How Herbicides Work(1 credit)

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What is a herbicide?

A herbicide is a chemical used to control or kill plants, usually weeds. By definition, it can be effective against all or some plant species.

Two terms that you may frequently encounter in technical discussions about herbicide use are mode of action and mechanism of action. Herbicide mode of action refers to all of the plant processes affected by the herbicide, or the entire sequence of events that ultimately results in death of susceptible plants. It includes herbicide absorption, translocation, metabolism, and interaction at the mechanism of action. In contrast, mechanism of action is a very specific event within mode of action. It refers to the biochemical site within a plant with which a herbicide interacts.

This lesson introduces several important terms related to herbicides and herbicide use. By the end of this lesson, you will:

  • Know the terminology associated with herbicide use, including tolerance, chemistry, efficacy, timing, and placement of applications.

Understand how herbicides are categorized according to their mechanism of action.

Successful completion of this module will earn you 1 recertification credit for New York State DEC certified pesticide applicators in categories 1a,9,10,21,22,23,24,25,2,3a,3b,5a,6a

*If you are certified in one of these states: Maryland, Massachusetts, Pennsylvania, Rhode Island, or West Virginia, you can check the state specific information page to confirm approval and recertification credit value.

*Vermont, Maine, New Hampshire, and Connecticut have approved all DLC courses and awards the same credits as New York.

Price: $30.00
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