
Forecasts of above-average summer rainfall across Western Australia’s grain-growing regions could increase summer weed growth and allow a green bridge to persist into autumn. GRDC is urging growers to include post-harvest weed control in their plans, as weeds may use moisture and nutrients needed by 2027 crops and help pests and diseases survive between seasons.
More weed pressure could raise control costs and compete with moisture and nutrients available to following crops, but no specific yield or price impact is established yet.
After 1,773 past weather events, Wheat (SRW) moved a median +0.1% over 5 sessions (52% higher; middle half -1.5% to +2.1%), and +0.2% over 20.
Not enough comparable past events yet for a historical read.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.