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.
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 Centerâ€™s Agronomic Crops Field Day, June 17, 2014
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 â€œnext week’. So sometimes we try to get seeds into the ground even when conditions are not right. . . . → Read More: Peanut Emergence and Seed Diseases
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 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.
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
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
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).
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