Description
Fast, Flexible Control for Tough Aquatic Weeds
When you need contact control in ponds, lakes, canals, ditches, or reservoirs, Flumigard SC gives you a concentrated liquid option for surface sprays on floating weeds and subsurface treatments for water-column control. It is especially useful when you want a non-copper option and rate guidance tied to water depth.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| 42% flumioxazin, 4 lb/gal | Concentrated contact herbicide performance in a measurable liquid format. |
| Surface and subsurface options | Lets you treat floating foliage or build water-column concentration for submersed weeds. |
| Fast-acting contact activity | Fits situations where prompt knockdown matters. |
| Quick breakdown in water | Keeps performance tied to strong coverage and direct plant contact. |
| Water-use clarity after treatment | Drinking and recreation have no post-application hold; irrigation timing varies by rate and depth. |
Directions & Dosing Snapshot
| Use Case | Label Rate | Application Notes |
|---|---|---|
| Floating and emerged weeds | 6 to 12 fl oz per surface acre | Surface spray with an aquatic-approved adjuvant in a minimum of 30 gal water per acre; full coverage is essential. |
| Duckweed and watermeal | 200 ppb throughout the water body | Treat the infested water body thoroughly because escapes can quickly re-infest treated areas. |
| Submersed weeds at 1 ft average depth | 1.1, 1.6, or 2.1 pints per surface acre for 200, 300, or 400 ppb | Use lower to higher concentration based on weed biomass and maturity. |
| Submersed weeds at 2 to 4 ft average depth | 2 ft: 2.1, 3.2, 4.2 pints3 ft: 3.2, 4.8, 6.4 pints4 ft: 4.2, 6.4, 8.5 pints per surface acre for 200, 300, or 400 ppb | Distribute evenly through the water column; early-morning treatment can improve results. |
| Submersed weeds at 5 ft average depth | 5.3, 8.0, or 10.6 pints per surface acre for 200, 300, or 400 ppb | Performance can drop in water above pH 8.5; treat dense vegetation in sections. |
Always follow the full label for complete directions, restrictions, and site-specific requirements.
Comparison Table
| Flumigard SC | Copper-Based Contact Algaecide | Systemic Aquatic Weed Herbicide | Beneficial Microbe Pond Maintenance Program | |
|---|---|---|---|---|
| Active ingredient / approach | Flumioxazin, Group 14 contact herbicide | Copper chemistry contact algaecide | Systemic aquatic weed chemistry | Beneficial microbes and enzymes |
| Primary job | Floating, emerged, and submersed weed control | Algae-focused knockdown | Plant-translocated weed control | Organic-load and sludge support |
| Application basis | 6 to 12 fl oz per surface acre or 200 to 400 ppb subsurface | Varies by label | Varies by label | Varies by product |
| Water-use planning | Drinking/recreation no hold; irrigation timing varies | Varies by label | Varies by label | Varies by product |
| Best-fit strategy | Rapid knockdown with flexible program building | When copper chemistry fits the site | When systemic movement is the priority | When long-term maintenance is the priority |
Why Choose a Fast Contact Aquatic Herbicide?
- Quick response: Fast contact activity helps you address visible growth before it becomes harder to cover.
- More treatment options: Surface spray and subsurface use let you match the application to the weed position in the water.
- Stronger program fit: Flumigard SC works as a standalone treatment or a labeled tank-mix partner when you need a practical next step.
