Field trial evaluates fungicides against leaf blight and head rot in broccoli, highlighting management strategies.
Alternaria leaf blight and head rot (ABHR), primarily caused by Alternaria brassicicola, is an important foliar disease of brassica crops. ABHR symptoms include damping off in seedlings, and in mature plants this pathogen can cause black circular concentric dark spots on leaves, which in severe cases can fall off giving a shot-hole appearance. This report provides data for the field trial where two different fungicide programs were evaluated against A. brassicicola. Results from this trial will provide information on the importance of the timing of systemic fungicides in managing ABHR.
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Kaur et al. (2025) studied this question.
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