Results 231 to 240 of about 6,961 (257)

Controlled-Release Systems for the Insect Growth Regulator Pyriproxyfen

Journal of Agricultural and Food Chemistry, 2003
A simple technique was developed for the production of controlled-release systems (CRSs) for pyriproxyfen, an insect growth regulator active against the larvae of Culex pipiens, the most common species of mosquito found in developed countries. The CRSs consisted of a spongy core material encapsulated in a coating of a polyurethane or polyurea hydrogel,
Liliana, Schwartz, David, Wolf, Arie, Markus, Sławomir, Wybraniec, Zeev, Wiesman   +4 more
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Pyriproxyfen toxicity to fish and crustaceans: A literature review

Environmental Research
Pyriproxyfen (PPF) is an insect growth regulator (IGR) that acts as a juvenile hormone agonist (JHA). It is widely used as a larvicide to control insect vectors, as antiparasitic medicines, and for pest control in domestic and agricultural environments. Reports in the literature show that PPF is toxic to fish and non-target crustaceans. Therefore, this
Flavio Kiyoshi Tominaga, Rafaella Silva Brito, Juliana Oliveira do Nascimento, Gisele Giannocco, Rui Monteiro de Barros Maciel, Fábio Kummrow, Bruno Fiorelini Pereira   +6 more
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Formulation of pyriproxyfen, a juvenile hormone mimic, for tsetse control

Medical and Veterinary Entomology, 1990
ABSTRACT. A topical dose, in 1 uJ acetone, of 0.02 |xg 2‐[l‐methyl‐2‐(4‐phenoxyphenoxy) ethoxy] pyridine, the juvenile hormone mimic pyriproxyfen (S‐31183, Sumitomo Chemical Co.), caused an adult female tsetse, Glossina morsitans morsitans Westwood, to produce non‐viable ...
P A, Langley, T, Felton, K, Stafford, H, Oouchi   +3 more
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The enantioselective environmental behavior and toxicological effects of pyriproxyfen in soil

Journal of Hazardous Materials, 2019
We synthesized nine pyriproxyfen (PYR) metabolites and developed a chiral residual analysis method for PYR with its metabolites in five soils using ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Soil degradation research showed that higher organic matter content and bigger soil particle size were conducive to the ...
Hui, Liu, Xiaotong, Yi, Jiawei, Bi, Peng, Wang, Donghui, Liu, Zhiqiang, Zhou   +5 more
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Biochemical and teratogenic effects of a mixture of pyriproxyfen and glyphosate

Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology
The mixture of agrochemicals can be made to improve pest control or accidentally. In this way, the effects on non-target organisms are a critical aspect of the environment and heath. Thus, this work aimed to show how a mixture of pyriproxyfen, and glyphosate can impair biochemical routes and embryonic development.
Angélica Sabrina, Dos Santos Azevedo, Josefa Gerlane, da Silva, Jéssica Celerino, Dos Santos, Maria Regina, de Oliveira Silva, Sinara Monica Vitalino, de Almeida, Rafael David Souto, de Azevedo, Marina, de Sá Leitão Câmara de Araújo   +6 more
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Effects of Pyriproxyfen Treatment on the Insect Growth Rates

Entomological Research, 2011
Larvae of Bombyx mori fed on the mulberry leaves treated with pyriproxyfen extended the larval duration. The silkworm on the third day of the fourth instar fed pyriproxyfen 10‐6 concentration extended the fifth instar duration over 20 days and was not able to spinning silk.
Joung Ho Yeom, Seok‐jo Hwag, Yong Jung Kwon   +2 more
openaire   +1 more source

Field Evaluation of Resistance to Pyriproxyfen in Bemisia tabaci (B Biotype)

Journal of Economic Entomology, 2007
We determined effects of aerial sprays of the insect growth regulator pyriproxyfen on sweetpotato whitefly, Bemisia tabaci (Gennadius) (B biotype), in Arizona cotton (Gossypium spp.) fields. We measured survival for males and females from a susceptible strain and a laboratory-selected resistant strain, as well as for hybrid female progeny from crosses ...
David W, Crowder, Timothy J, Dennehy, Christa, Ellers-Kirk, L Christine M, Yafuso, Peter C, Ellsworth, Bruce E, Tabashnik, Yves, Carriere   +6 more
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Modeling Evolution of Resistance to Pyriproxyfen by the Sweetpotato Whitefly (Homoptera: Aleyrodidae)

Journal of Economic Entomology, 2006
We used computer simulations to examine evolution of resistance to the insect growth regulator (IGR) pyriproxyfen by the sweetpotato whitefly, Bemisia tabaci (Gennadius), biotype B [=Bemisia argentifolii (Bellows & Perring)]. Consistent with trends seen in cotton (Gossipyium spp.) fields in Arizona and Israel, results suggest that evolution of ...
David W, Crowder, Yves, Carrière, Bruce E, Tabashnik, Peter C, Ellsworth, Timothy J, Dennehy   +4 more
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Incorporation of Pyriproxyfen in a German Cockroach (Dictyoptera: Blattellidae) Management Program

Journal of Economic Entomology, 1991
Pyriproxyfen (Nylar), a juvenile hormone analog (JHA), and acephate were used in a German cockroach, Blattella germanica (L.), management program. Monthly applications of acephate for 6 mo reduced nightly trap catches from 24.68-25.25 to 4.46-5.31 at 2 mo, and trap catches averaged 1.49-8.04 from 2-6 mo.
P G, Koehler, R S, Patterson
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The effect of pyriproxyfen on the motoric activity of rat intestine - In vitro study

Environmental Pollution, 2018
The application of pyriproxyfen (PPF) to drinking water and constant exposure of the whole population to this insecticide is an unprecedented action on a world scale and presents a new and serious challenge for toxicology. The aim of the study was to evaluate the potential effect of PPF on the intestine muscle activity.
Magdalena Chłopecka, Marta Mendel, Natalia Dziekan, Wojciech Karlik   +3 more
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