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Imazapyr is a non-selective herbicide used for the control of a broad range of weeds including terrestrial annual and perennial grasses and broadleaved herbs, woody species, and riparian and emergent aquatic species. [1] It is used to control annual and perennial grass and broadleaved weeds, brush, vines and many deciduous trees.
Imazapic is a chemical used as an herbicide. It controls many broad leaf weeds and controls or suppresses some grasses in pasture, rangeland and certain types of turf. It has a half-life of around 120 days in soil. [1] [2] Imazapic is considered an environmental hazard due to its harmful effects on aquatic life. [3]
Imazaquin along with imazamethabenz-methyl, imazapyr, imazapic, imazethapyr, and imazamox comprise the class of synthetic compounds termed the imidazolinone herbicides. These chemicals all feature an imidazolinone ring with a carboxylic acid group attached to the backbone. [4] They vary in the attached ring structure.
Pesticides were found to pollute every stream and more than 90% of wells sampled in a 2007 study by the US Geological Survey. [12] Pesticide residues have also been found in rain and groundwater. [1] United States agricultural workers experience 10,000 cases or more of physician-diagnosed pesticide poisoning annually. [13]
One major complication to the use of herbicides for weed control is the ability of plants to evolve herbicide resistance, rendering the herbicides ineffective against target plants. Out of 31 known herbicide modes of action, weeds have evolved resistance to 21. 268 plant species are known to have evolved herbicide resistance at least once. [59]
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.
For much of the past decade, policymakers and analysts have decried America's incredibly low savings rate, noting that U.S. households save a fraction of the money of the rest of the world.
Pendimethalin is a K1-group (in Australia group D, or numerically group 3) according to the Herbicide Resistance Action Committee (HRAC) classification and is approved in Europe, North America, South America, Africa, Asia and Oceania for different crops including cereals (wheat, barley, rye, triticale), corn, soybeans, rice, potato, legumes ...