What is the Quick Test

The Quick-test is a simple method by which plants (grasses and some broadleaf weeds) growing in your paddock can be tested for herbicide resistance. The test takes 4 weeks to complete.


How old can the plants be?

The Quick-test will work on plants from seedlings to advanced tillering as long as the plants are green and healthy.

Transplanted plants with new leaves are sprayed in a cabinet sprayer.


When can plants be sampled?

Plants can be sampled either before a herbicide application (eg. break of season) or after herbicides have been applied and weeds aren’t killed.


Sampling for Quick-Test

It is important to provide accurate details where the plants were collected from during registration.

  • Collect 50 to 100 plants per paddock, aim to collect 20 plants per herbicide test.
  • Collect plants suspected of being resistant if collected after a herbicide application.
  • Carefully pull out plants and shake off soil from roots.
  • Wrap in a couple of sheets of paper toweling.
  • Too much paper towel can dry small plants out.
  • Do NOT wash plants.
  • Place the wrapped plants in a waterproof plastic bag eg. a sealed sandwich bag.
  • Keep in fridge until ready to post.
  • Mail to P. Boutsalis using Australia Post (Express Post) at the address above.
  • Aim to post at the beginning of the week so plants are received within the week.


Registering the plant sample

Visit www.plantscienceconsulting.com.au and register your sample (s) by choosing the “Weed Resistance Quick – Test” button. At the end of the registration process a sample ID will be generated. Write the ID number on the sample bag.



Once the testing is completed a report will be generated and emailed to you including a tax invoice.



Submit a Test