Tag: "pesticides" at biology news
Southern Pine Beetle Reaching Outbreak Levels In North Florida
...ands of trees in the urbanforest, minimized use of pesticides
and saved money. "With quick detection and quick, areawide control, overall tree mortalitycan be kept quite low," Foltz said. Tree removal, however, sometimes is misunderstood, Foltz said, and in somecommunities, cutting down infested pines can cause...
Fund Aims To Repay Developing Nations For Valuable Genes
...dsby eliminating the need for many of the chemical pesticides
currently usedin rice farming. While attending a 1996 Rockefeller Foundation meeting on intellectualproperty rights, Ronald struck up a conversation with John Barton, the GeorgeE. Osborne Professor of Law at Stanford University. Barton had been work...
EPA's Plant-Pesticide Policy Threatens To Stifle Development Of Pesticide Alternatives And International Trade
...m "plant-pesticide"implies that all plants contain pesticides
and therefore, so does food made fromplants, Beach...n, be greater public exposure to syntheticchemical pesticides
in the coming decades." "If it can't be supported by the economics, if it isn't supported by...
No Link Seen Between Breast Cancer And Pesticides, PCB Exposure For General Population
...UFFALO, N.Y. -- A new study of the relationship of pesticides
and PCBs with breast cancer shows that these compo...vels of DDE, HCB, mirex and PCBs. Organochlorine pesticides
and PCBs, or polychlorinated biphenyls, were used widely in the U.S. until the 1970s, when they wer...
Cut Pesticide Use In Half, Urges SFU Biologist
The use of chemical pesticides
in North America can and should be reducedby at le...nston. In 1993, for example, 5.6 billion pounds of pesticides
wereused worldwide. In the U.S. alone, that translates to four pounds of pesticidesfor every man, wo...
Careful Honeybee Breeding Combats Tracheal Mite Pests
...s in North America: cold winters, wet springs, and pesticides
haveall combined to lower the bee population in recent years. In fact, wildpopulations of bees in the United States are nearly extinct. Beekeepers currently manage about 3 million colonies of honeybees inthe United States, and they have suffer...
Research Aims At Nation's First 'Smart' Ground Water Regulations
...that Engel found that 75 percent of the detectable pesticides
that seep into ground water come from just 25 perc...hat farmers in those areas will know exactly where pesticides
and fertilizers can be used safely. "Right now we're using these maps for educational purposes, to s...
Research Finds Alligator Problems Also Evident In Less Polluted Lakes
...by Guillette made headlines in 1993 when they said pesticides
could be responsible for sexual deformities and a previous population decline of alligators in Lake Apopka near Orlando. That lake suffered from a severe pesticide spill in 1980 and commercial development on its shores. "Everyone accepted the fact...
Plants Thrive With Insect-Induced Immune Responses
... nature and potential as analternative to chemical pesticides
in agricultural crops. The UC Davis study, which will appear in the Feb. 20 issue of the journalScience, confirms the benefit of these responses and raises the question of whysuch defensive mechanisms evolved in such a way that they can be switched o...
Insect Taste Buds Target Of Control Method
... it is easier to target the adult beetle. "Most pesticides
are neurotoxins and must make it past all of the ... Farmers currently mix ground-up squash rinds with pesticides
to get the insects to ingest the pesticides. "But purified cucurbitacins are too toxic to use an...
Water Quality In Indiana's White River Basin Affected By Urban And Agricultural Activities
... (USGS), Department of the Interior. A variety of pesticides
used for agricultural or urban uses were commonly ...out the White River Basin. In contrast, only a few pesticides
were found in ground water, and these were at much lower concentrations. Pesticide concentrations in...
Reduced Nutrients Still Cause Problems In The Neuse And Tar-Pamlico Rivers
...inking-water standard was established. Of the 47 pesticides
tested in stream samples, 45 were detected. The most commonly detected pesticides
were atrazine, alachlor, metolachlor, and prometon. Generally, concentrations did not exceed drinkin...
From The Home Front To The River Front, USGS Updates Water-Quality Information
...r, about these same rural wells. Concentrations of pesticides
and other organic contaminants in the water from t...ence of nitrogen, phosphorus, and a broad suite of pesticides
was a major focus of the Lower Susquehanna and Potomac River studies. Concentrations of nitrate, ...
Agriculture and urban activities impact water quality in the South Platte River Basin
...of the South Platte River Basin, concentrations of pesticides
and volatile organic chemicals (VOCs), such as MTB...ral areas, we were mostconcerned about nitrate and pesticides
in local drinking water," said Kevin Dennehy, USGS hydrologist in charge of the study. "While we fou...
USGS Says Central Columbia Plateau Water Quality Impaired by Agriculture, But Some Good News
...were most concerned about checking for nitrate and pesticides
in drinking water," said Sandy Williamson, USGS hy.... Environmental Protection Agency.) "The story on pesticides
is a mixed bag," Williamson said. "We found at least one pesticide in nearly half of thedrinking wat...
Water Quality In Georgia-Florida Coastal Plain Affected By Agricultural And Urban Activities
...ng-water standards. The most frequently detected pesticides
in ground water and streams were the herbicides-at...s and sediments in the study area. Organochlorine pesticides
persist in streambed sediments -- concentrations exceeded guidelines for the protection of aquatic l...
Two Environmental Articles: Deformed Frogs & Dioxin In Old Soil
...he current procedure of assessing the riskposed by pesticides
by examining only the host pesticide must be changed toinclude the relationship between amphibian development and the degradationproducts that form under natural conditions. Chlorinated Dioxins Found In Century-Old Soil Sample The discovery...
Computers, GIS Help Prevent Ground Water Contamination
...tment of Natural Resources. Those studies found 18 pesticides
and five pesticide breakdown products in 9 percent...nse," Engel says. Across-the-board bans of certain pesticides
punish farmers who could otherwise use those chemicals without risk to the environment. They also fo...
Potential Solutions For Gulf of Mexico's "Dead Zone" Explored
... he said. Ifwe decide not to cut back on our pesticides
and fertilizers, we may notbe able to solve the problem. The main problem, he added, comes fromfarming. According to the U.S. GeologicalSurvey , about 56 percent of the nitrogen entering the Gulf is from fertilizerrunoff. Its hard...
Edible Lily Plant Yields A Natural Pesticide
...Hokkaido group found that the plant made these new pesticides
bychlorination of a compound called orcinol, which...d itself from attack. These naturalorganochlorine pesticides
are very unstable. This natural tendency tobreakdown gives them an inherent advantage over syntheti...
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