Spider Mite Update: Podcast
spider mite update6_29_12 Click link to view Spider Mite Article by Scott Stewart, University of Tennessee: http://news.utcrops.com/2012/06/spider-mites-on-the-increase/
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1. By Crop
Fall Armyworms in Soybeans and Peanuts
We have gotten multiple calls over the last week about fall armyworms in soybeans and peanuts. In every case, it has been a situation where people got behind on grass control when we were getting a lot of rain a couple weeks ago. In those situations, they have sprayed the grass during the last two weeks with products such as Select or Roundup that are relatively slow acting. A lot of the grass is infested with grass-strain fall armyworm and big worms start moving over into the crop about a week to ten days after the application when the grass starts to die.
Cotton Irrigation and Plant Growth Regulator Applications
Up until this week, much of the crop throughout the state appeared to be in good shape. However, the onset of high heat combined with the lack of rainfall has made this a pivotal week for cotton in many areas
Corn Disease Update for June 22, 2012: Southern Rust Detected in Localized Areas
Numerous diseases and disease-like issues are being detected throughout the corn crop in this stage of the season. Nutrient burn, sun scald, northern corn leaf blight, gray leaf spot, and southern corn leaf rust can all be observed throughout localized areas of the Delta at this stage in the season.
Tarnished Plant Bug Update
This week has been the turning point on plant bugs and appears to be the week for the mass movement of migrating adults into cotton fields in many areas. Compared to previous years we are 10-14 days behind schedule. There have been quite a few sprays going out for tarnished plant bug this year but as a whole numbers have actually not been as high to date as many of us would have thought with the warm winter.
Late Season Corn Irrigation and Termination
This season’s corn crop, particularly that planted in early March, is extraordinarily early. However, it will still need additional irrigation or rainfall to finish the crop out. This article discusses crop progress and methods to schedule and terminate irrigation water for corn.
Crop Update and Four Bract Squares
In general, the cotton crop in Mississippi appears to be in good shape. Some areas are beginning to need some rainfall; however, a few fields just got water off low areas a few days ago. Blooms are becoming more prevalent
Tomato Spotted Wilt, Quick Identification
Tomato spotted wilt virus (TSWV) has historically been a devastating disease of peanuts. Given the high thrips population this spring and large population of flowering winter weeds known to be TSWV hosts, I was expecting a TSWV year. I was
Appropriate Timing for Optimizing Corn Yield Response
Interest in mid-season application of various inputs has certainly increased as we try to improve corn productivity through better management. This article discusses how corn physiology plays a primary role in determining corn yield response and appropriate management timing.
Soybean Crop Update and Management Considerations
We are all thankful for the recent rains that were received throughout the majority of the state. These rains were certainly welcomed, especially in those areas that have remained dry for the last several weeks. Many places received adequate rainfall,
Table of Peanut Fungicides Labeled in Mississippi
I have been asked for my “cheat sheets” of peanut fungicides labeled for use in Mississippi. Here are two tables, one alphabetized by active ingredient (primary a.i. if more than one a.i.) and the second table alphabetized by Trade Name.
Soybeans: Should I Add an Insecticide With the Fungicide?
I have been getting quite a few calls about whether or not to mix an insecticide with the fungicide at the R3 growth stage of soybeans this year. The reason I am getting the calls is for the most part
Plant Growth Regulator Use in Cotton
Generally speaking, the 2012 crop is ahead of where we typically are at this time of year. Much of this can be attributed to planting earlier than usual due to warm weather conditions earlier in the spring. Blooms have already
Preventive Soybean Fungicide Applications: Products, Rate Selection, Timing
Over the past several weeks several phone calls have inquired about the specifics on timing of fungicide application in soybean. Over the past decade, the majority of the fungicide trials conducted in MS have suggested that an R3/R4 fungicide applied in the absence of disease provides not only excellent yield-loss prevention but in some cases an economic return.
Rice Stink Bug Update
As some of the rice in Mississippi is starting to approach head emergence within the next few weeks, I wanted to give a brief update on rice stink bug populations that we are seeing across the Delta.
Delta Research and Extension Center’s Corn/Soybean (July 19) and Rice (July 31) Agronomic Crop Field Days
The DREC will be holding two separate field days, one for corn and soybean on July 19 and one for rice on July 31.
June Supply and Demand Report Recap
The United States Department of Agriculture’s World Ag Outlook Board released their monthly supply and demand estimates report earlier this morning. The report was the second round of forecast for the current summer (new) crops, which is the 2012/13 marketing
North Mississippi Research and Extension Center Agronomic Row Crops Field Day
The biennial North Mississippi Research and Extension Center Agronomic Row Crops Field Day will be held at the Lee County Agri-Center, Magnolia Conference Center, Highway 145 South of Verona, on Thursday, August 9, 2012, from 8:00 a.m. to 1:30 p.m.
6/6/2012 Ditchbank Survey
Plant bug sprays are going out this week but overall numbers have not been as high as expected to date. This can change rapidly as plant bugs begin to move into fields from wild host plants. Click to Enlarge
Insect Trap Counts, June 6, 2012
Bollworm and budworm pheromone trap catches are up some from last week, but bollworm catches are still far below typical catches for this time of year. Some sampling of corn and sweet corn has confirmed the low pressure. Once corn
Corn Disease Update: June 7, 2012
Over the past few days reports of northern corn leaf blight and gray leaf spot have increased in the MS corn crop. However, common rust is still the only rust that has been observed in MS. Keep in mind that in some cases common rust, on the lowest leaves in the corn canopy, can take on the appearance of southern rust.
Peanut Disease Update: week of May 27 – June 1.
Before getting to the state disease summary, a quick note on two diseases common at this time of year, Pepper Spot/Leaf Scorch and funky leaf spot (FLS). Funky Leaf Spot is important because the early symptoms can be confused with
Corn Fields Having Sustained Hail Injury May not Benefit from a Foliar Fungicide
Over the past several weeks we’ve encountered tremendous hail damage in corn fields. Leaf shredding is one of the more common symptoms associated with hail injury and the greatest source of yield loss as a result of hail injury (see:
