The University of Vermont Apple Team within the Plant & Soil Science Department welcomes you to the
The UVM Apple Program:
Research and education for the commercial tree apple grower in Vermont and beyond...
Dr. Lorraine Berkett, Professor Emerita
Terence Bradshaw, Research Technician
Sarah Kingsley-Richards, Research Technician
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Check out this website on Organic Apple Production....
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The Network for Environment & Weather Applications (NEWA) is a web-based
resource through
Cornell University which provides up-to-date weather data and IPM tools
such as growing degree day accumulations and disease and insect forecast models
for various sites in Vermont. Please go to http://newa.cornell.edu/ to find the closest weather station
to you to track DD accumulation, apple scab ascospore maturity and other disease and insect models.
2012
Apple Bud Stages at the UVM Hort. Research Center ![]()
Observations from Orchards
being managed with Organic Methods at the UVM Hort. Res. Center![]()
Critical
Spring Temperatures![]()
| Bud Stage | Silver Tip |
Green Tip |
Half-inch Green |
Tight Cluster |
First Pink |
Full Pink |
First Bloom |
Full Bloom |
Post Bloom |
| Ave. temp. for 10% kill2 | 15 |
18 |
23 |
27 |
28 |
28 |
28 |
28 |
28 |
| Ave. temp. for 90% kill2 | 2 |
10 |
15 |
21 |
24 |
25 |
25 |
25 |
25 |
1For Red Delicious, Golden Delicious and Winesap approximately one degree hardier;
Rome Beauty, two degrees hardier, except after Petal Fall when all varieties are equally tender
2 Avg temperatures found by research at the WSU Res. and Ext. Center, Prosser, to result in 10% and 90% kill
A resource that includes the above apple information with colored photos of bud stages and information on other tree fruits is at:
http://orchardkeeper.com/pdf/IllustratedSpringFrostDamageThresholds.pdf
IPM Alerts
Vermont Apple IPM Alert,
May 25, 2012
Vermont Apple IPM Alert,
May 18, 2012 - SPECIAL ASCOSPORE ALERT
Vermont Apple IPM Alert,
May 14, 2012
Vermont Apple IPM Alert,
May 1, 2012
Vermont Apple IPM Alert,
April 30, 2012 - FROST INJURY - CROP INSURANCE REPORTING
Vermont Apple IPM Alert,
April 24, 2012
Vermont Apple IPM Alert,
April 17, 2012 - FIRE BLIGHT
Vermont Apple IPM Alert,
April 13, 2012
Vermont Apple IPM Alert,
March 29, 2012
Vermont Apple IPM Alert,
Jan. 19, 2012 - Crop Insurance Information
Vermont Apple IPM Alert,
Jan. 16, 2012
Vermont Apple IPM Alert,
Jan. 11, 2012 - A Special Request
Vermont Apple IPM Alert,
Jan. 4, 2012
Please see archived
IPM Alerts for 2011
[Note: The Vermont Apple IPM Program is being supported by a USDA Extension IPM grant, a Specialty Crop Block grant from the Vermont Agency of Agriculture, a grant from the USDA Risk Management Agency to reduce orchard risks, and a grant from the Vermont Tree Fruit Growers' Association. Thanks go out to all of these organizations !]
Articles of Interest ......
NEWA - Tools for IPM by Dr. Juliet Carroll, Cornell University, VTFGA/UVM Apple Workshop Presentation, Feb. 8, 2011
Early Season Pests by Dr. Art Agnello, Cornell University, VTFGA/UVM Apple Workshop Presentation, Feb. 8, 2011
Summer Pests by Dr. Art Agnello, Cornell University, VTFGA/UVM Apple Workshop Presentation, Feb. 8, 2011
Dr. Renae Moran's 2010 VTFGA presentation on Apple Tree Nutrition
"OP Alternatives in Apple Arthropod Management" by Dr. Art Agnello, Cornell University, VTFGA/UVM AppleWorkshop Presentation, Feb. 26, 2008
Human Resource Considerations In Hiring by Jericho Bicknell, UVM Extension Risk Management Coordinator
Apple Orchard Information for Beginners
IPM 'Quick' Summary for Monitoring Apple Arthropod Pests
A Synopsis of Key Arthropods and Diseases Affecting Apples
Economic Significance of Organic Fruit Production in New England, the US, and the World
A Quicker Way to Determine Scab Risk in Your Orchard
Does Surround Have Non-target Impacts on New England Orchards?
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Archived
"What's New in 2011"
Archived
"What's New in 2010"
Archived
"What's New in 2009"
Archived
"What's New in 2008"
Archived
"What's New in 2007"
Archived "What's New in 2006"
Archived "What's New in 2005"
Archived "What's New in 2004"
Archived "What's New in 2003"
Archived "What's New in 2002"
Archived "What's New in 2002"
Archived "What's New in 2001"
Archived "What's New in 2000"
Archived "What's New in 1999
Webpage: LPBerkett