UGA Blueberry Blog

Disease management recommendations following 2019 freeze damage

Following recent freezes in the Georgia blueberry production region, the threat exists for subsequent damage from fungal pathogens. On tissues already damaged by freezes, two fungal pathogens of particular concern are Botrytis and Botryosphaeria.  In addition, root zone saturation from overhead freeze protection/subsequent rainfall can lead to issues with Phytophthora…
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Captan Fungicide Review Process

Captan is under a draft risk assessment in the registration review process and the deadline to submit comments was extended to March 15, 2019. You can submit your comments at this link. We appreciate your supporting comments on the benefits of captan – its role in disease management and in fungicide…
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Mummy Berry Threat is HIGH (as of 2/12/2019)

Recent warmer, damp weather has led blueberry growers in the southern region of Georgia to initiate sprays for mummy berry disease. According to the mummy berry model developed by Dr. Harald Scherm (UGA), there is a HIGH RISK for mummy berry disease initiation in southern Georgia as of February 12th, 2019. …
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Freezing Weather Preparation

The weekend of March 3rd was cold enough to cause damage in southern highbush. Extension agents have observed damage in Pierce and Ware Counties. During the last few weeks, both southern highbush and rabbiteye blueberries have moved through bloom stages rapidly. As we all well know, developing fruit is very…
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Hurricane Irma Aftermath 2017

Early reports suggest that damage to the plants from wind may include toppled plants, broken stems, and loss of leaves. However, rains were heavy and reported to be upwards of 8.5 inches over a 48 hr period in our prime blueberry growing regions of southern Georgia. Many plantings may have…
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Post-Harvest Disease Management for the 2017 Blueberry Season

Post-Harvest Disease Management for the 2017 Blueberry Season Renée Allen and Dr. Phil Brannen Growers have been asking questions regarding what to do about unharvested fruit in the fields and the potential for disease impact on the blueberry crop next year. Concerning mummy berry disease, unharvested fruit will not impact…
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Public Comment on Pyrethroid Insecticides Requested

Dear Blueberry Growers: ALL pyrethroid insecticides (bifenthrin, Warrior/Karate, Mustang Max, Baythroid, Asana, Permethrin, etc.) are currently undergoing registration review at EPA. Nine are specifically being evaluated, but serve as surrogates for all 19 active ingredients. The preliminary evaluation shows that all pyrethroids exceed “Levels of Concern” for exposure to aquatic…
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Webinar on Sustainable Management of Spotted Wing Drosophila

Members of the Sustainable SWD Project will present a webinar online on January 25th at 12-1pm eastern time, highlighting information about control of the invasive insect pest, spotted wing Drosophila. The webinar titled “Making the Most of Your Insecticide Toolbox to Manage SWD” will cover research conducted during the first…
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Mummy Berry Warning

I have reports from the southern region of the state which would indicate that leaves are starting to emerge on rabbiteye blueberries.  This is truly an early leaf emergence for rabbiteyes, likely due to the exceptionally warm weather we are now experiencing.  Blooms may not be far behind.  As such,…
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New Extension Publications Available

Housed on the UGA Extension Publications web site (http://extension.uga.edu/publications/) are three new publications: Home Fruit Orchard Pruning Techniques (C 1087) by Erick Smith, Bob Westerfield, and Dario Chavez is a review of pruning practices for tree, bush, bramble, and vine fruiting plants, including blueberry. Though the title focuses on the…
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