METHODS OF HERBICIDE APPLICATION By Georgia Huff Forestry Science I Modified by Georgia Agricultural Education Curriculum Office July, 2002
OBJECTIVES: Describe aerial herbicide application. Describe ground herbicide application. Describe foliar spray application. Describe cut surface treatment. Demonstrate cut surface treatment. Solve herbicide calibration problems.
MENTAL SET: What is an undesirable species? How do we control or get rid of it? What are some methods of control? Why is safety so important?
METHODS OF HERBICIDE APPLICATION: Aerial Applied by helicopters Excellent for large areas Ground Most precise Good for small/sensitive areas Backpack Foliar Sprays Adaptable for small landowners
CUT SURFACE TREATMENTS: Widely used method for killing unwanted trees during site preparation Used in combination with other methods
TYPES OF CUT SURFACE TREATMENTS: Tree Injection Basal Bark Treatment Frill or Girdle Treatment Hack and Squirt Cut Stump Treatment
Key points to cut surface treatments: Follow the labeled rates! Calibration is important! Cuts should be made in the form of a cup. Best applied to trees greater than 2” DBH. Adaptable to small landowners. Low equipment costs. Intensive labor requirements.
REVIEW: What is an undesirable species? What is a weed? What is green junk? What are two ways to control hardwoods? What are some methods of herbicide application? SAFETY FIRST!!!