Plant Pathology
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Many situations are occurring in crops over the last week or two. Corn harvest has begun and is progressing well between some rain events. Cotton Update: A few more fields have reached the silverleaf whitefly (SLWF) threshold this week. This pest is starting to spread out further in the county, so keep an eye out…
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Dr. Bob Kemerait, UGA Peanut Pathologist If the growing season was like a football game, many of our growers would now be early in the 3rd quarter. Our home team is the “Peanut Crop” and today we would be playing the “Pests”, a team primarily composed of weeds, insects, diseases, and nematodes. The “Pests” tend…
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Southern corn rust and corn tar spot is present in southwest Georgia, but a majority of corn in the county is nearing full maturity, so the diseases should not affect potential yield. But, late planted corn should be scouted and treated if necessary. Conditions have been near perfect for diseases in peanuts and cotton to…
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As of yesterday (6/21/23), Southern corn rust is now confirmed in two counties in Georgia (Clinch and Grady). See the picture of the map below for the locations of southern corn rust. For current map status, go to: https://corn.ipmpipe.org/southerncornrust/. Growers should consider protecting corn that is in the VT (tassel stage) through the milk stage.…
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We have had plenty of rain throughout the county the last couple of weeks, so many fields are too wet for ground equipment and conditions are good for the spread of crop diseases. Following is a crop disease update from Dr. Bob Kemerait, UGA Extension Plant Pathologist: The mention of trade names in this blog…
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The peanut fungicide program is a topic that is on the minds of many growers that planted in late April and early May. Most peanut acres have been planted at this point, but those earlier fields are nearing the start of the fungicide spray program. A grower may ask, “How do I start my peanut…
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Corn Disease Update from Dr. Bob Kemerait Cotton and Peanut Issues In the last couple of weeks, we have made many field visits for cotton and peanuts in regards to plant stands. More seedling disease and seed rot, in some cases, have resulted from cooler temperatures and cool, damp soil conditions in the month of…
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Know Your Risk and Plan for It Planting of cotton and peanuts is still progressing in the county. Many fields have been planted already. We have been encouraging the use of risk models for peanuts for quite some time now, and there is also a risk model for cotton. Peanut Rx is available online for…
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Corn in the county is growing well and we have not seen many issues with diseases to this point. Worth Extension is participating with Dr. Bob Kemerait, UGA Plant Pathologist, in collecting sentinel corn samples to check for disease (on a weekly/biweekly basis). Some of the earlier planted corn is already tasseling and silking. It…
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Thrips and TSWV Management Reminders for 2023 – Dr. Mark Abney, UGA Peanut Entomologist Peanut planting time has arrived in Georgia, and that means thrips season is here as well. Many of the decisions a peanut grower makes at planting will affect the risk of thrips infestation and the risk of Tomato spotted wilt disease.…