Scientific name: Thunbergia grandiflora
Description
- Vigorous perennial twining vine growing up to 5 metres long with a large tuberous root system
- Stems become woody with age
- Large rough leaves up to 15 centimetres long and 10 centimetres wide with a pointed tip
- Trumpet-shaped flowers up to 8 centimetres long and 6 to 8 centimetres wide, white on the outside, yellowish inside expanding to five rounded pale lavender-blue petals
- Cone-shaped seed pods 3 to 5 centimetres long with flat brown seeds covered in scales.
Weed status - restricted matter category 3
Includes weeds, pest animals and noxious fish such as gambusia, dingoes and yellow crazy ants.
You must not distribute this restricted matter.
Due to its potential to cause serious economic, environmental or social harm, these weeds are regulated by Council.
We have an annual inspection program for properties in Logan.
Council has the authority to issue a Biosecurity Order to properties with category three restricted matter.
Control method
Foliar Spray
Herbicide is diluted with water at a specific rate, and sprayed over the foliage to point of runoff.
Most suited to shrubs, grasses and dense vines less than six metres tall.
Manual and Mechanical Removal
Manual control uses hands or hand tools to control weeds.
This can be an effective control as it can minimize soil disturbance and can instantly remove the entire weed.
Mechanical control suits larger infestations, using power tools and machinery to reduce the bulk of the problem.
Mechanical control can include slashing, mowing, dozing, harvesting, and felling.
Herbicide warning
Before using any herbicide always read the label carefully and ensure that the chemical is registered for use on the target weed. All herbicides must be applied strictly in accordance with the directions on the label.
