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This Week In the Garden
Holly Scale and Sooty Mold

This week in the garden UT Extension Agent Chris Cooper shows a holly tree that is infested by holly scale. As the holly scale feeds on the sap of the tree, it produces honeydew which the sooty mold – a fungus – grows on. Chris recommends using a soil drench with the active ingredient imidacloprid. This will control the scale. The sooty mold will then disappear on its own over time.

Related Videos:
Scale
Holly Scale and Sooty Mold
Horticultural Oils

Related Resources:
Sooty Mold
The Plant Doctor - Sooty Mold
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  • Home
  • Watch
    • TV Schedule
    • Full Episodes Online
    • How-to and Informational
    • Questions and Answers
    • This Week in the Garden
    • Garden Notes
  • Garden Topic Collections
    • Apple Trees: How-to and Information
    • Peach Trees: How-to and Information
    • Tomatoes: How-to and Information
    • Square Foot Garden Blog
  • Resources
    • Soil Testing
    • Extension Publications
    • Gardening Resources
    • Blogs
    • Organic Gardening
    • Articles
    • Privacy
  • Guests
  • Contact Us
    • Ask a Gardening Gardening Question
  • Search