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The names on the list are the ISO common name for the active ingredient which is formulated into the branded product sold to end-users. [1] The University of Hertfordshire maintains a database of the chemical and biological properties of these materials, [2] including their brand names and the countries and dates where and when they have been ...
The activity of the 2-chloro-4-nitro analog was an outlier, and it was theorized that perhaps the nitro group was being reduced in vivo. The 4-methylsulfonyl group was then prepared to test this hypothesis, and what was to become the commercial herbicide Mikado (II) was prepared. The prospect of improving the biological activity with new ...
2,4-Dichlorophenoxyacetic acid is an organic compound with the chemical formula Cl 2 C 6 H 3 OCH 2 CO 2 H.It is usually referred to by its ISO common name 2,4-D. [4] It is a systemic herbicide that kills most broadleaf weeds by causing uncontrolled growth, but most grasses such as cereals, lawn turf, and grassland are relatively unaffected.
The chemical, supplied by Monsanto and Dow Chemical, was a mixture of two herbicides: 2,4,5-T and 2,4-D. The former was phased-out of field use more than 30 years ago due to toxicity concerns ...
Pages in category "Herbicides" The following 136 pages are in this category, out of 136 total. This list may not reflect recent changes. ...
US Geological Survey estimate of 2,4-D use in the USA to 2019. The use of herbicides in US agriculture is mapped by the US Geological Survey. As of 2019, 2,4-D was the most used of the auxins. 45,000,000 pounds (20,000,000 kg) were sprayed that year, [5] compared to 2,000,000 pounds (910,000 kg) of the next most heavily applied, MCPA. [6]
The herbicide is usually applied to the soil in which the crop is growing, before the emergence of the weeds. [1] In the US it is applied almost exclusively in corn with annual use in 2018 about 600,000 pounds (270,000 kg). [12] The compound is often formulated in combination with the herbicide safener, cyprosulfamide. [13]
2,4-DB or 4-(2,4-dichlorophenoxy)butyric acid is a selective systemic phenoxy herbicide used to control many annual and perennial broad-leaf weeds in alfalfa, peanuts, soybeans, and other crops. Its active metabolite , 2,4-D , inhibits growth at the tips of stems and roots.