Is a non-selective, non-residual Herbicide for weed roots is very effective for many years, is widely used in rubber, mulberry, tea, fruit orchards and sugar cane.
Toxicity
Low toxicity of glyphosate herbicide, original powder acute oral LD50 of 4300 mg / kg, rabbit acute dermal LD50> 5000 mg / kg. Rabbit eyes and skin with mild stimulating effect on guinea pig skin allergies and irritation. Glyphosate is not accumulated in the animal body. Under the experimental conditions of the animals no teratogenic, mutagenic and carcinogenic. Fish and aquatic toxicity is low; non-toxic to bees and birds; against predators and beneficial organisms safer. Pure white solid solubility in water is 1.2% (25 degrees Celsius). Low toxicity to humans and animals. The acute oral LD50 in rats is 4320 mg / kg, rabbit percutaneous LD50> 7940 mg / kg. Low toxicity to fish. In the case of human ingestion of glyphosate usually within 15 minutes after oral administration might produce vomiting and throat pain phenomenon, then another may produce abdominal pain and diarrhea. Symptoms usually dose more than 100 ml obvious. Emetic poisoning can come through detoxification, but only to relieve symptoms by lifting a variety of conditions.
History: The herbicidal properties of glyphosate in 1971 by the American DD Baird discovered, developed and produced by the Monsanto Company, to the 1980s, has become an important species in the world herbicides. Poor water solubility of glyphosate, is difficult to directly use, because the initial development of technology is limited, do not come directly glyphosate can make pesticide products dissolved in water, then you want to be formulated as isopropylamine salt of glyphosate processed, potassium salts of glyphosate salt or sodium salt is dissolved in water before use, in order to make herbicides in agriculture and forestry can be used. In 1997, Chemical Industry Co., Ltd. Nantong Flying development made ​​glyphosate products directly dissolved in water, the successful invention of the “mixed direct dissolution method”, using the company’s independent development of plant-derived additives (SD, SDP) and glyphosate phosphine physically mixing the original drug as a powder, granules, can be dissolved in water.
According to Global Research news, new scientific studies have confirmed that Monsanto (MON) of Roundup product is toxic, threatening human and animal body. Recent studies in the U.S. and the German side pointed out that glyphosate has significant toxicity, reflected in: so the Mavericks aging skeletal abnormalities, affecting the normal intestinal probiotics pigs and cattle but no harmful effects on human and animal intestinal botulism resulting colonies poisoning (reference paper Glyphosate linked to botulism and other animal health problems), so that the pig stomach deformity, abnormal increase of pig uterus, causing miscarriage rate was significantly improved livestock and so on. Domestic studies suggest that, in 2006, after domestic unusually frequent unexplained “swine fever” is likely to be genetically modified maize and the use of genetically modified corn produced in the feed contains a lot of glyphosate herbicide caused. Studies have pointed out that glyphosate itself is carcinogenic, harmful, so the EU glyphosate residues in drinking water, there are strict regulations. According to a study at the University of Leipzig, Germany, conducted in December 2011, in a test batch of urine samples by the Berlin urban residents, all samples were found residues of glyphosate residue levels higher than the standard water within the EU food out 5-20 times proves glyphosate in the human food chain constantly residue accumulation. So there are currently recommended to completely disable glyphosate. U.S. Environmental Protection Agency EPA also preparing an announcement to plans decide whether to continue to use this product, or use restrictions to take part in 2015, and currently it is the Canadian authorities to cooperate intends to evaluate the safety and effectiveness. EPA also pointed out in a written statement, will this harm to conduct a comprehensive re-evaluation of herbicides, including the impact on humans and the environment.
Resistant to glyphosate (Glyphosate) transgenic plants is due to the transfer of the screening culture medium containing glyphosate glyphosate-resistant EPSP synthase (5 – enolpyruvylshikimate 3 – phosphate synthase) of E. coli gene, the enzyme is an important amino acid metabolic enzymes, and transgenic plants having a higher concentration of the enzyme can tolerate a higher concentration of glyphosate.
In the United States, glyphosate abuse has produced a considerable number of “super weeds”, until now, appeared in the United States a total of 130 kinds of glyphosate-resistant harm grass, in more than 40 states have appeared in their shadow, than any one countries, experts estimate that harm the grass up to the invasion of the area 11 million acres (about 4.5 million hectares), a serious threat to the U.S. agricultural output. January 2011, the famous plant pathologist in a letter to the Ministry of Agriculture Secretariat letter warned that some of the tests show that the use of glyphosate and some, such as pigs, cattle and other livestock spontaneous abortions and infertility phenomenon. In 2010, Argentine scientists conducting the study also pointed out that the results that glyphosate causes malformations frog and chick embryos. Some other researchers from the private and official also found that this product will damage native creatures, plants, and part of the animal. 2008 environmental organizations – the Center for Biological Diversity will hurt California red-legged frog glyphosate regarding litigation, and the U.S. Environmental Protection Agency EPA subsequently admitted that “this product is likely to have an adverse impact on these frogs.” There are a number of organizations to the U.S. Environmental Protection Agency EPA also issued a number of toxicity data, including teratogenicity and other evidence in order to disable this product worldwide.
The impact on the human body
Glyphosate usually within 15 minutes after oral administration might produce vomiting and throat pain phenomenon, then another may produce abdominal pain and diarrhea. Symptoms usually dose more than 100 ml obvious. Emetic poisoning can come through detoxification, but only to relieve symptoms by lifting a variety of conditions.
Note: glyphosate (in transgenic soybeans and other products have residual) and hexane (present in chemical leaching into the legal system of refined vegetable oils) may be associated with congenital heart disease and other congenital malformation.
Formulations
30% 46% water, 30%, 50% and 65%, 70% soluble powder. 74.7%, 88.8% glyphosate soluble granules and 98%, 95% glyphosate.
Crop object
Tea – annual weeds and perennial weed
Tea – annual weeds, perennial weed, weed
Spring corn – inter-row weed, weed
Spring corn field – between the lines weeds, annual and perennial weeds
Preserved vegetable oil – annual weeds, perennial weeds, weeds
Fire Barrier, Forest Fire Road – perennial weeds, weeds, miscellaneous irrigation
Non-cultivated land – perennial weeds, weeds between the lines, annual weeds, weeds
Cane – annual weeds and perennial weed, weed
Sugar cane fields – inter-row weed, annual and perennial weeds
Citrus – annual and perennial weeds, weeds
Citrus trees, apple trees – Weed
Citrus groves, apple orchards – perennial weeds, inter-row weed, annual weeds, weeds
Road, rail – between the lines weeds, annual and perennial weeds, weeds
Orchard – inter-row weed, annual weeds, perennial weed, weed
Sisal – weeds, annual weeds, perennial weed
Legendary – inter-row weed, weeds, annual weeds, perennial weed
Cotton – inter-row weed, weed
Cotton fields – annual and perennial weeds
Rubber plantation, Mulberry – inter-row weed, weeds, annual weeds, perennial weed
5 Purpose and usage
The original drug use: can be used for processing into 10% glyphosate, Glyphosate IPA 41%, 62% Glyphosate IPA.
Preparation purposes:
Uptake and broad-spectrum Herbicide. The main body of alcohol inhibit plant shikimene acetone-based phosphate synthase, thereby inhibiting the conversion shikimene to phenylalanine, tyrosine and tryptophan, the protein synthesis is disturbed, leading to plant death.
Originally used in rubber plantations controlling thatch and other weeds, make tapping rubber trees a year earlier, the old rubber tree production. Now gradually extended in forestry, orchards, mulberry, tea, rice and wheat, rice and rapeseed rotation etc.. Various weeds different sensitivity to glyphosate, which is different dosage. Such as barnyardgrass, green foxtail, foxtail, goosegrass, crabgrass, cleavers and other annual weeds, the dosage of the active ingredient is counted as 6 ~ 10.5 g/100m. On Plantago, small canadensis, etc. Dayflower dosage as an active ingredient for the 11.4 ~ 15g/100m. On Imperata, bony grass, reeds, etc. need 18 ~ 30g/100m, generally water 3 ~ 4.5kg, directed spray evenly on weed stems.
Usage:
Controlling apple orchard, Taoyuan, vineyards, pear, tea, mulberry and farmland fallow weed, barnyard weed, foxtail, goosegrass, crabgrass, cocklebur, pigweed, chickweed, cleavers and other annuals weeds.