Vegetable Production Guide

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Weed Control

This section was updated - 13 April 2021

Cultivation with a light harrow or finger weeder is the most effective way of controlling weeds prior to crop emergence. Use of this treatment just prior to crop emergence prolongs the period of effective pre or post emergent chemical weed control.

Numerous chemicals are available for weed control. Most treatments are applied by sprayer using low pressure (200 to 275 kPa) (30 to 40 psi) in 300 to 500 L/ha (120 to 200 L/acre) of water. See Table 1 Weed Control.