An application of a herbicide to the leaves/foliage of plants is called what?

• A. Foliage Application
• B. Soil Application
• C. Seed Treatment
• D. Trunk Application

Answer: (A)

Applying a herbicide to the leaves or foliage is called a foliar application. This method delivers the chemical directly to the leaf surface, where it is absorbed through the leaf tissue and can act quickly or be translocated to other parts of the plant. It’s chosen when the target weeds have accessible leaves and quick, either local or systemic, action is desired. This is different from soil application, which targets roots via the soil; seed treatment, which coats seeds before germination; and trunk application, which applies to tree trunks for uptake through the woody tissues.