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. A team of researchers at Louisiana Tech University has found that a naturally occurring microorganism acts as a natural herbicide against giant salvinia. http://www.physorg.com/news177864774.html Biology Thu, 19 Nov 2009 15:10:04 EST news177864774 Research scientists at Nova Scotia Agricultural College have been working steadily to find effective organic methods to control weeds in cultivated blueberry crops. One resulting study, published in a recent issue of the ASHS journal HortScience, reported on the efficacy of three organic mulches used on highbush blueberry (HBB) produced under organic production practices. The research team determined that the major factor influencing weed suppression by compost mulches (for certain weed species) was likely mulch thickness and bulk density, which provide a barrier to weed growth and prevents light penetration to the soil surface. http://www.physorg.com/news176565121.html Biology Wed, 04 Nov 2009 22:00:02 EST news176565121 A common weed and human cancer cells could provide some very uncommon details about DNA structure and its relationship with telomeres and how they affect cellular aging and cancer, according to a team led by scientists from Texas A&M University and the University of Cincinnati. http://www.physorg.com/news175791796.html Chemistry Mon, 26 Oct 2009 16:20:01 EST news175791796 (PhysOrg.com) -- Agricultural Research Service (ARS) scientists may soon find a way to enhance the weed-killing capabilities of a cereal grain that enriches the soil when used as a winter cover crop. http://www.physorg.com/news175181061.html Space & Earth Mon, 19 Oct 2009 14:50:01 EST news175181061 Spring and summer often find homeowners out in their yards, busily attempting to control the onslaught of dandelions in a quest for green, weed-free lawns. Dandelions, broadleaf perennial plants that have a questionable reputation as lawn wreckers, can make even the most patient gardener reach for chemical weed killers to control the onslaught of the ubiquitous weeds. Now, the answer to an environmentally responsible way to control dandelions could be right on the front lawn. http://www.physorg.com/news171625117.html Biology Tue, 08 Sep 2009 10:39:39 EST news171625117 There's no "silver bullet" gene or gene region that controls so-called complex traits in maize, commonly known as corn. http://www.physorg.com/news168787479.html Biology Thu, 06 Aug 2009 15:10:01 EST news168787479 In a little over seven hours, University of Illinois weed scientist Patrick Tranel got more genetic information about waterhemp than in two years time in a lab. The genetic information was obtained using pyrosequencing technology in the Keck Center at the U of I. The genetic sequence will allow scientists to study herbicide resistance in waterhemp. http://www.physorg.com/news168697152.html Biology Wed, 05 Aug 2009 13:30:02 EST news168697152 In the forest's fight for survival, it's the tallest trees that prevail by reaching for sunlight and shading competition. Corn and other plants, too, divert precious energy to grow higher when nearby plants start to encroach. http://www.physorg.com/news167492414.html Biology Wed, 22 Jul 2009 16:40:08 EST news167492414 Using a diverse herbicide application strategy may increase production costs, but a five-year Purdue University study shows the practice will drastically reduce weeds and seeds that are resistant to a popular herbicide. http://www.physorg.com/news166717631.html Biology Mon, 13 Jul 2009 15:27:36 EST news166717631 If you have weed problems in your cropping system, will adding nutrients just feed the weeds? http://www.physorg.com/news164996835.html Biology Tue, 23 Jun 2009 17:33:32 EST news164996835 (PhysOrg.com) -- Houndstongue--also known as beggar's lice, dog's tongue, sheep bur and woolmat--is not only a general nuisance to those of you who find its sticky seeds stuck in your shoelaces or the hair of your dogs and livestock, but a weed that can impact range and wildlands by displacing native plants and degrading forage quality and capacity for livestock and wildlife. http://www.physorg.com/news162751454.html Biology Thu, 28 May 2009 17:44:37 EST news162751454 (PhysOrg.com) -- Climate change will cause some of Australia`s potential weeds to move south by up to 1000km, according to a report by scientists at CSIRO`s Climate Adaptation Flagship. http://www.physorg.com/news159026386.html Space & Earth Wed, 15 Apr 2009 15:00:22 EST news159026386 (PhysOrg.com) -- Roundup Ready crops have made weed control much easier for farmers, but a new study shows their reliance on the technology may be weakening the herbicide's ability to control weeds. http://www.physorg.com/news158944886.html Biology Tue, 14 Apr 2009 16:22:20 EST news158944886 A scientific team from the John Innes Centre and University of St Andrews has identified a key gene that was transferred from a Sicilian plant into a close relative in Britain, showing how genetic cross-talk between species can be important for evolution. http://www.physorg.com/news145804962.html Biology Thu, 13 Nov 2008 13:22:42 EST news145804962 Move over, Viagra! Researchers in Italy report that an ancient Chinese herbal remedy known as "horny goat weed" shows potential in lab studies as source for new future drugs to treat erectile dysfunction (ED). The study, which provides scientific evidence supporting the herb's well-known use as a natural aphrodisiac, is scheduled for the October 24 issue of ACS' Journal of Natural Products. http://www.physorg.com/news141915803.html Chemistry Mon, 29 Sep 2008 14:03:23 EST news141915803