Apple Alert: Blossom Blight Infection

— Written By

The risk of a blossom blight infection event is HIGH for Henderson County (NC) for Saturday, April 14. The risk of a blossom blight infection event is EXTREME for Polk County (NC) for Saturday, April 14 and Sunday, April 15. The risk of a blossom blight infection event for Moravian Falls area is HIGH for Saturday, April 14 and Sunday, April 15.

Blossom blight image

  • High Risk: If there are open blossoms in your block, a high risk of a blossom blight infection event means that 2 of 3 requirements (see Bloom Disease Update )are satisfied for blossom blight to occur. A preventative streptomycin or other bactericide application should be considered prior to a wetting period (dew or precipitation).
  • Extreme Risk: If there are open blossoms in your block, an extreme risk of a blossom blight infection event means that 3 of 3 requirements (see Bloom Disease Update) are satisfied for blossom blight to occur. A preventative streptomycin or alternative bactericide application should be made prior to a wetting period (dew or precipitation).

For a list of registered products for blossom blight control, please refer to the NC State University Fire Blight fact sheet or to the 2018 Integrated Orchard Management Guide for Commercial Apples in the Southeast. 

Written By

Photo of Sara Villani, N.C. Cooperative ExtensionDr. Sara VillaniExtension Specialist (Apple and Ornamental Plant Pathology) (828) 687-0570 (Office) sara_villani@ncsu.eduEntomology & Plant Pathology - NC State University
Updated on May 17, 2018
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