African boxthorn is a woody shrub that can grow up to 6 m tall. Its rigid branches are leafy and end in a hard, sharp spine reaching up to 150 mm long. It has globe- to egg-shaped berries that are orange-red when ripe with up to 70 seeds. Flowers appear singly or in pairs at the leaf-stem junction. They are approximately 12 mm in diameter with five waxy white petals, each with a purplish base. The main flowering period is during summer but flowering and seed production may occur throughout the year.
Controlling African Boxthorn
African Boxthorn is a weed of national significance and is identified as being invasive, having the potential for widespread environmental, social and economical damage. Landowner’s and land managers at all levels are responsible for actively managing this weed.
In all situations, use Access™ Herbicide at 1 L/60 L of diesel as a basal bark application to obtain optimum results. Do not treat during periods of drought stress or when plants are not actively growing. In situations where foliar application is used, always treat actively growing plants. For best results, use Grazon™ Extra Herbicide at 500 mL/100 L of water. Do not treat when leaves drop from the plant when spraying.
Herbicides for control of African Boxthorn
# Note: Preferred product option in bold. * Consult label for details of growth stage and use, especially where range of rates is given.