WhiteCap Liquid - 8 oz

Season-Long Submersed Weed Control

Control aquatic weeds and grasses in fresh water ponds, lakes, and drainage/irrigation canals with WhiteCap™ SC selective herbicide, a proven reformulation of the popular active ingredient fluridone. WhiteCap effectively controls a wide range of floating, submersed and emersed aquatic vegetation, including duckweed *. 

It’s the least-expensive method of treating an entire pond, easy to apply, safe for aquatic life and lasts an entire season. The herbicide is absorbed by the leaves, roots and stems directly from the water, and it works by inhibiting the weed’s ability to produce carotene, a pigment that protects the plant’s chlorophyll. Without carotene, the sun quickly degrades the green chlorophyll and the weed dies.

* Common duckweed, or Lemna minor, can take over a pond in no time. Growing in dense colonies in quiet, undisturbed water, these tiny free-floating plants, if left unchecked, will blanket a pond or lake over the course of several seasons, depleting the water body of oxygen, destroying fish populations, and killing submerged plants by blocking the sunlight.

Most often, these green invaders are transported to your pond on the feet of waterfowl, such as ducks, geese or even herons. The plants stick to their feet or feathers and can be carried for miles. Though water fowl and some fish eat duckweed, it typically reproduces faster than the animals can consume it

• 8 oz Container Treats 1/4 acre (4-6 ft average depth)
• Absorbed by leaves, roots and stems directly from the water.
• Works by inhibiting the weeds ability to produce carotene. Without this ability, chlorophyll is rapidly degraded by sunlight and the weeds die.
• 7 to 10 days after the initial application you will see bleaching at the growing tips of the weed.
• Results occur slowly - treat early in the season for an entire weed free summer
•  WhiteCap provides the most efficient concentration level and is the ideal choice in water bodies with minimal water flow and when targeting strands of emersed vegetation.
• Full results may take 30 to 90 days.

NOTE: When treating with WhiteCap you always must consider the dilution factor. Dilution comes from pond inlets such as rivers, streams and/or parking lots. In most cases if a pond receive water from outside source it must discharge this extra capacity through an outlet. This outlet will not only take the extra water out of the pond but it will take the Fluridone (the active ingredient in both Sonar and WhiteCap). To have a successful Fluridone treatment you need the product to stay in the water for at least 30 days but 90 days is prefered.

View the MSDS information.

Restrictions: 30 day irrigation restriction. No other water use restrictions - safe for swimming, fishing and/or other recreational uses

Chemicals cannot be shipped to the following states: California, Washington, Maine, New Jersey, New York & Connecticut.