like the rest of Australia's grain-growing regions, herbicide resistance is now a growing problem in the northern region. Resistance is being spurred on by the fact that growers still have effective herbicide options available to combat weeds. But this won't last long, according to Grain Orana Alliance (GOA) chief executive officer Maurie Street. "With many northern farming systems evolving to continuous-crop systems with nearly 100% reliance on herbicides, resistance at any level is likely to hit hard," he said.
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