Events Calendar

November  2014
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North Mississippi Research and Extension Center’s Agronomic Row Crops Field Day on Thursday, August 7

The North Mississippi Research and Extension Center’s Agronomic Row Crops Field Day on Thursday, August 7 will present the latest research to the area’s row-crop farmers and consultants. The field day will be from 8 a.m. to 1:30 p.m. at the Lee County Agri-Center Magnolia Conference Center on Highway 145 South in Verona.
. . . → Read More: North Mississippi Research and Extension Center’s Agronomic Row Crops Field Day on Thursday, August 7

Checking peanuts? Take your shovel! Unlikely southern blight* expression found in south Delta.

Yesterday we found our first southern blight* damage to peanuts for 2014. The timing is not unusual, we generally start finding the disease when the crop canopy closes. What is unusual is where on the plants the disease was found.

Jason and I were in a large field of peanuts between Tchula and Greenwood. An occasional plant . . . → Read More: Checking peanuts? Take your shovel! Unlikely southern blight* expression found in south Delta.

Surge Valve Issues and Gleanings.

This past week we encountered the following situation. A Grower irrigated a silt loam field utilizing a surge valve. When he checked his moisture probes neither the 6” nor the 12” Watermark™ sensor had moved. What’s going on? After careful evaluation we realized that the grower had prematurely terminated the irrigation cycle.

A few weeks ago we . . . → Read More: Surge Valve Issues and Gleanings.

Delta Research and Extension Center’s Agronomic Crops Field Day, June 17, 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. . . . → Read More: Delta Research and Extension Center’s Agronomic Crops Field Day, June 17, 2014

Peanut Emergence and Seed Diseases

At planting time there are never enough hours in the day, or enough days between the last rain and the next rain. Especially when the weather has pushed the last possible planting date for the crop into “next week’. So sometimes we try to get seeds into the ground even when conditions are not right. . . . → Read More: Peanut Emergence and Seed Diseases

Fungicides Labeled for Use On Peanuts in Mississippi, 2014

This post links to lists of fungicides labeled for use on Mississippi grown peanuts as of February, 2014. Each document sorts the same information different ways. . . . → Read More: Fungicides Labeled for Use On Peanuts in Mississippi, 2014

Two Upcoming Peanut Field Days

Two upcoming peanut field days offer the latest research recommendations and a chance to see some research/demonstration plots. The first field day will be held in south Mississippi, at Lucedale, the other in north Mississippi, at Clarksdale.

Lucedale

The Lucedale field day will be held on Thursday, August 29. Registration starts at 8:30 am at the George County . . . → Read More: Two Upcoming Peanut Field Days

Early Leaf Spot of Peanut found in the Greater Columbus Area

This last week I found early leaf spot in the Greater Columbus, Mississippi area. For information and images on how to identify early leaf spot, please see: http://www.mississippi-crops.com/2013/08/12/early-leaf-spot-of-peanut/ and http://www.mississippi-crops.com/2012/09/05/early-leaf-spot-found-in-the-greater-aberdeen-area/

Early and late leaf spot are major defoliators of peanuts and can be responsible for significant yield losses. In fact, these two diseases are the . . . → Read More: Early Leaf Spot of Peanut found in the Greater Columbus Area

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 spray schedule in established peanut growing areas (see Figure 1).
Lesion appearance:

Usually infects upper side of leaf.
Often surrounded by a chlorotic ring with a dark chocolate brown center.
Conidiophores are . . . → Read More: Early Leaf Spot of Peanut