Diazinon
Mostrando 25-36 de 40 artigos, teses e dissertações.
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25. Eficiência de inseticidas para preservar madeira contra danos de cupim subterrâneo / Efficiency of insecticides to preserve wood against damages of subterranean termite
A field test was developed to evaluate the efficiency of three insecticides as wood preservatives against damages caused by the subterranean termite Coptotermes havilandi Holmgren, 1911 (Isoptera: Rhinotermitidae). The commercial products with their respective appraised active ingredients were: Dursban 4E chlorpyrifos; Diazinon 60 EC diazinon and Dragnet 384
Publicado em: 2004
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26. Efeitos de extratos de plantas e inseticidas de segunda e terceira gerações em populações de Musca domestica (Diptera: Muscidae)
In this study, the larvicidal activities of 20 organic extracts of plants ftom the family Fabaceae (Leguminosae) and of Pongamol (derived ftom dibenzoylmethane) isolated ftom petroleum ether extracts of the roots of Lonchocarpus montanus AM. G. de AzevedoTozzi, as well as 10 aqueous extracts of plants ftom different families, and two oils and a soap ftom Aza
Publicado em: 2003
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27. Susceptibility to diazinon in populations of the horn fly, Haematobia irritans (Diptera: Muscidae), in Central Brazil
From October 2000 to April 2001, insecticide bioassays were conducted in 18 ranches from 10 counties in the states of Mato Grosso and Mato Grosso do Sul, in Central Brazil. Horn flies from wild populations were exposed to diazinon-impregnated filter papers immediately after collection on cattle, and mortality was recorded after 2 h. A high susceptibility to
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-09
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28. Seletividade de inseticidas a predadores de pulgões
Estudou-se a seletividade dos inseticidas cipermetrina, diclorvós, diazinon, etion, fenitrotion, malation, metamidofós, paration metílico, permetrina, pirimicarbe e vamidation para adultos dos predadores Cycloneda sanguinea (L.) e Eriopis connexa (Germ.)(Coleoptera: Coccinellidae). Folhas de tomateiro foram imersas em caldas inseticidas nas doses utilizad
Horticultura Brasileira. Publicado em: 2000-07
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29. Microbial cleavage of various organophosphorus insecticides.
Bacteria able to utilize Aspon, Azodrin, Dasanit, diazinon, malathion, Orthene, parathion, Trithion, dimethoate, Dylox, methyl parathion, and Vapona as sole phosphorus sources were isolated from soil and sewage. Individual isolates used from 3 to 10 of these insecticides as sole phosphorus sources. The extent of growth of two Pseudomonas strains in media con
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30. Diazinon Resistance, Fluctuating Asymmetry and Fitness in the Australian Sheep Blowfly, Lucilia Cuprina
Genetic evidence suggests that the evolution of resistance to the insecticide diazinon in Lucilia cuprina initially produced an increase in asymmetry. At that time resistant flies were presumed to be at a selective disadvantage in the absence of diazinon. Subsequent evolution in natural populations selected modifiers to ameliorate these effects. The fitness
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31. Polygenic and Single Gene Responses to Selection for Resistance to Diazinon in Lucilia Cuprina
Following mutagenesis with ethyl methanesulfonate, selection in a susceptible strain with a concentration of the insecticide diazinon (0.0004%, w/v) above that required to kill 100% of the susceptible strain, the LC(100) of that strain, resulted in a single gene response. The resultant four mutant resistant strains have equivalent physiological, genetical an
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32. Environmental and Genetic Effects on the Asymmetry Phenotype: Diazinon Resistance in the Australian Sheep Blowfly, Lucilia Cuprina
The asymmetry phenotype of diazinon-resistant flies lacking a fitness/asymmetry Modifier (+/+; R/-) was dominant and independent of developmental temperature, larval density and diazinon concentration. Asymmetry score, pooled over three bristle characters, was ~50% greater for these phenotypes than for those of modified genotypes (M/-; -/-) and unmodified su
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33. Accelerated Mineralization of Two Organophosphate Insecticides in the Rhizosphere
Numerous xenobiotic compounds, including the organophosphate insecticides O, O-diethyl-O-(2-isopropyl-6-methyl-4-pyrimidinyl) phosphorothioate (diazinon) and O, O-diethyl-O-p-nitrophenyl phosphorothioate (parathion), appear to be degraded in the soil environment by an initial cometabolic attack. Comparing the mineralization rates of radiolabeled diazinon and
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34. Scalloped Wings Is the Lucilia Cuprina Notch Homologue and a Candidate for the Modifier of Fitness and Asymmetry of Diazinon Resistance
The Scalloped wings (Scl) gene of the Australian sheep blowfly, Lucilia cuprina, is shown to be the homologue of the Drosophila melanogaster Notch gene by comparison at the DNA sequence and genetic levels. A L. cuprina genomic fragment, which shows strong identity with the Notch (N) gene at the molecular level, hybridizes to the location of the Scl gene on p
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35. Inhibition of aflatoxin production by selected insecticides.
The insecticide naled completed inhibition production of aflatoxins B1, B2, G1, and G2 by and growth of Aspergillus parasiticus at a 100-ppm (100 microgram/ml) concentration. The insecticides dichlorvos, Landrin, pyrethrum, Sevin, malathion, and Diazinon significantly (P = 0.05) inhibited production of aflatoxins at a 100-ppm concentration. However, at a con
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36. Structural and functional divergence of insect CYP6B proteins: From specialist to generalist cytochrome P450
How polyphagous herbivores cope with the diversity and unpredictability of plant defenses remains largely unknown at both the genetic and molecular levels. To examine whether generalist counterdefense enzymes are structurally more flexible and functionally more diverse, two counterdefensive allelochemical-metabolizing cytochrome P450 proteins, CYP6B1 from th
National Academy of Sciences.