Target Spot in Louisiana Cotton

Photo 3.  Multiple target spot lesions.

Trey Price, Assistant Professor, Field Crop Pathology, Macon Ridge Research Station Dan Fromme, Associate Professor, Cotton and Corn Specialist, Dean Lee Research Station

Target spot, a fungal foliar disease caused by Corynespora cassicola, has been observed in Franklin, Madison, Tensas, Red River, Natchitoches, and Rapides parishes on many different varieties. I suspect that the disease

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Harvest Checklist for Yield Monitors and Yield Data

Corn Harvest

Harvest Checklist for Yield Monitors and Yield Data

Dennis Burns: Tensas Parish County Agent

Check that all yield monitors have a list of fields, crops and varieties stored in the memory so that field names and crop information is correct and consistent Always start harvest with a clean data card.

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Wheat cultural management in Louisiana

wheat2

by:

Josh Lofton and Steve Harrison, LSU AgCenter

 

As much of the state is just gearing up for harvest of corn, soybeans and grain sorghum, it is time to start preparing for the state’s wheat crop. While wheat planting is still months away, it is this early season management that begins to determine the

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Late-season weather affecting corn crop

by:

Josh Lofton and Dan Fromme, LSU AgCenter

 

 

Over the past several days Louisiana has experienced some severe weather across the state. Most notable was the severe weather of August 11. Damage from this storm has been felt from northern Louisiana through the rice-growing areas of southern Louisiana. While reports of hail have

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Black Root Rot Suspected in Louisiana Soybean

Assistant Professor, Field Crop Pathology, Macon Ridge Research Station

Over the past two weeks, I have received many phone calls and conducted numerous field visits concerning black root rot of soybean. The suspected causal agent is Thielaviopsis basicola, which has primarily been described as a seedling disease of cotton. In 2009, the disease was described

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Preliminary results from on-farm wheat variety demonstrations

Preliminary results from the 2013-2014 on-farm wheat variety demonstrations are listed below. Each trials was through coordination between LSU AgCenter county extension agent of each respective parish and a grower of that parish. These results should be used not independently, but in conjunction with the OVT results to identify varieties that perform well in intensely

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Preliminary wheat OVT results

Steve Harrison, Rick Mascagni, Trey Price, Boyd Padgett, Ronnie Levy, Dan Fromme, Dustin Harrell, Howard “Sonny” Viator, Josh Lofton, Blair Buckley, Kelly Arceneaux, Kylie Carter, Tim Talbot, John Stapp, and Greg Williams

  Preliminary results are attached from the 2013‐2014 official wheat variety trials for commercially available varieties. The results have been divided up between

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Managing Southern Corn Rust in Louisiana

Figure 1. Southern corn rust. Spores are orange.

Primary Author: Clayton Hollier, Plant Pathologist, Department of Plant Pathology and Crop Physiology Boyd Padgett, Regional Director and Plant Pathologist, Central Region Trey Price, Plant Pathologist, Macon Ridge Research Station

We have scouted several corn fields concerning reports of southern corn rust (SCR). These reports and field visits reveal an epidemic of southern rust across

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Bacterial Blight (Angular Leaf Spot) Observed in Louisiana Cotton Fields

Figure 2.  Bacterial blight lesions following leaf veins.

Bacterial blight was once (prior to 1991) a major disease of cotton causing average annual losses of as much as 3.4%. In severe cases, losses ranged from 50 to 70%. From 1991 to 2000, average losses due to bacterial blight averaged 0.1%. Over the past few years, a resurgence of the disease has been noted

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Frogeye Leaf Spot Prevalent in Louisiana Soybean

Figure 2.  Coalescing frogeye leaf spot lesions (note the gray coloration near the centers of the lesions).

Over the past two weeks, many reports of frogeye leaf spot have been coming in from all soybean growing areas in the state. Overall disease severity in susceptible varieties has been light to moderate. The disease is caused by a fungus, Cercospora sojina, and has the potential to reduce yield by reducing leaf area and

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