Methamidophos
Mostrando 13-16 de 16 artigos, teses e dissertações.
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13. Residues of acephate, of its metabolite methamidophos and of chlorothalonil in greenhouse and field tomato crops (lycopersicon esculentum mill). / Resíduos de acefato, de seu metobólito metamidofós e de clorotalonil em cultura protegida de tomate (Lycopersicon esculentum Mill) e de campo.
O desenvolvimento da agricultura, a modernização dos meios da produção agrícola, buscando atender um mercado exigente em produtos de alta qualidade tem aumentado grandemente os cultivos conduzidos em condições de estufa. Tais culturas, demandam o uso de pesticidas para controle de problemas fitossanitários, cujos resíduos, principalmente em hortali�
Publicado em: 2003
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14. Controle de Tetranychus urticae Koch com fungos entomopatogênicos. / Control of Tetranychus urticae Koch with entomopathogenic fungi.
Among 45 isolates of hyphomycetes tested against Tetranychus urticae, 8 Beauveria bassiana and 4 Metarhizium anisopliae isolates caused mortality >80 and 90%, respectively, 5 days after inoculation with 5x10 7 conidia/mL. Hirsutella sp. caused 73% mortality at a concentration of 1.7x10 7 conidia/mL. Eighty to 100% of cadavers infected by B. bassiana or M. an
Publicado em: 2002
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15. Levels of exposure and biological monitoring of pyrethroids in spraymen.
To assess the exposure response relation of pyrethroids in spraymen, 50 adult male cotton growers were selected and divided into three groups, one group to spray pyrethroids for one day, two groups to spray for three days. Deltamethrin, fenvalerate, and a deltamethrin methamidophos mixture were sprayed by appropriate subgroups for five hours a day. Exposure
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16. Short- and long-term enhancement of excitatory transmission in the spinal cord dorsal horn by nicotinic acetylcholine receptors
Spinal administration of nicotinic agonists can produce both hyperalgesic and analgesic effects in vivo. The cellular mechanisms underlying these behavioral phenomena are not understood. As a possible explanation for nicotinic hyperalgesia, we tested whether nicotinic acetylcholine receptors (nAChRs) could enhance excitatory transmission onto spinal cord
National Academy of Sciences.