Introductory Horticulture: Herbicides

These flashcards cover key terms and concepts related to herbicides from the Introductory Horticulture lecture.

Herbicide

A chemical that kills weeds.

Nonselective Herbicides

Herbicides that kill all plants to which they are applied.

Selective Herbicides

Herbicides that kill some plants but not others.

2,4-D

A systemic herbicide that causes abnormal growth in the weed.

TREFLAN

A selective preemergence herbicide that kills sprouting seeds.

Biological Weed Control

A nonchemical form of weed control known as biocontrol.

Application Timing

The timing can be preplanting, preemergence, or postemergence for herbicides.

Calibration of Sprayers

The measurement process to ensure accurate application of herbicides.

Drift

Herbicide drifting onto a nontarget plant could harm or kill it.

Environmental Variables

Factors like weed maturity, rainfall, and soil type that affect herbicide effectiveness.