Small Grains
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I have been getting questions about aphid thresholds in oats and other small grains. Growers or scouts should inspect fields 25-35 days after planting, full tiller, and heading. Yield-reducing transmission of Barley Yellow Dwarf virus can occur during the first two periods; transmission at heading is too late to reduce yield. According to the 2020…
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I have received a question or two about Tan Spot (formerly Helminthosporium) in local wheat. Tan spot has been noticed in a few area wheat fields and these fields range from boot to early heading stage of development (Week of April 4, 2020). The pictures below are examples of Tan Spot that I have been…
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Below is a Georgia Quick guide that contains good production information on grain sorghum production. Georgia Grain Sorghum Production Quick Guide Below is a list of Sugar Cane Aphid Tolerant Varieties. List of Sugar Cane Aphid Tolerant Varieties
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In this issue: “Three Way” Defoliation Rates and Defoliant Rainfast USDA Cotton Varieties Planted in 2017 Diplodia Collar Rot in Peanuts UGA Recommended Wheat Varieties for Fall Planting, 2017-2018 “Three Way” Defoliation Rates and Defoliant Rainfast: I have been receiving a question or two about the rates for the “’three way” and how rainfast…
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Helminthosporium in Rye Before Christmas Holidays, we looked at a couple of winter rye fields that were having problems with the lower leaves dying on the plants, and the younger leaves exemplifying numerous necrotic spots. These symptoms were caused by a stressed derived pathogen called Helminthosporium. This disease is the causal agent of the leaf…
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The Georgia 2014-2015 Small Grain Performance Tests report (AP100-7) has been finalized and is available on the Variety Testing web site: Small Grain OVT Data on the web site are in PDF format and require the use of Adobe Reader. To access PDF files using an iPad, iPhone, or Android device, you must have an…
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I have been getting calls and questions about sugar cane aphids in grain sorghum. Below are some thoughts from Dr. David Buntin, UGA Entomologist, about sugar cane management in grain sorghum. Treat when aphids reach threshold levels. Several threshold levels are being used in the Delta region for 2015. One conservative threshold is 25% infested…
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Last year sorghum producers struggled with sugarcane aphid in Colquitt County. I received questions about how to manage sugarcane aphid and some fields were treated for this pest. Dr. David Buntin, UGA Entomologist, has some management tips for sugarcane aphid. Management Practices for SCA Aphid 1) Plant early – Although the aphid was not in Georgia…
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The Colquitt County area has had rain this week and the area wheat crop is around Feekes stage 10 of development. This has sparked some questions and concerns about fusarium head blight. Below are some questions that I have been getting about this subject and would like to thank Dr. Alfredo Martinez, UGA Plant Pathologist, for…
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I have been getting a few questions about wheat production over the last few days. The first set of questions concern weed control. Area growers need to determine growth stage of their wheat crop in order to select herbicide options. Below is a figure that shows wheat growth stages and herbicide timing based on wheat growth stages. Currently, (second…
Posted in: Small Grains