Weed Control
Broadleaf Weed Control
The development and maintenance of a dense, healthy stand of grass is the best way to reduce the incidence of broadleaf weed problems developing in home lawns. To facilitate the production of healthy lawns, homeowners should incorporate recommended turf grass selections and management practices into their establishment and maintenance programs. These recommendations include the use of adapted species and cultivars, adequate fertilization programs, proper mowing practices, adequate supplemental irrigation, and necessary insect and disease control measures. Occasionally however, even the best cared-for lawns are sometimes invaded by broadleaf weeds.
POSTEMERGENT HERBICIDES will be used to control broadleaf weeds (i.e., non-grassy weeds) that are not prevented with the use of preemergent herbicides. It is essential that sensible cultural practices be used to encourage rapid fill-in soon after the turf has been treated with the weed control chemical, since new weeds will quickly re-infest the areas left open by the recently-killed weeds. For this reason, HERBICIDE USE SHOULD BE REGARDED AS ONLY ONE TOOL IN THE TOTAL WEED CONTROL PROGRAM.
| Weed Name | Life Cycle(1) | Image | Time of Application | Degree of Control |
|---|---|---|---|---|
| Bindweed | Perrenial |  |
Early Summer | Good |
| Black medic | Annual |  |
Early Spring | Stubborn |
| Chickweed, common | Annual |  |
Spring or Fall | Good |
| Chickweed, mouse-ear | Perrenial |  |
Fall or Spring | Good |
| Chickory | Perrenial |  |
Spring | Good |
| Cinquefoil | Perrenial |  |
Fall or Spring | Controllable |
| Dandelion | Perrenial |  |
Fall or Spring | Controllable |
| Dock, curly | Annual/ Perrenial |
 |
Fall or Spring | Good |
| Garlic or onion | Perrenial |  |
Late Fall, Early Spring | Controllable |
| Ground ivy | Perrenial |  |
Summer, Fall or sSring | Stubborn |
| Heal-all | Perrenial |  |
Spring | Good |
| Henbit | Annual |  |
Spring | Stubborn |
| Knotweed | Annual |  |
Spring to Mid-Summer | Good |
| Mallow round leaf | Annual |  |
Spring | Fair |
| Pigweed | Annual |  |
Summer | Good |
| Plantain, buckhorn | Perrenial |  |
Fall or Spring | Fair |
| Plantain, common | Perrenial |  |
Fall or Spring | Good |
| Poison ivy | Perrenial |  |
Spring or Summer | Good |
| Purslane | Annual |  |
Spring or Fall | Stubborn |
| Red sorrel | Perrenial |  |
Spring, Summer or Fall | Good |
| Speedwell, creeping | Perrenial |  |
Fall or Spring | Good |
| Speedwell, annual | Annual |  |
Spring or Fall | Fair |
| Spurge, spotted | Annual |  |
Summer | Stubborn |
| Sow thistle | Annual |  |
Fall | Controllable |
| Thistle(3) | Perrenial |  |
Spring | Controllable |
| Wild violet | Perrenial |  |
Spring or Fall | Stubborn |
| White clover | Perrenial |  |
Spring, Summer or Fall | Good |
| Wild carrot | Annual/ Perrenial |
 |
Fall or Spring | Good |
| Wood sorrel
(Oxalis) |
Annual |  |
Early Summer | Fair-Good |
| Yarrow | Perrenial |  |
Spring | Stubborn |
| Knawel | Annual |  |
Summer/Winter | Stubborn |
| Oxalis | Annual/ Perrenial |
 |
Stubborn |
