http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Biologists determined that short-term, seasonal exposure to pesticides in rivers and basins may limit the growth and size of wild salmon populations. In addition to the widespread deterioration of salmon habitats, these findings suggest that exposure to commonly used pesticides may further inhibit the recovery of threatened or endangered populations. http://www.physorg.com/news180182664.html Biology Wed, 16 Dec 2009 10:45:54 EST news180182664 Cloaked in a delicate brown and cream striped shell and measuring a mere inch in length, the zebra mussel certainly doesn`t look ominous. This tiny invasive species, however, has wreaked havoc in waterways across Europe and North America. http://www.physorg.com/news179997072.html Biology Mon, 14 Dec 2009 08:00:01 EST news179997072 Whether plants are grown for food or ornamental use, conventional agricultural production methods have the same environmental impact. Pesticides, herbicides, and chemical fertilizers can find their way into the air and groundwater, ultimately affecting the environment, wildlife, and communities. http://www.physorg.com/news179752334.html Biology Fri, 11 Dec 2009 12:10:01 EST news179752334 New varieties of plants marketed as "disease-resistant" or "insect-resistant" are becoming more accessible to consumers. Available through local garden centers and catalogues, these attractive ornamentals often come with guarantees that offer amateur gardeners the promise of lower maintenance or the need for fewer pesticides. http://www.physorg.com/news179690005.html Biology Fri, 11 Dec 2009 04:20:01 EST news179690005 (PhysOrg.com) -- Chemical pesticides are among the tools farmers often use in managing insects dedicated to dining on our nation`s harvest. Pesticides, unfortunately, are not without risk to those who labor in the fields and orchards, planting, tending and harvesting crops. http://www.physorg.com/news176661502.html Medicine & Health Thu, 05 Nov 2009 18:40:01 EST news176661502 Scientists in Canada are reporting the development of a fast, inexpensive "dipstick" test to identify small amounts of pesticides that may exist in foods and beverages. Their paper-strip test is more practical than conventional pesticide tests, producing results in minutes rather than hours by means of an easy-to-read color-change, they say. http://www.physorg.com/news176568700.html Chemistry Wed, 04 Nov 2009 14:52:07 EST news176568700 (PhysOrg.com) -- Since reports of widespread bee die-offs began to surface in October 2006, researchers have investigated possible reasons ranging from hive-infecting mites to cell phone-tower radiation. They have yet to pinpoint the cause of colony collapse disorder -- most likely, because there isn`t just one, say University of Florida researchers. http://www.physorg.com/news176049830.html Biology Thu, 29 Oct 2009 16:10:01 EST news176049830 A new study in China has found that people with higher levels of pesticide exposure are more likely to have suicidal thoughts. The study was carried out by Dr Robert Stewart from the Institute of Psychiatry at King's College London together with scientists from Tongde Hospital Zhejiang Province. http://www.physorg.com/news175425605.html Medicine & Health Thu, 22 Oct 2009 10:30:02 EST news175425605 Those pristine-looking Alpine glaciers now melting as global warming sets in may explain the mysterious increase in persistent organic pollutants in sediment from certain lakes since the 1990s, despite decreased use of those compounds in pesticides, electric equipment, paints and other products. That's the conclusion of a new study, scheduled for the Nov. 1 issue of ACS' Environmental Science & Technology. http://www.physorg.com/news175337686.html Space & Earth Wed, 21 Oct 2009 09:55:42 EST news175337686 (PhysOrg.com) -- Tomato plants under attack from the Botrytis fungus give off an aromatic substance that can be measured in greenhouses. This is the result of research performed by Roel Jansen with which he obtained his doctoral degree at Wageningen University on Friday 9 October. Working within a team of scientists from Wageningen and Germany, Jansen has opened the door to a new way of preventing and managing disease and plague problems in greenhouse horticulture. http://www.physorg.com/news175238915.html Biology Tue, 20 Oct 2009 06:40:01 EST news175238915 (AP) -- Over the last decade, the drinking water at thousands of schools across the country has been found to contain unsafe levels of lead, pesticides and dozens of other toxins. http://www.physorg.com/news173077186.html Space & Earth Fri, 25 Sep 2009 06:00:23 EST news173077186 In areas where malaria mosquitoes have become resistant to chemical pesticides, mosquito-killing fungi can be an effective tool. Fungal spores can effectively infect and kill malaria mosquitoes, even those that are resistant to pesticides. Moreover, the mosquitoes become more susceptible to the pesticides as the fungal infection increases. Researchers from Wageningen University and their colleagues from South Africa have published an article on this effect in the prestigious journal PNAS (Proceedings of the National Academy of Sciences) of this week. http://www.physorg.com/news173007435.html Chemistry Thu, 24 Sep 2009 10:38:05 EST news173007435 (PhysOrg.com) -- It's bad enough that the Southeast is bedeviled by a tick that doesn't mind taking up residence inside homes. But now researchers say they believe the brown dog tick has developed resistance to the treatments most commonly used to fight it. http://www.physorg.com/news172938252.html Biology Wed, 23 Sep 2009 15:40:02 EST news172938252 A new computing tool that could help scientists predict how plants will react to different environmental conditions in order to create better crops, such as tastier and longer lasting tomatoes, is being developed by researchers. http://www.physorg.com/news172848772.html Biology Tue, 22 Sep 2009 15:10:03 EST news172848772 Individuals whose occupation involves contact with pesticides appear to have an increased risk of having Parkinson's disease, according to a report in the September issue of Archives of Neurology. http://www.physorg.com/news172166416.html Medicine & Health Mon, 14 Sep 2009 17:40:01 EST news172166416 Scientists in China are reporting the "intriguing" discovery that a natural plant hormone, applied to crops, can help plants eliminate residues of certain pesticides. The study is scheduled for the Sept. 23 issue of ACS' Journal of Agricultural and Food Chemistry. http://www.physorg.com/news171745791.html Chemistry Wed, 09 Sep 2009 22:50:01 EST news171745791 Plants are anything but as defenceless as they might seem. Various plant hormones work together to specifically fend off attacks. Dutch researcher Antonio Leon-Reyes has now shown how these hormones cooperate. By 'consulting' with each other plant hormones determine which defence mechanism they shall set in motion. http://www.physorg.com/news171137116.html Biology Thu, 03 Sep 2009 09:10:01 EST news171137116 Barn owls have emerged as the unlikely heroes in the fight against climate change, saving Malaysian farmers more than money, UQ PhD Student Chong Leong Puan has found. http://www.physorg.com/news170079728.html Biology Fri, 21 Aug 2009 14:00:02 EST news170079728 They say there's no place like home. But scientists are reporting some unsettling news about homes in the residential areas of California. The typical house there - and probably elsewhere in the country - is an alarming and probably underestimated source of water pollution, according to a new study reported today at the 238th National Meeting of the American Chemical Society. http://www.physorg.com/news169894118.html Space & Earth Wed, 19 Aug 2009 10:00:01 EST news169894118 Mention rosemary, thyme, clove, and mint and most people think of a delicious meal. Think bigger…acres bigger. These well-known spices are now becoming organic agriculture's key weapons against insect pests as the industry tries to satisfy demands for fruits and veggies among the growing portion of consumers who want food produced in more natural ways. http://www.physorg.com/news169649368.html Chemistry Sun, 16 Aug 2009 13:50:18 EST news169649368 A new study by researchers at the Georgetown's Lombardi Comprehensive Cancer Center finds a higher level of common household pesticides in the urine of children with acute lymphoblastic leukemia (ALL), a cancer that develops most commonly between three and seven years of age. The findings are published in the August issue of the journal Therapeutic Drug Monitoring. http://www.physorg.com/news167996065.html Medicine & Health Tue, 28 Jul 2009 10:50:02 EST news167996065 July 13, 2009 - People with Parkinson's disease have significantly higher blood levels of a particular pesticide than healthy people or those with Alzheimer's disease, researchers at UT Southwestern Medical Center have found. http://www.physorg.com/news166729972.html Medicine & Health Mon, 13 Jul 2009 22:00:01 EST news166729972 The eastern lobe of the disaster-struck Aral Sea seems to have shrunk by four-fifths in just three years, the European Space Agency (ESA) said on Friday. http://www.physorg.com/news166434793.html Space & Earth Fri, 10 Jul 2009 09:20:01 EST news166434793 Although it is known that infants are more susceptible than adults to the toxic effects of pesticides, this increased vulnerability may extend much longer into childhood than expected, according to a new study by researchers at the University of California, Berkeley. http://www.physorg.com/news164973602.html Medicine & Health Tue, 23 Jun 2009 11:00:26 EST news164973602 Insecticides used in and around homes - including products voluntarily removed from the market years ago - were measured on the floors of U.S. residences, according to the first study large enough to generate national data on pesticide residues in homes. It is scheduled for the June 15 issue of ACS` semi-monthly journal Environmental Science & Technology. http://www.physorg.com/news164634956.html Medicine & Health Fri, 19 Jun 2009 12:56:21 EST news164634956 Has the key to reducing breast cancer gotten lost in the race for a cure? A new book, No Family History, presents compelling evidence that exposure to everyday products such as cosmetics and toiletries, hormones in food, household cleaners and pesticides is behind the dramatic increase in breast cancer and argues that the solution is simple: prevention. http://www.physorg.com/news164290501.html Medicine & Health Mon, 15 Jun 2009 14:00:01 EST news164290501 A study involving 678 individuals who apply pesticides, culled from a U.S. Agricultural Health Study of over 50,000 farmers, recently found that exposure to certain pesticides doubles one's risk of developing an abnormal blood condition called MGUS (monoclonal gammopathy of undetermined significance) compared with individuals in the general population. The disorder, characterized by an abnormal level of a plasma protein, requires lifelong monitoring as it is a pre-cancerous condition that can lead to multiple myeloma, a painful cancer of the plasma cells in the bone marrow. http://www.physorg.com/news164037691.html Medicine & Health Fri, 12 Jun 2009 16:20:04 EST news164037691 June 04, 2009 - The cause of Parkinson's disease (PD), the second most frequent neurodegenerative disease after Alzheimer's disease, is unknown, but in most cases it is believed to involve a combination of environmental risk factors and genetic susceptibility. Laboratory studies in rats have shown that injecting the insecticide rotenone leads to an animal model of PD and several epidemiological studies have shown an association between pesticides and PD, but most have not identified specific pesticides or studied the amount of exposure relating to the association. http://www.physorg.com/news163344999.html Medicine & Health Thu, 04 Jun 2009 14:37:57 EST news163344999 Federal environmental regulators are warning pet owners and veterinarians to closely follow instructions if they use several popular flea and tick treatments, and monitor their pets, as they investigate thousands of reports about the products, some involving animals becoming sick or dying. http://www.physorg.com/news161366655.html Space & Earth Tue, 12 May 2009 17:04:48 EST news161366655 (PhysOrg.com) -- A North Carolina State University study shows that using integrated pest management (IPM) to control pests in public schools - monitoring closely for signs of pests and then utilizing baits and traps in areas where pests are located - reduces pests and their allergens more effectively than the conventional method of spraying pesticides on a predetermined schedule, whether there are cockroaches present or not. http://www.physorg.com/news160762365.html Medicine & Health Tue, 05 May 2009 17:13:47 EST news160762365