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Weevils are beetles with long snouts that can damage or kill young seedlings.
The map below shows the current predicted dates of spore maturation and consequently the predicted risk of matching spore release with the susceptible stage of the crop.
Blackleg is the most common and serious disease of canola in Western Australia. It is a sexually reproducing fungus that will overcome cultivar resistance genes.
Grain growers still intending to sow canola have been warned to assess the risk of yield losses if sowing opportunities are delayed, particularly in the low and medium rainfall zones.
Western Australian canola growers continue to rely on open pollinated Triazine Tolerant (TT) varieties.
Western Australian agriculture experiences variability in its winter growing season (May–October): late starts, early finishes and 'dry seasons' with rainfall low enough to cause serious plant and