Thornapple control

Access all the information needed for control of this noxious weed, including weed identification, herbicide application and spray timings.


Thornapple description

Thornapple identification

Thornapple usually grows to around 1.5 m in height and produces a globular fruit about 4 cm diameter with a circular crown on top and approximately 100 spines of variable length.

The leaves and stems are hairless or sparsely hairy, ending in white to lavender-coloured, trumpet-shaped flowers that grow to about 6–10 cm in length.

Thornapple control

Controlling thornapple

Cultivation combined with a chemical treatment can be used for limited infestations as well as hand-pushing tilling tools to remove the plant.

For more extensive thornapple infestations, it is recommended to use Tordon 75-D at 1.5 mL/1 L of water with a foliar spray.

Herbicides for control of thornapple

Product#Method of applicationRate*State
Tordon® 75-D Herbicide Foliar spray 150 to 300 mL/100 L of water NSW, Qld
Colex-D® Herbicide Foliar spray 445 mL/100 L of water All
FallowBoss® TORDON® Herbicide
Boom application 1 L/ha NSW, Qld
Colex-D® Herbicide Boom application 2.23–3.3 L/ha All

# Note: Preferred product option in bold.  * Consult label for details of growth stage and use, especially where range of rates is given.

Treatment timing

Timing for thornapple control

Treat while plant is actively growing to achieve maximum uptake of the chemical.

Tordon® 75-D Herbicide
Key: Best time to spray/treat Can spray/treat if conditions are suitable Do not spray/treat