The University of Vermont Apple Team within the Plant And Soil Science Department welcomes you to the

UVM Apple Orchard


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Roundheaded Apple Tree Borer

July 13, 1998 --  The Roundheaded Apple Tree Borer is one of a number of borers that can attack apple trees.   Another borer is the Dogwood Borer.  There are orchard practices that will aid in preventing infestations (i.e., keeping weeds away from base of tree,  white trunk paint, etc.).  At this point in the growing season, certain insecticides sprays that reach the lower part of the trunk will help in management.  Details on management options will appear in the August issue of the Vermont Apple Newsletter.  Please Note -- Borer problems have been associated with the type of mouse guards depicted below:

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DD Accumulations at UVM Hort. Research Center, 07/15/98

  • Base 43: 1808 (from Jan 01)
  • Base 43:  906 (from June 8, start of STLM 2nd moth flight)
  • Base 50: 1167 (from Jan 01)
  • Base 50: 986 (from May 7, 1st Codling Moth trap capture, 2nd generation period predicted at 1260-1370 DD)

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7/8/98: IPM Alert

7/1/98: Vermont Apple Newsletter

6/25/98:  IPM Alert

You are grower # to to visit the UVM Apple Orchard since December 18, 1997


The UVM Apple Program:

Extension and Research for the commercial tree fruit grower in Vermont and beyond...

Our commitment is to provide relevant and timely horticultural, integrated pest management, marketing and economics information to commercial tree fruit growers in Vermont and beyond. Please be sure to visit AIM (the Apple Information Manager) for more regional apple production information. If you have any questions or comments, please contact us.


Jon Clements, Dr. Lorraine Berkett, Dr. Elena Garcia, Gwen Neff, and Roger Brouillette










UVM Apple Orchard Blocks






Special Topics


Virtual Orchard

Apple Leafminer


Scabby McIntosh vs. Scab-resistant Liberty

* 1998-99 New England Apple Pest Management Guide

* Subscribe to Grower E-mail Lists:

VT-APPLE-IPM, is a seasonal e-mail newsletter detailing current orchard horticultural and pest management events in Vermont. To subscribe, send e-mail to with subscribe in the subject line.

Also, GROWER-AIM is an e-mail discussion group for New England apple growers. To subscribe, send e-mail to with subscribe in the subject line.

* Check out AIM (Apple Information Manager): a collaborative Extension and research effort of the Universities of Vermont, Maine, New Hampshire, Massachusetts, Connecticut, and Rhode Island to bring timely, relevant, and useful apple production information to New England apple growers via the World Wide Web. AIM has excellent weather resources and helpful IPM decision making tools that should be of interest to all New England orchardists.

Last Modified = by LPB