Sentences with phrase «from pyrethroids»

Some countries have switched from pyrethroids to an organophosphate insecticide called actellic.

The Center for Public Integrity found that from 2002 through 2007 at least 1,600 pet deaths from pyrethroid spot - on treatments were reported to the EPA.

Not exact matches

The researchers eventually chose a net that combines pyrethroids with a compound called pyriproxyfen, which prevents mosquitoes from producing fertile eggs.

California, Weston said, doesn't want to return to using organophosphates such as chlorpyrifos, which was banned from household use because of human health concerns, «but they want to control the use of pyrethroids to minimize the environmental effects we document.»

The state has requested additional data from manufacturers on the safety of pyrethroids and is analyzing at least 700 products used in households and on farms.

In the new study, 5,046 urine samples collected from U.S. adults and children between 1999 and 2002 were tested for five metabolites of pyrethroid insecticides.

Traces of at least one pyrethroid metabolite were found in 75 percent of the people tested in 2001 - 2002, up from 66 percent in 1999 - 2000.

A 2008 study found pyrethroids and their metabolites in vacuum cleaner dust collected from homes and daycare centers in North Carolina and Ohio.

Roger Cook, director of the National Office for Animal Health, a veterinary drugs industry group, agrees that the pesticides must be disposed of carefully: «Right from the start, pyrethroids have always been seen as particularly hazardous to the aquatic environment.»

Study lead author Mojca Kristan from the London School of Hygiene & Tropical Medicine, said: «This is the first time that effects of pyrethroids on the parasite have been observed in a malaria endemic setting, with wild - caught mosquitoes and parasites.

They took mosquitoes from Pahou in Benin, which were resistant to DDT and pyrethroids, and mosquitoes from a laboratory fully susceptible strain and did a genome wide comparison study.

Researchers from LSTM have found that a single genetic mutation causes resistance to DDT and pyrethroids (an insecticide class used in mosquito nets).

Investigators have found that H. azteca collected from sites influenced by agricultural / urban runoff are as much as 2 - times less sensitive to pyrethroid insecticides than lab - grown H. azteca.

To investigate how some bedbugs were defending themselves, scientists compared the genes of 20 pyrethroid - resistant populations of the insects from around the country against a susceptible colony from Los Angeles, California.

Those products that contain insecticides from the pyrethrin or pyrethroid family are the culprit (e.g, permethrin, cyphenothrin, etc.).

Human descriptions of pyrethroid paresthesia vary from «tingling» to «pins and needles» to «burning» sensations in the skin at the site of pyrethroid contact.

Pyrethroids are the man - made versions of pyrethrins, natural insecticides from chrysanthemum flower.

Many people think the pyrethrins (naturally occurring compounds from the chrysanthemum plant) and pyrethroids (the synthetic counterpart) are less hazardous than fipronil.

Pyrethroids are synthetic products, derived from the pyrethrins.

Most products that are made from pyrethrins or pyrethroids contain low doses and are not harmful to mammals.

If the toxicity is due to ingestion of pyrethrin / pyrethroid, such as from grooming behavior, bathing will do little to nothing to help.

In fact, the frequency of cat pyrethrin / pyrethroid toxicity cases resulting from inadvertent (or intentional) application of a dog product to cats was so high that in 2010 the EPA improved product labeling rules for spot - on products for pets to help prevent these inadvertent and intentional species «mix - ups.»

Other signs resulting from pyrethrin / pyrethroid toxicity often include: