Since 2011 we have seen a decline in efficacy of thiamethoxam treated cotton seed against tobacco thrips. This has led to the increase of foliar applications in mid-south cotton acres. Recently Syngenta has confirmed that populations in the mid-south region are in fact resistant to the active ingredient thiamethoxam. This is specific to tobacco thrips and . . . → Read More: Tobacco Thrips in Mid-South Resistant to Thiamethoxam
The 2013 Row Crop Short Course will be held at the Bost Extension Center on the campus of Mississippi State University from December 2 – 4, 2013. The 2013 Row Crop Short Course will begin with an irrigation symposium hosted by Dr. Jason Krutz along with several other crop specialists and other irrigation experts from Mississippi . . . → Read More: 2013 Row Crop Short Course
The 3rd annual joint MEA/MAPPAN/MWSS annual meeting will be held next week at the Bost Extension Building in Starkville, MS next week. The dates of the meeting are Monday and Tuesday October 21-22. We have a very informative and exciting program planned for the meeting. The meeting will kick off Monday afternoon with a Row Crop . . . → Read More: Joint MEA/MAPPAN/MWSS Annual Meeting and Roundtable Discussion
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
With all of the rainfall that we have had around most of the state, there have been a lot of questions about the impact on seed treatments. In general, most of the seed treatments that are being used in all crops are water soluble. Typical levels of rainfall should not have a negative impact on the efficacy of seed treatments, but excessive rainfall may. . . . → Read More: How will rainfall impact seed treatments in soybeans, rice, cotton, and other crops?
According to the National Agricultural Statistics Service in Mississippi, there were 4.5 days suitable for fieldwork for the week ending Sunday, May 19, 2013. Favorable conditions allowed for more field work to be completed. Operators were able to plant more corn, soybeans, and cotton. Soil moisture was rated 1 percent very short, 1 percent short, 52 percent adequate, and 46 percent surplus. . . . → Read More: Crop Progress & Condition Report 5/19/2013
I have been asked several times over the last week about the need for thrips control now that we have more optimal planting conditions. This is a good question and I will attempt to provide some valuable insight about thrips control in both cotton and peanuts. . . . → Read More: Thrips in Cotton and Peanuts
Historically, we have chased the planter with the sprayer to apply residual herbicides. This presents several potential problems… . . . → Read More: Chase the Sprayer with the Planter