UGA Blueberry Blog

Blueberry Management Suggestions After 2017 Severe Freeze Damage

By: D. Scott NeSmith, Department of Horticulture, University of Georgia Severe freeze events such as occurred in Georgia March 15-16, 2017 present multiple challenges to growers. The magnitude of the damage varies across locations, but overall in the state the damage is substantial. This is in fact the most severe crop…
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Further Thoughts on Botryosphaeria Stem Blight Disease

After further discussions with Dr. Phil Brannen, I was probably overzealous with my previous recommendation on Botryosphaeria stem blight during the fall season.  I had previously recommended application of a contact and systemic fungicide in the field, such as Captan & Quash or Captan & Indar, etc. It won’t hurt…
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Field Scouting Finds

Spider Mite Damage, more intense Photo credit: James Jacobs, Pierce County Ag Agent Earlier symptoms of spider mite damage Photo credit: Renee Allen, Area Blueberry Agent Recently, this damage has been spotted in highbush fields. The leaves will have this finely speckled brown discoloration.  Usually the presence of spider mites…
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Blueberry Integrated Pest Management Field Day, Tuesday, April 5th

Blueberry IPM   Field Day Tuesday, April 5th 9:30AM -11:00AM Location: Chambers Brothers Blueberry Farm 2270 Fire Tower Road Homerville, GA 31634 Hands-On Scouting & Pest Reminders: Spotted Wing Drosophila & Insects —Dr. Ash Sial, Blueberry Entomologist Fruit Rots & Post-harvest Diseases —Renée Allen, Area Blueberry Agent Tank-mixing & Pesticide Safety…
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Mummy Berry Germination Model Results

Dr. Harald Scherm ran the mummy berry model today, and it indicates that we are currently in a DANGER period for mummy berry disease initiation.  Harald stated that the temperature-driven model indicated that apothecium (spore-forming structure that develops from overwintered mummies on the ground and in debris) emergence should be well underway…
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Mummy Berry Model Prediction

Dr. Harald Scherm has determined the mummy berry potential (germination and development of the apothecia); all southern Georgia blueberries that are showing either green tip or early bloom developmental stages are at high risk for mummy berry infection at this time and going forward. This is especially true as temperatures…
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Response to February Cold Damage and Potential Botryosphaeria Development on South Georgia Blueberries

The following is largely a synopsis of information previously provided by Gerard Krewer (UGA Professor Emeritus and consultant), Bill Cline (NC State), Dave Lockwood (Univ. of TN), Danny Stanaland (retired county agent and consultant) and myself relative a suggested response to cold damage on blueberries and the potential threat of…
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Botrytis Management after the Cold Event

The following information is of value to commercial blueberry producers in the southern part of the state or anywhere that blueberries are in bloom.  We just had a couple of nights of cold temperatures (<25 F) in most parts of our blueberry belt, so this message is especially targeted for…
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