Weed Control
Pasture Weed Control: The Label Restriction Comes First
Grazing restrictions run from seven days to a year, and beef and dairy differ. UGA: without cultural practices, herbicide use will not be beneficial.
Selective Broadleaf Herbicide (water-soluble, agricultural label)
Alligare Dicamba 4 Herbicide, 2.5 Gallons Review
★★★☆☆ 3.4/5
our editor rating how we score4.5/5 from 76 shoppers at Amazon — their number, not ours.
$100–$120
Typical price · 2.5 gallons — agricultural volume; rates per label by crop and site
Affiliate links — see our disclosure. Commissions never influence verdicts.
Dicamba works, and it is the herbicide most likely to damage a neighbour's garden through vapour movement hours after you finished spraying.
Our Verdict
Dicamba is an effective broadleaf herbicide and it is also the active behind more off-target damage complaints than almost anything else available, which is why our rating is low despite a solid 4.5 customer score. The mechanism people underestimate is vapour: dicamba can volatilise from treated surfaces after application and move as a gas, so damage is not limited to where the spray drifted at the time. Tomatoes, grapes, redbud, sensitive ornamentals and non-tolerant soybeans are injured at extremely low exposures, and the symptoms — cupped, strapped leaves — appear days later on plants nobody sprayed. On a rural property with distance in every direction that risk is manageable with attention to temperature and wind. On a suburban or semi-rural lot with neighbours, a vineyard, or a vegetable garden within a few hundred feet, we would not use it, and a 2.5-gallon agricultural container is an odd thing to own for occasional use. If dicamba is genuinely the active you need, it is present at low rate in ordinary three-way lawn products, which is a far more proportionate way to buy it.
✅ Pros
- Effective on broadleaf weeds that resist 2,4-D alone
- Agricultural label covers a wide range of crops and sites
- 2.5 gallons is low cost per acre at scale
- 4.5 across 76 Amazon ratings
⚠️ Cons
- Volatilises and moves as vapour after application — off-target damage is not limited to spray drift
- Tomatoes, grapes and sensitive ornamentals are injured at very low exposure, days later
- 2.5 gallons is agricultural volume for a product most people should use sparingly if at all
- Available at low rate inside ordinary three-way lawn products, which is a more proportionate purchase
Product type
Selective Broadleaf Herbicide (water-soluble, agricultural label)
Active ingredient
Dicamba, dimethylamine salt 50.2%
Price range
$100–$120
Coverage
2.5 gallons — agricultural volume; rates per label by crop and site
Best for
Broadleaf control on genuinely isolated acreage, by someone who will read the temperature and buffer guidance
our editor rating
3.4 out of 5
Where our facts come from
Label read on EPA's label database
EPA Reg. No. 81927-55
We opened this product's accepted label on EPA's own Pesticide Product Label System — the strongest source available for what a product is registered to do.
What we found when we read it
Label read 2026-08-02 on EPA PPLS. Alligare Dicamba 4, EPA Reg. 81927-55, dimethylamine salt of dicamba 50.2%. Grazing statement found relates to sorghum: 'Do not graze or feed treated sorghum forage or silage prior to mature grain stage'. The corn reference the owner spotted in the marketplace listing is real — dicamba is a labelled corn herbicide — but read the crop stage restrictions on this label before treating any crop rather than relying on the listing text.
Where this page and the container disagree, the container wins — the label is the legal authority on rates and restrictions. How to read one yourself.
Where This Product Matters
Matched against each state's actual disease, weed and pest pressure.
Colorado
Colorado hub →Field bindweed
Application window: May–June and September; high-altitude sun makes stressed turf easy to injure, so spot-treat rather than blanket-spray
Idaho
Idaho hub →Field bindweed
Application window: Late April into June, then September into October; skip the July and early August heat, which is also when UI's own fertilizer schedule goes quiet
Kansas
Kansas hub →Field bindweed — a Kansas problem out of all proportion to its national reputation, and a perennial that shrugs off a single application
Application window: April into May and again in September–October; avoid July and August, when a tall fescue lawn here is already at its limit
Montana
Montana hub →Field bindweedCanada thistle and other listed noxious weeds pushing in from unmanaged edges
Application window: June, then late August into September. In a sub-100-day valley there is no third chance
Nebraska
Nebraska hub →Field bindweed, a plains perennial that no single application settles
Application window: Late spring and again from late August through September, when perennial broadleaf weeds are moving reserves to the root
Nevada
Nevada hub →Field bindweed
Application window: March–April and October in the south; May and September in the north
New Mexico
New Mexico hub →Field bindweedKochia and Russian thistle at the dry margins
Application window: Spring and early autumn; in the south skip the June heat entirely, and in the north the usable autumn window closes by early October
North Dakota
North Dakota hub →Field bindweed
Application window: Early to mid-June, then late August into early September. There is no third opportunity
Oklahoma
Oklahoma hub →Field bindweed
Application window: Judged by wind before season: sustained wind is Oklahoma's normal condition, so the usable spray days are calm mornings in April, May and September rather than whole months
South Dakota
South Dakota hub →Field bindweed
Application window: Early to mid-June, then late August into September, which is the pass that actually holds on perennial broadleaf weeds
Utah
Utah hub →Field bindweed
Application window: May and September, avoiding the intense midsummer heat on the label
Wyoming
Wyoming hub →Field bindweedCanada thistle and other listed noxious species moving in from unmanaged edges
Application window: June, then late August into September. UW's own framing is useful: a slow-release application covers a 90 to 100 day growing season, which is roughly the entire Wyoming season
Common questions
Common Questions
How much does Alligare Dicamba 4 Herbicide, 2.5 Gallons cost?
Alligare Dicamba 4 Herbicide, 2.5 Gallons typically runs $100–$120, covering 2.5 gallons — agricultural volume; rates per label by crop and site.
What does Alligare Dicamba 4 Herbicide, 2.5 Gallons treat?
Alligare Dicamba 4 Herbicide, 2.5 Gallons targets broadleaf weeds, bindweed, thistle.
What is the active ingredient in Alligare Dicamba 4 Herbicide, 2.5 Gallons?
Dicamba, dimethylamine salt 50.2%, registered under EPA Reg. No. 81927-55.
What is the biggest downside of Alligare Dicamba 4 Herbicide, 2.5 Gallons?
Volatilises and moves as vapour after application — off-target damage is not limited to spray drift
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