Shoreline Defense®

  • Broad Spectrum Emergent Weed Killer
  • Kills Down to the Roots of Persistent Weeds
  • Long Term Control Over Cattails or Plants Above the Water



Shoreline Defense works on emergent aquatic weeds, including cattails and phragmites, and other shoreline vegetation. Shoreline Defense kills weeds down to their roots. For best results, apply Shoreline Defense while the chosen weed is in its active growing stage. For cattails, it is best to apply during late summer to early fall.

Reactive treatments such as algaecides, herbicides, and mechanical tools can help control unwanted weeds or algae and are a key step in the Airmax Ecosystem, a simple 3 step approach to pond and lake management. The Airmax Ecosystem is the industry-leading method to achieve a clean, clear, thriving aquatic ecosystem. Learn more about the Airmax Ecosystem.


Video – Shoreline Defense

Video – Airmax Ecosystem

Weed Control

Airmax Ecosystem

Product Label – 32 Ounce

Product Label – 1 Gallon


Weeds Treated

Creeping Water Primrose
Purple Loosestrife
Alligator Weed
Shoreline Grasses
Alligator Weed
Water Lettuce
Water Hyacinth
Water Shield

How to Use

Shoreline Defense - 32 Ounce

32 Ounce
Shoreline Defense - 1 Gallon

1 Gallon
Application Liquid Liquid
Temperature Restriction None None
Square Footage Per Container Up to 10,000 sq ft Up to 40,000 sq ft
Shelf Life 2 Year 2 Year

Dosage Rates

Treatment Area Shoreline Defense Water Treatment Booster Plus
2,500 sq ft 8 Ounce 2 Gallons 4 Ounces
5,000 sq ft 1/2 Quart (16 Ounce) 4 Gallons 8 Ounces
7,500 sq ft 3/4 Quart (24 Ounce) 6 Gallons 12 Ounces
10,000 sq ft 1 Quart (32 Ounce) 8 Gallons 16 Ounces

Please note: Above are recommendations. Always read the product label.


When to Apply

Shoreline Defense should be applied to target weeds while they are active and growing. The active ingredients in Shoreline Defense will be absorbed by the plant, where it travels to the roots killing the entire plant.

How to Apply

Mix the desired amount of Shoreline Defense and pond water in accordance to the label directions. Using a pressurized sprayer; spray the Shoreline Defense mixture directly onto target weeds. Use with Treatment Booster Plus for best results. Treated weeds will begin to brown and die. Once weeds are completely dead, cut and rake them away to prevent an accumulation of plant decay and pond muck.

Water Use Restrictions

Shoreline Defense carries no water use restrictions.

State Restrictions

Shoreline Defense can not be shipped to Alaska, Arizona, California, Canada, Connecticut, District of Columbia, Hawaii, Maine, New Jersey, New York, Puerto Rico, Rhode Island, Vermont or Washington.

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Accessories & Related Items

Item Numbers and UPC

Item Number UPC Code Size
530157 811262014342 32 Ounce
530167 811262014366 1 Gallon