EasyPro
Harpoon Granular Aquatic Herbicide
The EasyPro Harpoon Granular Aquatic Herbicide offers effective bottom-up control of copper-sensitive aquatic plants. Packaged in a 40 lb bag, this granular formulation sinks rapidly to target submerged weeds like hydrilla and naiads. It's ideal for situations where water use restrictions are a concern, as treated water can be immediately used for irrigation, swimming, fishing, or animal consumption. Harpoon can be applied as a spot treatment or for larger areas, providing flexible weed management solutions for ponds and water bodies.
$229.99
Owner Satisfaction
4.5
/ 5
Category Rank
213
/ 555
#213 in Herbicides
Price vs Category Average
+135%
Above average
Net Content
40
/ lbs
Who it's for
- Highly Effective Spot Treatment
- Simple, Direct Application
- Fast-Acting Results
Who should skip it
- Risk of Oxygen Depletion
- Water Chemistry Sensitivity
- Potential for Sediment Accumulation
Key Specs
Net Content
40 lbs
Active Ingredient
9.87% Copper Ethylenediamine Complex
Application Rate
40 to 240 pounds per acre-foot
Form
Granular
SKU
HARP40
Target Weed Type
Brush and Vines
Application Form
Granular
Application Timing Type
Post-Emergent
Features
- Sinks rapidly for bottom-up weed treatment
- Allows immediate water reuse for recreation and irrigation
- Controls a wide range of submerged aquatic plants
- Flexible application for spot or broad area treatment
- Effective against major invasive aquatic weeds
- Granular form for easy application
What customers say
The primary insight from consumer feedback centers on the product's remarkable effectiveness and straightforward application. Users consistently highlight the speed and precision with which Harpoon eliminates targeted aquatic weeds, particularly duckweed and milfoil. This granular formulation simplifies the treatment process, making pond maintenance accessible even for novices. While the initial investment is noted, the reliable, high quality results solidify its strong perceived value among those seeking efficient water clarity solutions.
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