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Herbicidal warfare is the use of substances primarily designed to destroy the plant-based ecosystem of an area. Although herbicidal warfare use chemical substances, its main purpose is to disrupt agricultural food production and/or to destroy plants which provide cover or concealment to the enemy, not to asphyxiate or poison humans and/or destroy human-made structures.
It is also used to neutralize acidic components of some herbicides. [3] See also. 1-Amino-2-propanol; Diisopropanolamine; References This ...
Former Professor Emeritus of Forage Crops Ecology at University of Tennessee's Department of Plant Sciences, Dr. Henry Fribourg, was an Army scientist in the mid-1950s who helped develop the most efficient dispersal techniques for anti-crop fungus spores and herbicides in labs at Ft. Detrick and in field tests in South Dakota, Texas, and Florida.
Agricultural spray adjuvants are part of integrated pest management, and during pesticide application are used to enhance the effectiveness of pesticides, herbicides, insecticides, fungicides and other agents that control or eliminate unwanted pests.
The use of DCPA as a herbicide was first described in a patent filed in 1958. [12] The material was prepared as had been described in a 1948 research paper by treating terephthaloyl chloride with chlorine to give tetrachloroterephthaloyl chloride which was then esterified with methanol. [13] C 6 H 4 (COCl) 2 + 4 Cl 2 + Fe (cat.) → C 6 Cl 4 ...
Herbicide safeners are organic compounds used to enhance the effectiveness of herbicides, to make them "safer".They minimize the effect of the herbicide on crop plants, thereby improving selectivity between crop plants vs. weed species being targeted by the herbicide.
As a herbicide, it was introduced in 1962, [2] and it quickly became the fourth most used herbicide in the US, with 28.5 million pounds (12.9 thousand tonnes) used in 1974. [4] Its use has declined significantly, to 15 million pounds (6.8 thousand tonnes) in 1991 to 950 thousand pounds (430 tonnes) by 1998.
Living mulches grow for a long time with the main crops, whereas cover crops are incorporated into the soil or killed with herbicides. Other benefits of mulches are slowing the growth of weeds, and protecting soil from water and wind erosion. Some living mulches were found to increase populations of the natural enemies of crop pests. [1]