'Weed from hell' found in Texas
...of the weed's foliage. But with perennials, if the herbicide isn't carried to the roots, the plant may soon rec...wer stage actively growing, spray with a broadleaf herbicide such as Remedy. Use one quart per acre with labeled rates of nonionic surfactant in 40 gallons/acre ...Out-of-balance ecosystems play role in demise of amphibian populations
...ere trematode infection," he said. "In this study, herbicide impacts on aquatic plants were associated with an increased frequency of severe trematode infection in the kidneys of tadpoles." The lack of vegetation also may expose tadpoles to more trematodes coming from the infected snails, because the tadpoles ...Diet may improve cognition, slow aging, and help protect against cosmic radiation
...been shown to leach out of plastics into food; the herbicide atrazine (ATR), which has been suggested to be estrogenic; and the insecticide methoxychlor (MC), which mimics estrogen once it's metabolized in the body. During and after the exposure period, the researchers measured the effects of the chemicals on ...Biotech regulations impede crop domestication
...y contained such a trait for instance, a gene for herbicide resistance into a corn plant. The advent of inexpensive genomic mapping has opened many new doors, he said. "Now, it's much more possible to take different genetic characteristics of a grain crop, for instance, and pinpoint the traits you want to tu...Paving roads can increase weed invasions
...posed soil and more maintenance such as mowing and herbicide treatments, all of which can favor invasive species. To see if non-native weeds really are more likely to invade along improved roads, Gelbard and Belnap surveyed the plants along 42 roads with varying degrees of improvement (paved, improved surfac...Popular weed killer feminizes native leopard frogs across Midwest
...inizes two other species of frog, suggest that the herbicide could be a factor in the decline of frogs and othe...s since 1956 and currently is the most widely used herbicide in the nation. "These studies clearly indicate that atrazine is detrimental to amphibians," said stu......els," said Wade. "Our study looked at thinning and herbicide treatments as methods to provide protection from c...nt, the likelihood of dangerous fire returns." The herbicide treatments, however, have the opposite initial effect. For the first year after application, shrubs...New witchweed-fighting method, presented by CIMMYT and Weizmann Institute scientist
... that herbicide-resistant seeds be coated with the herbicide before planting. Once the crop's plants sprout fr...meeting. The experiments indicate that a low-dose herbicide seed coating on resistant corn can increase yields up to four-fold in fields highly infested with wi...Popular weed killer disrupts frogs' sexual development
...ncy (EPA), raising concerns about heavy use of the herbicide on corn, soybeans and other crops in the Midwest a... both male and female sexual characteristics. The herbicide also lowers levels of the male hormone testosterone in sexually mature male frogs by a factor of 10,...Popular weed killer demasculinizes frogs, disrupts their sexual development
...ncy (EPA), raising concerns about heavy use of the herbicide on corn, soybeans and other crops in the Midwest a...h both male and female sexual characteristics. The herbicide also lowers levels of the male hormone testosterone in sexually mature male frogs by a factor of 10,...Opportunities and risks of genetically modified food
... resistant to pests and diseases, have an improved herbicide tolerance and also thrive in unfavourable environmental conditions. And food with physiologically important contents can be produced more efficiently with transgenic micro-organisms. Micro-organisms of this kind are employed as producers of metabolic...Forestalling pesticide, antibiotic resistance possible, theory predicts
... identify a second biocide pesticide, antibiotic, herbicide or fungicide that specifically kills the resistant pest. Then the two biocides would be used together, either concurrently or alternated, to prevent resistance. Previous attempts to find compounds that would have a negative cross-resistance effect h...Agent Orange might boost the risk of leukemia, UNC researcher says
...a direct connection. Agent Orange was the infamous herbicide sprayed extensively in Vietnam to defoliate leafy ...000 Committee to review the latest findings on the herbicide and asked Dr. Irva Hertz-Picciotto, professor of epidemiology at the UNC School of Public Health, to...UF research shows that a fern soaks up deadly arsenic from soil
...nic -- a carcinogenic heavy metal often used as an herbicide -- the fern may prove useful in cleaning up thousands of sites contaminated by arsenic from industrial, mining, agricultural or other operations around the world. "It has great potential for remediating these contaminated soils," said Lena Ma, an...Agricultural biotechnology hot topic at ASTA corn & sorghum and soybean seed research conferences
... testing for traits that affect the plant, such as herbicide tolerance; testing for novel proteins produced by the plant, such as Bt; and polymerase chain reaction (PCR) methods to detect the DNA sequence of novel gene(s). Karil Kochenderfer, director of International Trade and Environmental Affairs, Grocery M...Farmers and GM crops should both impact farmland birds, Science study predicts
... team investigated the consequences of the changed herbicide use likely to be associated with GMHT crops. The results showed that weed seed populations can be expected to decline by at least 90% in some cases. An important part of the study links the decline in weed numbers to bird numbers, predicting that suc...Genetically engineered foods: science and nature don't necessarily mix
...rops carried genes designed to tolerate a specific herbicide made by the company engineering the seed. This guarantees that humans who ingest the foods will be exposed to herbicides "with a litany of adverse health effects," the article explains. Allergens: "Genetic engineering may transfer new and unident...Monsanto's modified soya beans don't agree with the heat
...enes making the beans resistant to glyphosate, the herbicide marketed as Roundup by Monsanto. Plants carrying these genetic alterations have been shown to produce up to 20 per cent more lignin, the tough, woody form of cellulose. "We think it might make the plants more brittle," says Vencill. Intriguingly, h......ow stands get extremely dense, unless you apply an herbicide and bringin bulldozers," he says. But Grace has found that fire may still play a role in halting the tallowinvasion. The key, he says, is to apply fire early in the colonization process,before the tallow stands are dense enough to eliminate all ...