, MGK264, PBO, sumithrin and permethrin in a new complex pesticide formulation is described. These active ingredients have similar polarities and contain isomers. The RP-HPLC method development approach began with the selection of a column based on the component structure information, bonded phase, and particle physical characteristics. Second, the mobile phase composition was changed to improve peak resolution and peak sensitivity, especially with analytes containing isomers. Choosing the match between the stationary phase and mobile phase composition, the developed RP-HPLC method not only can simplify the procedure appreciably but also significantly decrease total analysis time and increase peak height. The developed isocratic RP-HPLC method for the analysis of this new formulation was then validated for specificity, linearity, precision, and accuracy. The chromatographic peak identification was identified by LC-MS using the electrospray ionisation in the positive-ion mode. Topics: Chromatography, High Pressure Liquid; Isoindoles; Methoprene; Norbornanes; Permethrin; Pesticides; Piperonyl Butoxide; Pyrethrins; Reproducibility of Results	2003

Article

Year

Insecticide resistance in Culex pipiens from New York.

Journal of the American Mosquito Control Association, 2005, Volume: 21, Issue:3

Insecticides are the primary means to control Culex pipiens, an enzootic vector of West Nile virus, in the USA. To better understand how the evolution of resistance might impact control of this insect, we investigated the levels of resistance in populations collected from 2 metropolitan areas (Albany and Syracuse, NY) to 4 larvicides (methoprene, phenothrin, Bacillus sphaericus [Bs], and Bacillus thuringiensis israelensis [Bti]) and 1 adulticide (phenothrin) registered for mosquito control in New York State. High levels of resistance were found only to Bti, and only at 1 site (Syracuse). Resistance levels to the other insecticides were less than 10-fold. Given the large difference in Bti resistance between Syracuse and Albany, it appears these populations of Cx. pipiens do not rapidly mix, leading to localization of resistant populations.

Topics: Animals; Bacillus; Bacillus thuringiensis; Culex; Insecticide Resistance; Insecticides; Larva; Methoprene; Mosquito Control; New York; Pest Control, Biological; Pyrethrins

2005

Isocratic reversed-phase liquid chromatographic method for the simultaneous determination of (S)-methoprene, MGK264, piperonyl butoxide, sumithrin and permethrin in pesticide formulation.

Journal of chromatography. A, 2003, Jan-03, Volume: 983, Issue:1-2

An isocratic reversed-phase high-performance liquid chromatographic (RP-HPLC) method development for the simultaneous determination of five active ingredients (S)-methoprene, MGK264, PBO, sumithrin and permethrin in a new complex pesticide formulation is described. These active ingredients have similar polarities and contain isomers. The RP-HPLC method development approach began with the selection of a column based on the component structure information, bonded phase, and particle physical characteristics. Second, the mobile phase composition was changed to improve peak resolution and peak sensitivity, especially with analytes containing isomers. Choosing the match between the stationary phase and mobile phase composition, the developed RP-HPLC method not only can simplify the procedure appreciably but also significantly decrease total analysis time and increase peak height. The developed isocratic RP-HPLC method for the analysis of this new formulation was then validated for specificity, linearity, precision, and accuracy. The chromatographic peak identification was identified by LC-MS using the electrospray ionisation in the positive-ion mode.

Topics: Chromatography, High Pressure Liquid; Isoindoles; Methoprene; Norbornanes; Permethrin; Pesticides; Piperonyl Butoxide; Pyrethrins; Reproducibility of Results

2003