• slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
Apples-Covered-in-Dirty-Film.jpg

Apples Covered in Dirty Film

For the past two years our Red Delicious and Cortland apples have been covered with a dirty film. What causes this and what can be done about it?

Sooty blotch and flyspeck are two fungal diseases that can cause the problem you describe. These diseases make the fruit unsightly but do not affect its flavor. Wash off the sooty covering before storing or eating. Infected skins can be removed before eating. Prune the trees to improve air circulation and reduce disease problems. If the problem continues you can apply a fungicide labeled for fruit trees in spring, and through the cool periods of fall. Be sure to read and follow all label directions before using these or any chemicals.

Related

Upcoming Live Events
& Webinars


Feb. 12, 2025
FREE WEBINAR:
Organic Insect Pest Management for Vegetable and Flower Gardens

Register here

Feb. 14-16, 2025
NARI Milwaukee Spring Home Improvement Show
West Allis, WI

Feb. 19, 2025
FREE WEBINAR:
Strategies for Managing Invasive Plants

Register here

Feb. 26, 2025
FREE WEBINAR:
Create a Beautiful Shade Garden

Register here

Feb. 27, 2025
FREE WEBINAR:
How to Select Rain Garden Plants

Register here

March 12, 2025
FREE WEBINAR:
Grow Pollinator-friendly Spring and Summer Flowering Bulbs

Register here

March 19, 2025
FREE WEBINAR:
Be a Waterwise Gardener
Register here


March 22, 23, 29, 30, 2025
REALTORS Home & Garden Show
West Allis, WI

March 26, 2025
FREE WEBINAR:
Succession Planting & Crop Rotation

Register here

March 27, 2025
FREE WEBINAR:
Rain Garden Q & A

Register here

April 2, 2025
FREE WEBINAR:
Container Gardens for Sun & Shade
Register here


April 10, 2025
FREE WEBINAR:
Reinvigorate Your Rain Garden
Register here


May 7, 2025
FREE WEBINAR:
Vertical Gardening
Register here


May 15, 2025
FREE WEBINAR:
7 Steps to Managing Water on Your Property

Register here

June 4, 2025
FREE WEBINAR:
Attracting Hummingbirds

Register here

WATCH ON-DEMAND WEBINARS

Learn More

Book an Appearance

Learn More

Enter to Win 3 Collections of Longfield Gardens
Dahlia Bulbs

ENTER NOW