Blackleg Risk Assessor fact sheet

The blackleg fungus Leptosphaeria maculans is the most damaging disease of canola and juncea-canola in Australia. In some circumstances this disease can cause up to 90 per cent yield loss. This Risk Assessor has been designed to help growers make the right choices prior to or at sowing in order to minimise the risk of blackleg. The severity of blackleg is influenced by several factors and the effect of these factors varies between regions. Use the Risk Assessor to determine if your paddock is a high risk situation and what practices can be changed to reduce yield loss caused by blackleg.

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