|
|
Weed Control Calendar for Home Lawns
Table 1. Preemergence
Crabgrass Control in Lawns • Table 2.
Postemergence Broadleaf Control in Lawns • Table
3. Postemergence Selective Control of Growing Grass Weeds in Lawns
Time of Application: Late February to mid-March
Weeds: Crabgrass
Herbicides: Table 1
Turfgrasses: Bermuda, Centipede, St. Augustine, Tall Fescue, Zoysia
Comments: Apply a preemergence herbicide. To be effective, preemergence
herbicides must be applied before weeds emerge. These herbicides require 0.25 to
0.5 inches of rainfall or irrigation for activation. To be effective, they must
be applied before weed seed germination.
Time of Application: April to July
Weeds: Annual and perennial broadleaf weeds (ground ivy, buttonweed, violet)
Herbicides: Table 2
Turfgrasses: Bermuda, Zoysia, Tall Fescue (Check label for St. Augustine
and Centipede)
Comments: Apply three-way (2,4-D + dicamba + MCPP) herbicides to actively
growing broadleaf weeds. Apply these products while the turfgrass is dormant or
actively growing. Using these products during the green-up period results in
unacceptable turfgrass injury.
Time of Application: May to July
Weeds: Crabgrass, Goosegrass, Sandbur, Dallisgrass
Herbicides: Table 3
Turfgrasses: Bermuda, Zoysia
Comments: Apply MSMA or CAMA to control escaped grass weeds in
bermudagrass and zoysiagrass. Do not apply MSMA, DSMA or CAMA to centipedegrass
or St. Augustinegrass. MSMA is more effective when temperatures are warm. When
using MSMA during the early part of the season, apply at midday to take
advantage of higher temperatures.
Time of Application: May to July
Weeds: Nutsedge or "Nutgrass"
Herbicides: Table 3
Turfgrasses: Bermuda, Zoysia
Comments: Apply MSMA or CAMA to suppress nutsedge. Repeat applications
will be needed. Do not apply MSMA, DSMA or CAMA to centipedegrass or St.
Augustinegrass.
Time of Application: September 1
Weeds: Annual Bluegrass, Henbit, Chickweed
Herbicides: Table 1
Turfgrasses: Bermuda, Centipede, St. Augustine, Tall Fescue, Zoysia
Comments: Choose and apply a preemergence herbicide. Do not apply to
lawns that will be overseeded. Do not apply preemergence herbicides to newly
established lawns until after 3 to 4 mowings.
Time of Application: November to March
Weeds: Wild garlic or "onion"
Herbicides: Table 2
Turfgrasses: Bermuda, Zoysia, Tall Fescue (Check Label for St. Augustine
and Centipede Safety.
Comments: Apply three-way (2,4-D + dicamba + MCPP) herbicides in late
November or December when temperatures are above 50 degrees Fahrenheit. Add ½ oz
surfactant per gallon of spray mix. Repeat treatment in early March and again
the following December for complete garlic control.
Time of Application: November to March
Weeds: Winter Annual Broadleaf Weeds
Herbicides: Table 2
Turfgrasses: Bermuda, Zoysia, Tall Fescue (Check label for St. Augustine
and Centipede)
Comments: Apply three-way (2,4-D + dicamba + MCPP) herbicides in
late November through March when warm season grasses are dormant and
temperatures are above 50 degrees Fahrenheit.
|
Table 1. Preemergence Crabgrass
Control in Lawns |
| Trade Name |
Active Ingredient |
| Green Light First Down Crabgrass Control |
benefin + trifluralin |
| Setre XL 2G |
benefin + trifluralin |
| Hi-Yield Crabgrass Preventer |
benefin + trifluralin |
| Green Light Amaze Grass and Weed Preventer |
benefin + oryzalin |
| Pennington Crabgrass Preventer |
benefin |
| Green Light Betasan Crabgrass Preventer |
bensulide |
| Halts Crabgrass Preventer |
pendimethalin |
|
Table 2. Postemergence Broadleaf
Control in Lawns |
| Trade Name |
Active Ingredient |
| Ortho Weed-B-Gon Lawn Weed Killer |
2,4-D + MCPP |
| Acme Super Chickweed Killer |
2,4-D + MCPP + dicamba |
| Dragon Lawn Weed Killer |
2,4-D + MCPP + dicamba |
| Green Light Wipe Out |
2,4-D + MCPP + dicamba |
| Martin’s DeWeed Lawn Weed Killer for
Southern Grasses |
2,4-D + MCPP + dicamba |
| Rigo Super Lawn Weed Killer |
2,4-D + MCPP + dicamba |
| Spectrum Lawn Weed Killer 33
Plus |
2,4-D + MCPP + dicamba |
| Trimec Classic |
2,4-D + MCPP + dicamba |
| Trimec Southern |
2,4-D + MCPP + dicamba |
| Ortho Weed-B-Gon for Southern Lawns Formula
II |
2,4-D + MCPP + dicamba |
| Fertilome Weed Out Lawn Weed Killer |
2,4-D + MCPP + dicamba |
| Atrazine 4L Herbicide |
atrazine |
| Hi-Yield Atrazine |
atrazine |
| Ortho Atrazine Plus |
atrazine |
| Basagran T/O |
bentazon |
| Hi-Yield Basagran |
bentazon |
|
Table 3. Postemergence Selective
Control of Growing Grass Weeds in Lawns |
| Trade Name |
Active Ingredient |
| Bermudagrass Weeder |
MSMA |
| Fertilome Crabgrass, Nutgrass and
Dallisgrass Killer |
MSMA |
| Green Light MSMA Crabgrass Killer |
MSMA |
| Hi-Yield 529 MSMA |
MSMA |
| Rigo’s Best Crabgrass Killer |
MSMA |
| Martin MSMA Crabgrass Killer |
MSMA |
| Drexel MSMA 6 Plus |
MSMA |
| Ortho Crabgrass and Nutgrass Killer |
CAMA |
| Green Light DSMA Crabgrass Killer |
DSMA |
| Vantage T/O (centipedgrass only) |
sethoxydim |
| Hi-Yield Poast (centipedgrass only) |
sethoxydim |
Also see
Herbicide Safety Precautions. Use of brand names
does not imply endorsement of the products named or criticism of similar
ones not mentioned. Before selecting a product, check on the safety to
the turfgrass and whether or not it will control the weeds present in
the turf.
Back to Weed Control for Home Lawns
|
