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Scouting Cotton for Bacterial Blight
Bacterial blight of cotton. Note the angular appearance of the lesions. The water-soaked appearance around the lesion is a diagnostic characteristic early in the morning. Last year certainly set the...
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Soybean Rust Detected in a Sentinel Plot and Commercial Soybean Fields in...
Soybean rust distribution within the southern U.S. as of July 16, 2012. On Friday, July 13, 2012, soybean rust was detected in a soybean sentinel plot and 3 commercial soybean fields in George County...
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Wheat Stripe Rust Detected in Mississippi
Current situation Wheat leaf rust compared to stripe rust. As expected, stripe rust was detected in two wheat fields near Greenwood, MS by a Jimmy Sander’s representative on Monday (2/25/2013). The...
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Wheat Disease Update: March 23, 2013
Characteristic pattern of stripe rust. Not aggregated lesions in a “stripe” pattern. Stripe rust (yellow rust) Additional stripe rust has been detected throughout the Delta over the past two weeks....
View ArticleCorn Disease Calendar
Scouting for corn diseases is important regardless of the time of year. Most foliar diseases occur at specific times of the year. However, in some cases, diseases such as southern corn rust can occur...
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How to Determine Growth Stages of Young Corn or Sorghum
V5 Growth Stage. Five fully emerged leaves with leaf collars are present. The first leaf should be counted, regardless of whether it is dead or no longer attached. Corn vegetative growth stages are...
View Article2013 Scout Schools Set
The 2013 Scout School dates have been set. The first will be June 4th from 9:00 a.m -12:00 p.m. at the Delta Research and Extension Center in the auditorium of the main building. The last one will be...
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Early Season Corn Diseases and Non-disease Observations
Prior to Thursday (May 23, 2013) I had not been in vegetative stage corn scouting for the more “normal” foliar diseases. In the six years I had worked for MSU I normally don’t get field calls...
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Corn Disease Update: June 7, 2013, and Specific Information Regarding...
Increased observation of corn foliar diseases have occurred throughout the southern Delta over the past couple of weeks. Much of the corn south of Highway 82 has either started to tassel or will be...
View ArticleVideo – How to Identify Corn Vegetative Growth Stages
Vegetative growth stages of corn or sorghum are determined by counting the number of fully emerged leaves with leaf collars present. Only those leaves which have a leaf collar visible at the base of...
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Soybean Rust Detected in a Soybean Sentinel Plot in Pearl River County
Soybean rust on the underside of a soybean leaf. Tuesday afternoon (7/9/2013), soybean rust was detected in a soybean sentinel plot in Pearl River County on the Poplarville experiment station. The...
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Corn Disease Update and Late Fungicide Suggestions: July 19, 2013
As the corn season winds down I am still receiving numerous phone calls regarding disease incidence as well as when to stop scouting and/or getting concerned about specific diseases. Generally...
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Early Leaf Spot of Peanut
Synopsis: Is caused by a fungus, Cercospora arachidicola. Defoliates infected leaflets fairly quickly. Is one of the reasons, along with late leaf spot, for the development of the traditional two week...
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Identifying Wheat Growth Stages using the Feekes Scale
The Feekes scale is likely the most commonly used system to describe wheat and other small grains’ growth and development stages. Identification and understanding of plant development is important...
View ArticleManagement Practices to Reduce the Development of Fungicide Resistance in...
Over the past several weeks I’ve had several conversations within the agricultural community regarding the management of frogeye leaf spot for the upcoming 2014 season. I’ll try to cover some of...
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Bollworms Plentiful in Young Soybeans
The soybean crop ranges from still in the bag to around V5 stage on average across Mississippi. Over the last 10 days I have received numerous calls (mostly from Delta region) about bollworms attacking...
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Corn disease update June 13, 2014
Anthracnose leaf blight can be observed in the lower corn canopy this year. Scouting for corn diseases can be a daunting task. Looking out over the top of a corn field suggests that no diseases are...
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Diagnosing Nutrient Deficiencies in Mississippi Soybeans
Diagnosing nutrient deficiencies is not rocket science, but can be cumbersome. Many nutrient related issues occur early in season and can sometimes mimic herbicide injury in appearance. In many...
View ArticleArmyworms in Rice, Again!
It appears that 2014 is going to be the year of the armyworm in rice. I have had numerous calls, texts, and Tweets about armyworms in rice over the last week. If you have not had them in your rice to...
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Scouting Cotton for Bacterial Blight in 2014
Since 2011, bacterial blight of cotton has become an almost annual occurrence. However, to our knowledge only light bacterial blight was observed during the 2013 season. The bacterial blight that...
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