Last Year’s Small Fruit Diseases Equal This Year’s Disease Risk

Disease presence last year can indicate a risk for the same disease this year. Many pathogens overwinter on infected plant material or as pathogen survival structures. Poor sanitation practices can lead to an increased risk of these diseases in the upcoming season. A record of small fruit samples submitted to University of Kentucky Plant Disease Diagnostic Laboratories in 2020 are displayed here. The most common diseases of small fruits (blueberry, blackberry, grape, raspberry, and strawberry) were leaf spots and root/crown rots (Phytophthora, Colletotrichum) (Figure 1).

Figure 1: A summary of typical small fruit (blueberry, blackberry, grape, raspberry, and strawberry) disease samples submitted to UK Plant Disease Diagnostic Laboratories in 2020.

Assessment of diseases likely to occur during the growing season provides the opportunity to utilize preventative management measures. The University of Kentucky Plant Pathology Department provides numerous publications with additional information and management options for these diseases. County Extension agents also provide information on disease diagnosis and management.

Resources

  • Blueberry Root Rot (PPFS-FR-S-19)
  • Phytophthora Root Rot of Brambles (PPFS-FR-S-07)
  • Black Rot of Grape (PPFS-FR-S-16)
  • Backyard Berry  Disease Management Using Cultural Practices (with Low Spray, No Spray, & Organic Options) (PPFS-FR-S-25)
  • Backyard Grape Disease Management Using Cultural Practices (with Low Spray, No Spray, & Organic Options) (PPFS-FR-T-24)
  • Commercial Fruit Pest Management Guide (ID-232)
  • Homeowner’s guide to fungicides (PPFS-GEN-07)
  • Fruit, Orchard, and Vineyard Sanitation (PPFS-GEN-05)
  • UK – Disease of Fruit Crops, Ornamentals, & Hemp Facebook Page (Link)

By: Kim Leonberger, Plant Pathology Extension Associate and Nicole Gauthier, Plant Pathology Extension Specialist                                                                                                                                                                                           

Posted in Fruit