Disease
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Anthracnose, bacterial leaf scorch, nutrient imbalance and mites are common causes of leaf scorch. Starting this July, we started seeing leaf scorch in our mature trees. When we see scorch, the UGA Plant Disease Clinic can confirm if a pathogen is the cause. Bacterial leaf scorch is generally found a one or a few varieties.…
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If you would like to have the scab from your orchard screened for fungicide resistance to the fungicide chemistries used on pecan, Dr. Clemen Oliveira has provided the following protocol: Collect 10-20 young LEAVES/SHOOTS from 6-10 trees in the orchard block. Place them in a PLASTIC bag (no paper). Fill out the form at the…
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If you are spending much time in pecan orchards composed of Desirable and Pawnee trees right now, you can likely find at least a little scab on a few nuts here and there if you look hard enough. In some cases, you will find a lot more than you would like to see. Our wet…
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The summer solstice just passed and we are about half-way through the 2026 pecan season. As each year does, 2026 has come with its own set of conditions. Overall, I would say that over the state as a whole, the crop looks a little better than last year. Our pecan bloom appeared strong in April…
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I’ve had many phone calls over the last couple weeks regarding the scab development on pecans in well sprayed orchards. Having been on the Miravis Top/Dodine-Tin rotation since June, growers are asking what they need to spray to stop it. In most cases, the problem we are facing is not that the fungicides don’t work.…
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A note from UGA Pecan Breeder Dr. Patrick Conner on a recent observation of scab on ‘Avalon’: ‘Avalon’ pecan was released in 2016 because of its high yields, good nut quality and excellent scab resistance in trial orchards. In the last five years ‘Avalon’ has become a widely planted pecan cultivar in Georgia and is…
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See the link here for 2025 UGA Pecan Spray Guides . See link here for 2025 County Meeting Presentations This information and more can be found at the UGA Pecan Website
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We haven’t seen phytopthora be a problem in pecans since the late 1980’s and then it was primarily located in the Ft. Valley area and we have not seen it develop yet this year but I had a conversation with UGA plant pathologist, Tim Brenneman recently, and he suggested that conditions over the last 2…
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