Description
Long-Residual Control for Hard-to-Manage Aquatic Weeds
Alligare Fluridone is a strong fit when quick surface burn-down is not enough. This liquid aquatic herbicide moves through susceptible plants, making it useful for whole-pond and whole-lake programs where longer contact time matters. It works best in freshwater sites with limited discharge, where the treatment can work through duckweed, hydrilla, pondweed, milfoil, coontail, and other susceptible weeds.
Key Features & Benefits
| Feature |
Benefit |
| 41.7% fluridone |
Systemic control for susceptible freshwater weeds. |
| Surface or subsurface use |
Fits multiple application setups. |
| 45-day contact target |
Gives the treatment time it needs to work through the plant. |
| Immediate use at 150 ppb or less |
Swimming, fishing, and drinking water use can continue immediately. |
| Not corrosive to equipment |
Easier fit for spray and metering systems. |
Directions & Dosing Snapshot
| Use Case |
Label Rate |
Application Notes |
| Ponds |
45 to 90 ppb |
Apply to the full pond surface; use higher rates for dense infestations, difficult species, and ponds under 5 acres with average depths under 4 feet. |
| Whole lakes or reservoirs, single application |
10 to 90 ppb |
Use lower rates for Eurasian watermilfoil, curlyleaf pondweed, or greater selectivity; do not exceed 150 ppb total per annual growth cycle. |
| Whole lakes or reservoirs, split or multiple |
Initial 6 to 50 ppb |
Maintain a sufficient concentration for 45 days or longer and verify it over time with water analysis. |
| Partial lakes or reservoirs |
30 to 150 ppb more than 1/4 mile from a functioning potable water intake; less than 20 ppb within 1/4 mile |
If greater than 20 ppb is needed, the application must be at least 1/4 mile from the intake. |
| Dry or dewatered aquatic sites |
Maximum 2 qts. per surface acre per annual growth cycle |
Apply evenly to sediments with 30 to 100 gallons of spray solution per surface acre. |
| Canals |
Static canals: 1 to 2 qts. per treated acre; moving water canals: maintain 15 to 40 ppb for at least 45 days |
Reduce flow when possible and use split, multiple, or metered applications to hold the target concentration. |
Alligare Fluridone 45 ppb and 90 ppb Single Application Rate Example
This chart is an example for Single Application to Whole Lakes or Reservoirs. Rates are shown per treated surface acre by average water depth and target concentration.
Alligare Fluridone per treated surface acre to achieve 45 ppb or 90 ppb
| Average Water Depthof Treatment Site(feet) |
Fluid Ounces of Alligare Fluridoneper Treated Surface Acre |
Quarts of Alligare Fluridoneper Treated Surface Acre |
| 45 ppb |
90 ppb |
45 ppb |
90 ppb |
| 1 |
3.8 |
7.7 |
0.12 |
0.24 |
| 2 |
7.7 |
15.7 |
0.24 |
0.49 |
| 3 |
11.8 |
23.4 |
0.37 |
0.73 |
| 4 |
15.7 |
31.4 |
0.49 |
0.98 |
| 5 |
19.5 |
39.0 |
0.61 |
1.22 |
| 6 |
23.4 |
46.7 |
0.73 |
1.46 |
| 7 |
27.2 |
54.4 |
0.85 |
1.70 |
| 8 |
31.4 |
62.4 |
0.98 |
1.95 |
| 9 |
35.2 |
70.1 |
1.10 |
2.19 |
| 10 |
39.0 |
78.1 |
1.22 |
2.44 |
| 11 |
43.0 |
86.0 |
1.34 |
2.68 |
| 12 |
46.9 |
93.8 |
1.47 |
2.93 |
| 13 |
50.7 |
101.4 |
1.59 |
3.17 |
| 14 |
54.7 |
109.4 |
1.71 |
3.42 |
| 15 |
58.6 |
117.1 |
1.83 |
3.66 |
| 16 |
62.4 |
124.8 |
1.95 |
3.90 |
| 17 |
66.1 |
132.2 |
2.08 |
4.15 |
| 18 |
70.3 |
140.5 |
2.20 |
4.39 |
| 19 |
74.1 |
148.2 |
2.32 |
4.63 |
| 20 |
78.1 |
156.2 |
2.44 |
4.88 |
Label reminder: This chart is an example only for single application planning. The 45 ppb guide values are provided for planning convenience and should be verified against the official Alligare Fluridone product label before application. Refer to the official label for complete directions, restrictions, annual maximums, potable-water intake rules, irrigation limitations, use-site limitations, and any state or local requirements.
Comparison Table
|
Alligare Fluridone |
Fast contact aquatic herbicide |
Pellet fluridone formulation |
Beneficial microbe maintenance program |
| Approach |
Systemic liquid fluridone |
Contact chemistry |
Pellet fluridone |
Biological organic-load support |
| Visual timing |
7 to 10 days to whitening symptoms |
Varies by label |
Varies by label |
Gradual maintenance |
| Best-fit waterbody |
Whole ponds, lakes, reservoirs, canals |
Spot or partial jobs; varies by label |
Placement-focused sites |
Maintenance-focused ponds and lakes |
| Application style |
Surface or subsurface liquid |
Varies by label |
Pellet placement or broadcast |
Routine dosing |
| Best-fit goal |
Long-residual susceptible weed management |
Visible top-growth management |
Placement-driven fluridone management |
Organic-load reduction and maintenance |
Why Choose a Liquid Fluridone Program?
- Systemic reach: Fluridone moves through susceptible plants instead of only affecting exposed growth.
- Longer management window: Extended contact time supports broad pond and lake planning instead of a quick cosmetic burn-down.
- Flexible site fit: One liquid program can fit ponds, lakes, reservoirs, canals, and dry or dewatered aquatic sites.
