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Bentazon is a selective herbicide as it only damages plants unable to metabolize the chemical. [1] It is considered safe for use on alfalfa, beans (with the exception of garbanzo beans [1]), maize, peanuts, peas (with the exception of blackeyed peas [1]), pepper, peppermint, rice, sorghum, soybeans and spearmint; as well as lawns and turf. [3]
The glyphosate-based herbicide RoundUp (styled: Roundup) was developed in the 1970s by Monsanto. Glyphosate was first registered for use in the U.S. in 1974. [4] Glyphosate-based herbicides were initially used in a similar way to paraquat and diquat, as non-selective herbicides. Attempts were made to apply them to row crops, but problems with ...
Glufosinate use in the USA in 2018. Glufosinate is a broad-spectrum herbicide that is used to control important weeds such as morning glories, hemp sesbania (Sesbania bispinosa), Pennsylvania smartweed (Polygonum pensylvanicum), and yellow nutsedge (Cyperus esculentus) similar to glyphosate.
According to Ian Heap, a weed specialist, who completed his PhD on resistance to multiple herbicides in annual ryegrass (Lolium rigidum) in 1988 [189] – the first case of an herbicide-resistant weed in Australia [190] – by 2014 Lolium rigidum was the "world’s worst herbicide-resistant weed" with instances in "12 countries, 11 sites of ...
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.
In agricultural parlance, desiccation is divided into two distinct groups: "true desiccants" and pre-harvest systemic herbicides. [14] [15] True desiccants are not chemical desiccants, rather they are contact herbicides which kill only the parts of the plant they touch. They induce plant death/defoliation rapidly and dry down occurs within a ...
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