Surflan is called a preemergent herbicides. What does that mean, how and why are they used?
Preemergent herbicides are a class of weed killers that are applied to the soil before weeds emerge from the ground. The activity of these compounds usually kill germinating seedlings before they emerge from the soil. The new roots and/or shoots absorb some of the material and the plants die. The herbicides are applied to the soil and are usually incorporated into the soil by tillage or irrigation after application. This is necessary because environmental factors such as sunlight cause these products to degrade over time. With pesticides there are several names of each compound that must be understood to avoid confusion. For a single pesticide compound there are three classes of naming. The first is the long chemical name from which a good chemist can reconstruct the molecular structure. The second is the common name, which is registered and approved by the EPA, and is peculiar to that compound no matter who is manufacturer. This common name is analogous a scientific or Latin name of a
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- Surflan is called a preemergent herbicides. What does that mean, how and why are they used?
