White-edged Nightshade Control Guide


Do's and don'ts of white-edged nightshade control

White-edged nightshade, image:  Christian Goninon, DPIPWE

Do's

  • Plan your control program, this will save time and money in the long-run;
  • Consider the impact of your control methods on off-target species, especially if herbicides are used;
  • Ensure machinery and equipment is washed down between sites or prior to contractors leaving site;
  • Get in early - for new infestations, eradicate before the plants reach the flowering stage: once plants begin seeding, control becomes more difficult and expensive;
  • Carefully time your use of herbicide for best results (see Herbicides for White-edged nightshade Control for more information);
  • Revisit and regularly inspect the site and ensure follow-up is undertaken;
  • Use a combination of different control methods.

Don'ts

  • Don't introduce white-edged nightshade to white-edged nightshade-free areas (e.g. by failing to wash down machinery and equipment between sites);
  • Don't start your control program without first planning your approach;
  • Don't allow white-edged nightshade to flower and set seed before treatment;
  • Don't rely on one attempt at removal - follow-up is essential; and
  • Don't plant white-edged nightshade as a garden ornamental.


Spread of white-edged nightshade

  • White-edged nightshade spreads by seed.
  • The fruit is not particularly attractive to birds or animals, and most spread is by fruit in surface water.
  • Spread also occurs in soil contaminated with seed during gardening activities and road-making.
  • White-edged nightshade seed is also occasionally sold for planting as a garden ornamental.


Avoid the introduction of white-edged nightshade

  • Avoid planting white-edged nightshade as a garden ornamental. Remove any white-edged nightshade plants already present in gardens.


Physical removal

  • Individual plants can be dug out. Ensure any fruiting plants are destroyed to avoid spreading seed.


Chemical control

  • Under an off-label permit issued by the Australian Pesticides and Veterinary Medicines Authority (APVMA), there are herbicides registered for the control of white-edged nightshade in Tasmania. See Herbicides for White-edged Nightshade Control for more information.
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