Disease Management
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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 anything if you have already…
Posted in: Disease Management -
Spider Mite Damage, more intense Photo credit: James Jacobs, Pierce County Ag Agent Earlier symptoms of spider mite damage Photo credit: Renee Holland, 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 can be confirmed using a…
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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 Holland, Area Blueberry Agent Tank-mixing & Pesticide Safety —Jeremy Taylor, Clinch County Ag…
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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 based on the balance of…
Posted in: Disease Management -
Posted in: Disease Management
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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 warm up next week and…
Posted in: Disease Management -
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 Botryosphaeria canker development on damaged…
Posted in: Disease Management -
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 those producers. Where cold-damaged blooms/shoots…
Posted in: Disease Management -
I have recently had a few questions relative use of Sulforix on sites with no history of Exobasium leaf and fruit spot. For the most part, if your blueberries have never shown Exobasidium symptoms before, it might be overkill to apply Sulforix. We think the disease builds up over a period of 2-3 years,…
Posted in: Disease Management