Professional Tree Treatment

ArborFos™

ArborFos™ is a unique phosphite formulated fungicide that works differently from traditional fungicides by stimulating the plant's own natural defense systems. Research indicates it may elicit systemic acquired resistance responses, helping trees develop healthier leaves, roots, and stems.

Signal Word: CAUTION

Active Ingredients

  • Phosphorous acid 45.8%
ArborFos™ phosphite fungicide product box

ArborFos™ Product Box

Product Views

ArborFos™ phosphite fungicide product box
ArborFos™ individual capsule for tree injection systems
ArborFos™ product group with inserter tool for tree injection
ArborFos™ professional size containers for large applications

Available Packaging Options

5 mL capsules
7.5 mL capsules
24 capsules per carton
12 cartons per case
1 liter bottle (ready-to-use)
4 bottles per case

Professional Usage Guidelines

ArborFos™ is a phosphite formulated fungicide that inhibits fungal growth through stimulation of the plant's own natural defense systems. Registered for ornamental, forest and certain crop trees to manage many diseases including root diseases. Research indicates it may elicit systemic acquired resistance responses, helping trees develop healthier leaves, roots, and stems. This environmentally friendly formulation is particularly effective against root diseases and works differently from traditional fungicides. It is recommended to install 1 capsule every 4-6 inches around the circumference of the tree. A quick way to determine the number of capsules needed is to divide the diameter by 2, i.e. if your diameter is 20in you will need 10 capsules.

States Where This Product is Registered

Arizona

Arkansas

California

Colorado

Connecticut

Florida

Georgia

Hawaii

Idaho

Illinois

Indiana

Iowa

Kentucky

Maine

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Hampshire

New Jersey

New Mexico

New York

North Carolina

Ohio

Oklahoma

Oregon

Pennsylvania

Rhode Island

South Carolina

South Dakota

Tennessee

Texas

Utah

Vermont

Virginia

Washington

Wisconsin

Wyoming

Need Professional Guidance?

Our expert team can help you determine the right treatment approach and application methods for your specific tree care needs.