An ugly apple? These could be mistakes

In Kentucky, it was time for the Apple harvest, which made it less likely to be perfect apples. One of the many reasons for the missing, ugly apple is somatic droplet and / or fly explosion. The two fungal diseases together are often called “soy flies”. Hygiene, traditional practices, and fungicides all play a role in disease management.

Sooty Blotch & Flyspeck Facts

• Signs of soy spoilage include irregular spots from dark brown to olive (Fig. 1, black arrow). Pseudomonas aeruginosa can be seen in dark places.

• Flippeck symbols appear as sharp, black, shiny dots gathered into clusters (Figure 1, red arrow). These black spots are pseudothecia.

• Soy and flaxseed can occur separately, but usually grow together (Figure 1).

• Infections can occur in the summer or fall.

• Both pathogens spread on fallen fruits, dried fruits (mummies), and cracks on bark and dead wood.

• Pathogens are limited to surface and fruit areas. The flesh of the fruit is not affected.

Management options

• Remove and discard sick fruits that help reduce immunity.

• At the end of the season, remove fruit from the ground, as well as cans and dead wood that may contain fungi.

• Homeowners and small-scale farmers can carry apples in bags to prevent disease (ENTFACT-218).

• Homeowners should report fungi containing capita or mangozeb immediately after the spring fall and every 10 to 14 days until harvest. Always follow account instructions.

• Business farmers must apply for ID-232 for fungal drug advice.

Additional Information

• Apple Fruit Diseases (PPFS-FR-T-2)

• Fruit, Garden and Vineyard Hygiene (PPFS-GEN-05)

• Garden Pests and Pesticides (Low Spray, No Spray and Organic Alternatives) (PPFS-FR-T-21) using cultural practices

• Simple Garden Apple Spray Instructions (PPFS-FR-T-18)

• The effectiveness of antifungal drugs in controlling apple disease (PPFS-FR-T-15)

• Commercial Fruit Pest Management Guide (ID-232)

• Bag Apple-Alternative Pest Management for Hobbies (ENTFACT-218)

For more information, call the Laski County Cooperative Expansion Service at 606-679-6361 and request any publications from the University of Kentucky above.

Become a fan of Lula Laski County Gardening on Facebook and follow @hortagentbeth on Twitter, Instagram on kyplants, and follow us on YouTube at Plasky County Garden.

The Lalaski Co. Extension Office is normally open to the public Monday through Friday from 8 a.m. to 4:30 p.m.

A.D. Imagine becoming a Cumberland gardener by 2021. The program runs from September to December. For more information, go to the Lalaski County Extension website, click on ‘Gardening’, then click ‘Master Garden’.

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