Sugar herbicide

Sugar herbicide RE 39571, 5,6-dideoxy-l,2-0-(l-methylethylidene)-3-0-(2-methylphenylmethyl)-a-D-xylo-hexofuranose (Figure 1), a representative of a novel series of chiral grass herbicides, has been demonstrated in our laboratories to possess a high level of preemergence herbicidal activity against grassy weeds with safety on soybeans, cotton, peanuts, and several other broadleaf crops. This herbicide has also been demonstrated to possess some broadleaf weed activity. 

Hypothetical Biological Binding Site for Sugar Herbicide... 

In general, triazines are pre- and post-emergence selective herbicides particularly effective on annual and perennial broadleaf and grassy weeds in corn, sorghum, cotton, soybeans, sugar cane, and a host of other fruit and cereal crops. Some have anti-fungicidal properties (e.g., anilazine), and some (e.g., simazine) can be used for... 

Use pattern Terbacil is a substituted uracil herbicide used primarily to control annual and perennial grass and broadleaved weeds in apple orchards, alfalfa, asparagus, mint and sugar cane. Other minor uses include blueberries, strawberries and seed grasses... 

After use, herbicides decompose slowly, and so affect cultivated plants for many years. In 1990, investigations in many regions of the USSR detected herbicides phytotoxic effects, especially among the si/m-triazine class, on different cultivars in many varied situations [13]. These sym-triazine herbicides, such as protrazin, simazin, atrazine, metazin, and prometrin, were used in different oblasts of the Ukraine, Kirgizia, Kazakhstan, Russia and Moldavia in previous years, especially on corn. Residual herbicide aftereffects led to the suppression and death of crops such as winter wheat, oats, barley, rye, potatoes, beets and sugar beets, linen, onions, watermelons and other melons, and sunflowers. 

C. carpio 5 increase in activities of various liver enzymes, and in blood sugar levels during exposure for 6 days effects enhanced by the herbicide methidation 19... 

Alcohols, drugs, herbicides, pesticides, phenols, steroids, sugars... 

Pasture land and railroad rights of ways in connection with sugar cane operations offer additional opportunities for the use of herbicides. On one property of 100,000 acres, over 300 miles of permanent railway are maintained. Roughly half of this right of way receives one or more applications of a 2,4-D and TCA mixture each year the rest is burned. A cheap, nonpoisonous soil sterilant is indicated. All Cuban plantations have their own rail systems with similar problems, but permanent rail transportation is less common in other areas. 

Potential use of herbicides in sugar cane might be placed at 8,000,000 to 10,000,000 pounds a year, while actual use currently is probably 15 to 20% of this amount. Doubling the use of herbicides in the near future would appear possible, making the probable consumption approach 3,000,000 pounds a year. 

In the past 10 years, chemical weed killers have replaced the machete and the hoe to a large extent in the tropics, especially in sugar cane fields. More than any other chemical, 2,4-D and its derivatives are used. Herbicides could also be used profitably to a greater extent in crops such as pineapple, rubber, rice, coffee, pastures, and lawns. Methods and chemicals used in Puerto Rico are described and results are compared with other areas. 

Applying contact herbicide (pentachlorophenol and aromatic distillate) to sugar cane by 5-gallon knapsack sprayer. Pressure is maintained by pump at right-hand side. Herbicide is being applied to ground virtually... 

Uses Pre-emergence herbicide used in soil to control germinating broadleaf grasses and weeds in crops such as apples, cotton, grapes, pears, pineapples, and alfalfa sugar cane flowering depressant. 

Many new sugar based products present the advantage of being non-toxic and biodegradable. The products resulting from the telomerization of 1 with appropriate nucleophiles such as alcohols, amines, water, or carbon dioxide serve generally as useful intermediates in the synthesis of various natural products and fine chemicals [60-63], as precursors for plasticizer alcohols [56, 64], components of diesel fuels [65], surfactants [11, 66], corrosions inhibitors, and non-volatile herbicides [67]. 

Other herbicides are selectively inactivated by the target crop whilst the weeds that they control either do not metabolise them or they do it so slowly that the weed is killed before it can inactivate the herbicide. There are a number of key plant enzymes that are used in the inactivation of herbicides. Microsomal mixed function oxidases are able to hydroxylate a wide range of herbicides such as bentazone and diclofop-methyl (Figure 2.30). It is often the case that these hydroxylated metabolites are subsequently glucosylated by sugars in the tissue and these conju-gants can be stored in the cell vacuole where they can have no phytotoxic effects. 

The major crops for agrochemical use are cotton, rice, maize, vegetables and top fruit for insecticides small grain cereals, rice, vines and top fruit for fungicides, and maize, soybeans, small grain cereals, rice, industrial weed control, plantations and orchards for herbicides. Other crops that may be of interest include sugar beet, oil-seed rape, potatoes and citrus dependent upon your company s presence in these crops. 

This compound, l,2-dihydro-3,6-pvridazinedione, is also used as a growth regulator, herbicide, and plant modifier. It is used in the treatment of tobacco plants as a post-harvest sprouliug inhibitor and as a sugar content stabilizer in sugar beets. 

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