نتایج جستجو برای: pyrethrins
تعداد نتایج: 617 فیلتر نتایج به سال:
The Chinese rose beetle (Adoretus sinicus Burmeister (Coleoptera: Scarabaeidae)) is an introduced, widely-established pest in Hawai'i. The adult beetles feed on the leaves of cacao (Theobroma cacao L.), which can lead to defoliation and even death of young trees. We evaluated the impact of five commercially available products with different active ingredients (imidacloprid, azadirachtin, Beauve...
Methods are recommended and described for determining Pyrethrin I, Cinerin I, Pyrethrin II, Cinerin II and Jasmolin II with or without combination with synergists such as piperonyl butoxide, in milk, fish and meat, Lat and meat by-products of cattle, goats, hogs, horses, sheep, poultry tissues and eggs using g.l.c. arid t.l,c, It is probably adaptable to cereals, fruit and oilseeds.
Leishmaniasis has been of concern to the U.S. military and has re-emerged in importance because of recent deployments to the Middle East. We conducted a retrospective probabilistic risk assessment for military personnel potentially exposed to insecticides during the "Leishmaniasis Control Plan" (LCP) undertaken in 2003 at Tallil Air Base, Iraq. We estimated acute and subchronic risks from resme...
In an effort to combat West Nile Virus, planes dispersed insecticide over Sacramento, CA, treating nearly 50,000 hectares with pyrethrins and the synergist piperonyl butoxide (PBO). Widespread dispersal of insecticide over a metropolitan area, coupled with extensive pretreatment data on the area's urban creeks, provided a unique opportunity to study effects of mosquito control agents on aquatic...
BACKGROUND Pediculiasis is treated aggressively in the United States, mainly with permethrin- and pyrethrin-containing pediculicides. Increasingly frequent anecdotal reports of treatment failure suggest the emergence of insecticidal resistance by these lice. OBJECTIVE To confirm or refute the susceptibility of head lice sampled in the United States to permethrin. DESIGN Survey. Head lice we...
Glutathione S-transferases (GSTs) are one of the major families of detoxifying enzymes that detoxifies different chemical compounds including insecticides in different insect species. Among the GST subclasses, sigma GSTs are found to be the most abundant and conserved among different insect orders. These GSTs are found to play an important role in lipid peroxidation as well as detoxification. C...
The daisy-like flowers of pyrethrum (Tanacetum cinerariifolium) are used to extract pyrethrins, a botanical insecticide with a long history of safe and effective use. Pyrethrum flowers also contain other potential defense compounds, particularly sesquiterpene lactones (STLs), which represent problematic allergenic residues in the extracts that are removed by the pyrethrum industry. The STLs are...
Pesticides are a class of xenobiotic compounds that recalcitrant and show persistence in the environment for longer period time. Research studies have linked their potential mutagenicity, teratogenicity, carcinogenicity. The accumulation pesticides water sources due to runoff from agricultural lands has posed serious threat biota ecosystem as well human population. Long-term exposure can cause ...
In this study, we investigated effects of Anacyclus pyrethrum L. aqueous root extracts on gonadotropins (LH, FSH) and testosterone serum in adult male rats. A total number of 60 male adult rats were divided randomly into five groups (n=12) including one control group (A), sham control (B) and three test groups (C, D and E). Test groups (C, D and E) received 50, 100, 150 mg/kg does of A. pyrethr...
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