* Provides post-emergence control of crabgrass in its early stages of development.
** Most effective preemergent for controlling goosegrass.
*** Does not contain fertilizer.
**** May be applied at time of seeding lawn. Does not provide good control for goosegrass.
Overview of Herbicides
Always read the label directions before applying an herbicide. Improper use can result in poor weed control, damage to your lawn and ornamental plants as well as to the environment. It is
a violation of state and federal law to use any product in a manner that does not conform to the information on the label.
Selective Post-emergence Broadleaf Herbicides
Products are available in liquid concentrates, granular, or ready-to-use spray bottles. The following is a list of
the most common chemicals found in broadleaf weed herbicides:
1. 2,4-D – On the market for the longest time. This plant growth regulator controls a wide range of broadleaf weeds. Effective against dandelions.
2. MCPP (Mecoprop) – Used to control chickweed and clover.
3. Dicamba – Used to control a variety of weeds, such as knotweed, clover, chickweed, spotted spurge, clover, and purslane. Will not injure turfgrass, but can damage ornamental trees and shrubs when sprayed over areas where roots grow. Use product according to label directions.
4. Triclopyr – Sometimes formulated with 2,4-D, which allows for a greater number of broadleaf weeds to be controlled. Can help to control some of the hard-to-kill weeds, such as wild violet.
Combinations of these chemicals are found in a number of granular and liquid herbicide formulations. It is best to use a combination product when controlling some of the
more difficult weeds. An example is 2,4-D, MCPP + Dicamba, which is effective against a large number of difficult weeds to control.