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This Week In the Garden
Spraying Dormant Oil

This week in the garden retired UT extension agent Mike Dennison demonstrates how to apply dormant oil to a crape myrtle tree. This procedure is also applicable to other ornamentals and shrubs. Spray to the point of runoff. Dormant oil will tend to separate from the water in the sprayer tank so make sure you shake it regularly to keep it in suspension.  Do not spray less than 48 hours before a hard freeze. The water in the spray may freeze injuring the plant. As always read and follow label instructions for mixing and applying dormant oil.

Related Videos:
Horticulture Oils
Crape Myrtles
Treating Crape Myrtle Bark Scale

Related Resources:
Pest and Disease Control Using Horticultural Oils
Horticultural Oils – What a Gardener Needs to Know
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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