Improving the value & sustainability of Esperance port zone grain growers.

Upcoming Events

Summer weed workshop
Friday 08 February 2019

Efficient summer weed management workshops

The broad suite of summer weeds present in the Western Australian grainbelt can make management decisions difficult and it is important to identify species early and correctly.

This maximises the effectiveness of summer weed control by allowing growers to select appropriate techniques that can be used on small, actively growing weeds.

Summer weed workshop will be held in Esperance on February 8 – the first in a series of hands-on events in the WA grainbelt.

These workshops have Grains Research and Development Corporation (GRDC) investment and are the result of GRDC Regional Cropping Solutions Network (RCSN) groups highlighting summer weed control as a major limitation for grain growers.

Andrew Storrie, of AGRONOMO, is organising the events, with assistance from Department of Primary Industries and Regional Development (DPIRD) weeds researchers Catherine Borger and Alex Douglas, as well as local grower groups.

Mr Storrie said summer rain in WA cropping areas was a frequent occurrence in recent years and growers needed to not only identify weed species early, but to ‘speak the same language’ when referring to them, as common names varied from place to place.

“While it is relatively simple to identify weeds when they are flowering, correct identification of seedlings is a bit more of a challenge,” he said.

“Every grower understands that big weeds are harder to control and that in summer the weeds grow faster and can set seed in a matter of weeks.

“Big weeds also use more soil water and can cause problems at seeding. Therefore, waiting until identification is easier is not the best option.”

Growers attending the workshops will get the chance to try their hand at early weed identification, using live specimens, and will be shown identification short cuts and handy tools to use.

Mr Storrie will also cover how to get good control of summer weeds using 2,4-D, under the new regulations relating to this herbicide.

“Using very coarse or coarser spray quality could pose a few problems with some tank mixes, depending on the herbicide’s mode of action. We will run through selecting the best nozzles for the job and discuss the dos and don’ts of various tank mixes for dominant local weed species,” he said.

“A local grower using weed management innovations will be present to discuss why they have gone down that particular path.”

Alex Douglas from DPIRD will cover results from WA weed surveys in recent years and present specific management programs for common locally-found weeds.

These surveys, carried out by DPIRD with GRDC investment, have highlighted the variability of summer species incidence from year-to-year.

Mr Storrie said that, in addition to information about plant identification, the workshops will provide advice about:

  • Why it pays to control summer weeds early
  • Best management practices for summer weeds, including presentation of local trial results
  • Better summer spray application
  • The new regulations on the use of 2,4-D and how it affects summer spraying
  • How to get the best control and stay within the regulations
  • Which herbicides will work in a tank mix using a very coarse spray quality
  • New technologies.

The workshops will be held from 1pm to 5pm.

To register or for more information, go to, or contact Mr Storrie on 0428 423 577 or This email address is being protected from spambots. You need JavaScript enabled to view it..

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Upcoming Events

Summer weed workshop
08 Feb @
SEPWA Harvest Review
15 Feb @ 08:00AM -
2,4-D Product update and application day
22 Feb @
North Mallee Updates
14 Mar @ 08:00AM - 05:00PM

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