Sentences with phrase «studied effects of pesticide»

«There's mounting evidence now from epidemiological studies that prenatal exposure to organophosphate pesticides, and chlorpyrifos in particular, may be associated with detriments with IQ in children,» said Kim Harley, an environmental epidemiologist with the University of California, Berkeley who has studied effects of pesticide exposure on children in California farm towns.

Yet Zayed admits honeybees are not the best species for studying the effects of pesticides on insects in general.

Hungary added that beyond studying the effects of the pesticides themselves, researchers needed to look at the methods used to apply them to the crops.

Not exact matches

However, studies do not debate that organic foods are free of pesticides that have known side effects in animals and humans.

Jay Vroom, CEO and spokesman at CropLife America, a trade partnership of seed and pesticide manufacturers, says studies measuring the effect of neonics on bees in field conditions «consistently demonstrate no negative effects.»

Neuroscientist Christopher Connolly of the University of Dundee, UK, who has studied the effect of neonicotinoids in bee brains, says that the control colonies themselves were contaminated with the pesticides, and that thiamethoxam was detected in two of the three bee groups tested, even though it was not used in the experiment.

Many studies have examined the effects of pesticides on the host organism, but not much attention has been paid to how pesticides directly affect parasites — until now.

Until now, most scientific studies have looked at pesticides one at a time, rather than investigating the effects of multiple real - world pesticide exposures within a colony.

«Fifty - one of the pesticides we tested in this study had never been analyzed in terms of their effects on respiratory outcomes.

In addition, they are carrying out similar studies to measure the effects on bird populations of «conventional» pollutants such as pesticides and other heavy metals, as well as new molecules such as perfluorinated compounds that are also accumulating in the Antarctic.

«The conclusions from this work, which are very simple in contrast to the study itself, show that bees, or at least honey bees, can compensate for adverse effects of pesticides in their environment.

«This paper provides an important link between lab and field studies investigating the effects of neonicotinoid pesticides on honey bees.

A study, published in Occupational and Environmental Medicine, looked at the neurobehavioral effects of long - term exposure to pesticides as a 4 - year follow - up of the PHYTONER study.

«Many scientists have studied similar effects from exposure to pharmaceuticals and pesticides, but now we're seeing it from chemicals found in common road salt and leaf litter,» said Max Lambert, lead author of the paper and a doctoral student at the Yale School of Forestry & Environmental Studies.

The effect of curcumin in this study should be viewed as a launching pad for myriad other wellness changes that can support mood including stabilization of blood sugar, elimination of inflammatory foods, chemicals, and pesticides.

But only a few studies have linked consumption of pesticide residues in food to health effects, and none had looked at the effects on semen quality.

Neither study involved the use of grass - fed organic meats, which is critical because hormones and pesticides used in livestock farming also have negative long - term effects on patient health.

Bruce Blumberg, professor of developmental and cell biology and pharmaceutical sciences at the University of California, Irvine, who coined the term «obesogen,» studies the effect that organotins — a class of persistent organic pollutants that are widely used in the manufacture of polyvinylchloride plastics, as fungicides and pesticides on crops, as slimicides in industrial water systems, as wood preservatives, and as marine antifouling agents — have on the body's metabolism.

In studies using estrogen - resistant mice, exposure to Tordon caused significant hormonal effects — reproductive problems and bone malformations.1, 2 Where I live in the Bitterroot Valley of Montana, more people and animals are exposed to Tordon each spring than to any of the many other pesticides used.

Striking color photographs show the work of Tyrone Hayes and his students as they study the effect of a certain pesticide on frogs.

Well organized and clearly written, this lively entry in the Scientists in the Field series introduces Tyrone Hayes, a biologist studying the effects of agricultural pesticides on the reproductive organs of leopard frogs.

In 2009, the EPA noticed an increase in adverse effects from spot - on pesticides so they studied thousands of 2008 incident reports and reported the following most common side effects of common flea products:

For example, more than 50 years before the studies emerged that inspired Rachel Carson to write Silent Spring, Forbush conducted a three - year study of the effects of pesticide spraying on birds.

The authors of the study believe that further research into the side effects of pesticides will be necessary to protect bee populations.

However, a new study published in the journal Frontiers in Microbiology indicates that many of the pesticides commonly used to protect bees may actually damage bacterial communities in their guts, which can have severe effects on bee health.

For her doctorate she studied the sublethal effects of several pesticides (with an emphasis on the neonicotinoid imidacloprid) on honey bees at the USDA lab in Beltsville under the mentorship of Dr. Jeff Pettis.

The Minister's decision recognized the toxicity of the pesticide to aquatic organisms including amphibians, as illustrated by mitigation measures, and possible environmental risk to amphibians in ephemeral wetlands, but a two - year study already was already underway investigating the effects of the product on amphibians and small wetlands.