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PBI-Gordon · Liquid
Trimec Classic
Three-way broadleaf herbicide, the workhorse concentrate
2,4-D 25.93%, mecoprop-p 6.93%, dicamba 2.76%
Post-emergent — broadleaf weeds
In your 2 gal tank1.2 fl oz0.6 fl oz per gallon · covers 1,000 sq ft
Whole lawn6.0 fl oz over 5,000 sq ft
Tanks to mix5.010 gal of water in total
1.2 fl oz per 1,000 sq ft (label range 0.8–1.5). A gallon jug lasts years at these rates. Wait three to four weeks before seeding into treated ground, and skip broadcast passes above 85°F.
Label wants 1–6 gal of water per 1,000 sq ft — that puts a 2 gal tank at 333–2,000 sq ft.
- Spot spraying: 1.2 fl oz per gallon on the label — for touch-ups, not for covering the lawn.
- Do not water in — leave it on the leaf.
- Keep people and pets off until dry. No irrigation for 24 hours after.
- 2 applications a year, 30 days apart; about 2.9 fl oz per 1,000 sq ft a season.
- Cool-season, common bermuda, bahia and zoysia 1.2–1.5; hybrid bermuda 0.75–1.5; bentgrass, centipede and St. Augustine capped at 1 fl oz per 1,500 sq ft. Not for carpetgrass, dichondra or Floratam.
- Read the label — it governs, not this page.
Jobs that call for it
Where this product shows up in the season — open a job for the full how-to.