Herbicide Recommendations for Turfgrass: Postemergence Grass Herbicides

Pub 75: Guide to Weed Control > Turfgrass > Herbicide Recommendations for Turfgrass: Postemergence Grass Herbicides

Excerpt from 2010-2011 Chapter 17, Publication 75, Guide to Weed Control, Order this publication

Apply in 400-800 L/ha (160-320 L/ac) water.

Precautions (For more information, see Chapter 4. Herbicides used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).

POST - For the control of crabgrass at the 1-4 leaf up to the multi-tiller stage.
Good coverage is essential to control multi-tillered or grassy weeds in the reproductive phase.
Make a second application on mature monostands 21 days after first application.
Do NOT apply to bentgrass or seedling Kentucky bluegrass.
Do NOT tank-mix with any other herbicide or pesticide.
Do NOT apply broadleaf herbicides 7 days before or after ACCLAIM SUPER.
Do NOT apply during periods of drought stress.
Do NOT mow grass for 4 days before or after application.
Do NOT irrigate within 3 hours after application.

Precautions (For more information, see Chapter 4. Herbicides used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).

POST- For established turf until crabgrass reaches the 1-3 leaf stage before tillering; NOT recommended after 3 leaf stage. See PRE application above.
Use higher rate for larger plants or when area is heavily infested.
Apply in 200-800 L/ha (80-160 L/ac) water.
Allow turf to recover from aeration, or other stresses before application.
Do NOT apply to putting greens during the first year of establishment.
Check label for sensitive varieties, including Colonial bentgrasses.
Do NOT irrigate within 2 hours of application.
Do NOT reseed for 3 months after application.
May be tank-mixed with KILLEX or other broadleaf herbicides
Do NOT tank-mix with other products for application to putting greens.

Crops