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Atrazine is a chlorinated herbicide of the triazine class. [2] It is used to prevent pre-emergence broadleaf weeds in crops such as maize (corn), [3] soybean [3] and sugarcane and on turf, such as golf courses and residential lawns.
In 1985, scientists at FMC Corporation filed patents on a new class of herbicides containing a triazolinone ring. [5] Sulfentrazone was subsequently developed for market under the code number F6285, with first sales in 1991 [6] and achieving registration in the US in 1997, branded Authority. [7]
The U.S. EPA said in the 2003 Interim Reregistration Eligibility Decision, "The total or national economic impact resulting from the loss of atrazine to control grass and broadleaf weeds in corn, sorghum and sugarcane would be in excess of $2 billion per year if atrazine were unavailable to growers." In the same report, it added the "yield loss ...
To control this weed, apply wood mulch that's at least three inches deep. When this weed is small, you can remove it by pulling, but once its woody taproot takes hold, you'll need to dig it out ...
Atrazine is used on many U.S. crops, including corn and sugarcane. It has been banned in the European Union and several other countries and has been found to disrupt the endocrine system.
Poa annua, or annual meadow grass (known in America more commonly as annual bluegrass or simply poa), is a widespread low-growing turfgrass in temperate climates. Notwithstanding the reference to annual plant in its name, perennial bio-types do exist. [2] This grass originated as a hybrid between Poa supina and Poa infirma. [3]