Tag: effective fungicides for alternaria

• Updated Fungicide Recommendations to Manage Alternaria Leaf Spot (Black Spot) on Brassicas

  

  By Tony Keinath, Clemson Plant Pathologist Despite some unusually cold weather in January and February, Alternaria black spot is active on overwintered brassicas. Although the brassica Alternaria fungus (Alternaria brassicicola) present in South Carolina supposedly prefers warm temperatures, I doubt that old information is accurate today. Growers should be on the lookout for tan to…

  Justin Ballew

  March 24, 2026

  Brassicas, Disease

  alternaria, black spot, Brassicas, effective fungicides for alternaria, fungicides, kale, managing alternaria in brassicas, managing black spot in brassicas, Managing black spot in kale