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Allen, T.

Additional Fungicide Products Available for Soybean Production Systems – UPDATED 7/28/2014

🕔17:12, 11.Jul 2014

Several new fungicide products are commercially available for soybean productions systems this season. Affiance, Aproach, Aproach Prima, Cercobin, Equation, Fortix, Incognito (4.5F and 85WDG), Overrule, Topsin XTR, and Viathon all have labels for soybean production systems and may be marketed throughout MS for application to soybean plants. Rates, pre-harvest intervals, as well as the active ingredients and links to the full label are included.

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Scouting Cotton for Bacterial Blight in 2014

Scouting Cotton for Bacterial Blight in 2014

🕔06:56, 8.Jul 2014

Once again, bacterial blight has been observed in the MS cotton crop. At present, several fields in the south and north Delta as well as a single field in east MS have been observed to contain bacterial blight infected cotton leaves. To date (July 8, 2014), a single cotton variety has been reported to be infected in all fields.

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The 2014 Mississippi Soybean Disease Monitoring Network

🕔16:24, 3.Jul 2014

Sentinel plots were planted in the spring of 2014 to serve as a source of soybean plants for monitoring important, potentially yield-limiting soybean diseases throughout MS. The sentinel plot network has protected MS soybean farmers for 9 years now. With financial aid from the Mississippi Soybean Promotion Board and the United Soybean Board, the sentinel plots will be scouted for the remainder of the 2014 season.

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Corn Disease Update: June 28, 2014

Corn Disease Update: June 28, 2014

🕔09:27, 28.Jun 2014

Foliar corn diseases continue to be observed throughout the MS corn crop. Common rust, gray leaf spot, northern corn leaf blight, and southern corn leaf blight are all present at low levels throughout the Delta. As of Wednesday (June 25, 2014), southern corn rust had only been observed in southeastern MS (Forrest, George, Greene, Jackson, Perry, and Stone counties).

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Frogeye Leaf Spot Management Suggestions for the 2014 Season

Frogeye Leaf Spot Management Suggestions for the 2014 Season

🕔22:00, 24.Jun 2014

Frogeye leaf spot management continues to be a hot topic during the 2014 season. Scattered reports of frogeye in R3+ soybean fields continue to be made. Most of the questions at this time tend to be regarding fungicide management suggestions at the R3/R4 application timing. Knowing what varieties are planted in fields is one of the most important determining factors since susceptible varieties should be managed differently at R3/R4 than frogeye tolerant varieties.

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Corn disease update June 13, 2014

🕔17:14, 13.Jun 2014

To date this has been a fairly light corn disease year. However, some lesser observed diseases, such as anthracnose leaf blight can be observed on the lowest leaves in some corn fields. Common rust, northern corn leaf blight, and to a much lesser extent southern corn leaf blight can also be observed in some corn fields.

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Delta Research and Extension Center’s Agronomic Crops Field Day, June 17, 2014

🕔13:30, 30.May 2014

A corn, cotton, peanut, and soybean field day is scheduled for June 17th at the Delta Research and Extension Center in Stoneville, MS. The general theme of the field day will include pertinent information for mid-season row crop issues.

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Protecting Your Preflood Nitrogen

Protecting Your Preflood Nitrogen

🕔12:47, 16.May 2014

Maintaining nitrogen applied as a pre-flood application is an important topic for rice farmers. Nitrogen can be lost by at least three different methods, two of which are considered to be bad since the N will become unavailable for plant uptake.

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2014 Insect and Disease Scout School Dates Set

🕔17:05, 12.May 2014

The dates for the 2014 Scout Schools have now been set. We will be providing detailed information on identification, biology, thresholds, and management of the major insect and disease pest of Mississippi row crops. These trainings can also be used to renew your insect and disease consultants license and CEU’s for Certified Crop Advisors will be provided at each. The meetings will also serve as In-Service training opportunities for MSU-ES agents as well. These trainings are great for the experienced and the inexperienced.

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Soybean Seedling Emergence Issues: Environmental Stress Compounding Factors

🕔20:38, 6.May 2014

A substantial number of soybean acres have been reported to be affected by seedling disease. However, the majority of the field seedling issues can be blamed on poor environmental conditions following the planting that occurred around Easter (between April 14 and 19) and some of the residual herbicide products applied.

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Wheat Disease Update: May 4, 2014

🕔15:48, 4.May 2014

Even though additional foliar wheat diseases have been observed throughout MS, I still consider this to be one of the cleanest wheat crops I have seen. At present, extremely low levels of leaf rust have been observed in two locations, stripe rust on a few protected plants in Stoneville, Septoria leaf blotch, glume blotch, and tan spot have all been reported in the MS wheat crop.

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Tips to Improve Rice Fungicide Application Effectiveness

🕔15:06, 3.May 2014

Before the rice season gets into the full swing, consider several important fungicide application strategies before the mid-season fungicide application. Preventing fungicide-resistance from developing is the first step in managing the issue.

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Should You Make a Wheat Foliar Fungicide Application?

🕔15:35, 26.Apr 2014

Decisions to apply a fungicide to wheat should be based on the specific variety planted, response of the particular variety to foliar diseases that could impact yield, growth stage at time of decision, and whether or not the environment has been conducive for disease development. At present, foliar disease that could reduce yield have not been observed in commercial wheat fields.

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Rice Planting Date – Are We Too Late

Rice Planting Date – Are We Too Late

🕔16:06, 25.Apr 2014

Many people ask why continue mundane planting date research don’t we have enough. Truth is, when talking about items such as planting date, and soil testing data that will be modeled, there is never enough data. The more data you

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Bobby Golden Assigned Extension Responsibility for Mississippi Rice

🕔16:03, 24.Apr 2014

Dr. Jeff Johnson, Head of the Delta Research and Extension Center, has assigned responsibility for Extension in rice to Dr. Bobby Golden.  Dr. Golden will serve in this capacity until a suitable candidate is identified for the Rice Agronomist/Extension Specialist

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Wheat Disease Update: April 21, 2014

🕔12:08, 22.Apr 2014

Wheat diseases remain extremely scarce throughout the MS wheat production system to date. No leaf rust, stripe rust, or Septoria have been observed to my knowledge. However, bacterial leaf streak has become a regular observation in most wheat fields.

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Wheat Foliar Disease Update: April 11, 2014

🕔16:52, 11.Apr 2014

Wheat diseases have been essentially non-existent this winter. No rust to report and very little of much any other foliar diseases is great news for our wheat farmers.

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Management Practices to Reduce the Development of Fungicide Resistance in Soybean: Part III, Strobilurin-Resistant Frogeye Leaf Spot in Mississippi

Management Practices to Reduce the Development of Fungicide Resistance in Soybean: Part III, Strobilurin-Resistant Frogeye Leaf Spot in Mississippi

🕔15:16, 11.Apr 2014

Strobilurin-resistant frogeye leaf spot continues to be a topic of conversation. During 2012 two MS counties were confirmed to have strobilurin resistant frogeye leaf spot. Since that time a large survey has been conducted in MS to determine how widespread the resistance is within the fungal population in MS.

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Management Practices to Reduce the Development of Fungicide Resistance in Soybean: Part II, Choosing Fungicide Products and Rates

🕔23:05, 1.Apr 2014

Fungicides have become an important management alternative for diseases such as frogeye leaf spot. However, with the addition of the strobilurin-resistant fungus responsible for frogeye leaf spot, caution must be taken when applying fungicides to not increase the likelihood of fungicide resistance from developing. The specific characteristics of the main fungicide classes labeled for application in soybean systems are outlined. In addition, a table that includes the specific components of the pre-mix products when the labeled rates are applied is included.

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Management Practices to Reduce the Development of Fungicide Resistance in Soybean: Part I, Improving Disease Management Practices

🕔16:12, 29.Mar 2014

Fungicide resistance has continued to be a hot topic during the off-season. Since 2010, fungicide resistance within the frogeye leaf spot fungal population has been documented in several states including Mississippi. To prevent the development of fungicide resistance from increasing several important steps can be followed. Several of these specific topics will be outlined in this three part series regarding fungicide resistance.

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Vegetative Stage Corn Fungicide Applications in the Mississippi Production System: 2013 Large Plot Trials

🕔08:05, 17.Mar 2014

During 2013, several fungicide trials were conducted to determine the benefit of vegetative growth stage timings in corn. Two large plot trials were conducted in east MS with the help of Dr. Dennis Reginelli. In this blog post, the results of two large plot trials were presented from one nonirrigated and one irrigated field setting. Small plot trial data will be reported at a different date.

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Thinking About Planting Medium-grain Rice?

🕔08:35, 11.Mar 2014

In Mississippi, research indicates that management of medium-grain varieties is similar to that of long-grain varieties.

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Late Winter Pyrethroid Applications in Wheat for Aphid Control

Late Winter Pyrethroid Applications in Wheat for Aphid Control

🕔14:15, 12.Feb 2014

Over the last several years we have seen a consistent response in wheat yield when a pyrethroid was used during the late winter months (late January-February). Often when this application goes out it is very difficult to find aphids at

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Future of Agriculture Graduate Student Competition Results

🕔10:59, 11.Feb 2014

The results from the Second Annual Future of Ag Graduate Student Competition are included in this post.

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2013 Soybean Variety Trial Disease Ratings: Maturity Group V Frogeye Leaf Spot and Cercospora Blight

🕔23:02, 26.Jan 2014

Included in this blog post are ratings collected for frogeye leaf spot as well as Cercospora blight from the 2013 Maturity Group V soybean variety trials. Trials were conducted in Brooksville, Clarksdale (irrigated), Falkner, Longwood, Olive Branch, Raymond, Stoneville (clay and loam). The conventional/LibertyLink trial was only conducted at the Brooksville, Falkner, Longwood, and Stoneville (clay) locations. Ratings were collected based on a 0-9 and are presented from each location for each variety so a range of ratings is available across all environments encountered during the 2013 season.

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