Mississippi Weed Science Roundtable
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2. By Subject
Bollworm Flight Later Than Normal But Now Starting
Usually in Mississippi the major bollworm flight coming off of corn usually ranges from June 25-July 7th on average. We started getting our first calls out of the south Delta this week. Many consultants are reporting scattered worms and eggs
Pheromone Trap Counts, July 19, 2013
Bollworm and tobacco budworm counts are lower in the Delta region this week compared to last week, while this week’s trap catches in northeastern MS are similar to last week. As can be seen in the table, catches of both species
Corn Disease Update and Late Fungicide Suggestions: July 19, 2013
Corn fungicide questions continue to be made even in situations where corn has reached dent. In general, making a fungicide application at dent or later corn growth stages only pays off if excessive disease pressure is observed prior to the fungicide application being made. Moreover, making a fungicide application to a foliar disease tolerant hybrid will likely not pay off since the genes present in the hybrid should be relied on for preventing yield loss as a result of foliar disease.
Soybean Disease Update and Frogeye Leaf Spot Fungicide Suggestions: July 17, 2013
Over the past two weeks increased reports of soybean diseases have been made from throughout the state. In addition, in southern MS, two more counties have been confirmed to be positive for soybean rust.
Cotton Layby Herbicides
Over the last couple of weeks numerous calls have come in regarding layby herbicide programs. There are several options for layby programs and many have their own favorite program that they have been successful with in the past. I will
Reminder: Mississippi State University/Monsanto Company Pigweed Field Day July 17
The Mississippi State University Extension Service in cooperation with Monsanto Company will host a pigweed field day near Robinsonville, MS on July 17, 2013. The field day location is just north of Tunica National Golf Course. A more detailed map
Mississippi Kudzu Bug Update: 7/12/2013
I have had numerous calls on kudzu bugs in the last couple weeks, mainly from the southwest part of the state. Kudzu bugs were found in 4 counties in 2012 in MS. In 2013 we have now confirmed 10 additional counties, in which 6 were found in soybeans. Since these initial finds in soybeans in Warren, Claiborne, Hinds, Yazoo, Stone, and Rankin Counties, it has become common for consultants to find 4-8 adults per 25 sweeps, in a few cases up to 10-15 in a couple of these areas.
Pheromone Trap Counts, July 12, 2013
Bollworm trap counts continue at levels similar to or slightly higher than the past several weeks. However tobacco budworm counts are sharply higher during the last two weeks in certain traps. This would suggest that any worm populations found in soybeans
Soybean Minute Radio Program
The Soybean Minute is a new radio program that can be heard on the Mississippi AgriNews Network. These reports, sponsored by the Mississippi Soybean Promotion Board and the United Soybean Board, offer the latest information on soybean production in Mississippi.
Soybean Rust Detected in a Soybean Sentinel Plot in Pearl River County
Once again this season soybean rust has been detected early in July. A single infected leaf was discovered in a soybean sentinel plot in Pearl River County on Tuesday, July 9, 2013. Historically this is 4 days earlier than last season (2012) and 2 days earlier than the earliest occurrence of rust in MS that occurred in 2007 on kudzu. At present, no additional management scenarios are necessary. We continue to scout to determine how widespread infection may be across south MS.
July Supply and Demand Report Recap
Soybeans The 2013/14 crop saw a few changes from last month’s report should be considered slightly bearish even as the market moved higher. Planted acres were revised up 0.6 million acres from last month to reflect the June Acreage report. Harvested acres
Managing Insect Pest in Mississippi Grain Sorghum
Mississippi traditionally does not plant a lot of grain sorghum compared to some states but the acres we plant (42K according to USDA, 2013) have to be scouted and managed for insect pest at least weekly. Grain sorghum in Mississippi can have significant insect issues in some years, especially on late plantings.
Southern Corn Rust Detected in MS Corn Crop
Extremely low levels of southern corn rust were observed in a single corn field in Humphreys County on Tuesday afternoon. Southern rust can be a devastating disease if left unchecked and when conducive conditions prevail (hot, humid environment).
Soybean Disease Update: July 5, 2013
Over the past two weeks soybean diseases have become apparent throughout the MS soybean production system. Isolated reports of frogeye leaf spot in reproductive maturity soybean fields as well as Fusarium wilt have been on the rise. Stay tuned to the Mississippi Crop Situation Blog for disease monitoring situations, including maps of counties where soybean rust and strobilurin-resistant frogeye have been made throughout the 2013 season.
Mississippi State University/Monsanto Company Pigweed Field Day – Corrected Start Time
The Mississippi State University Extension Service in cooperation with Monsanto Company will host a pigweed field day near Robinsonville, MS on July 17, 2013. The field day location is just north of Tunica National Golf Course. A more detailed map
How long will we need to Irrigate this Corn Crop?
This season’s corn crop is generally much later than normal and far behind the pace of last year’s crop. Thus, even the earliest fields will need additional irrigation or rainfall for several more weeks. This article discusses crop progress and methods to schedule and terminate irrigation water for corn.
Spider Mites Showing Up in Cotton
With the dry weather we have had recently, spider mites are starting to show up in a lot of cotton fields. Spider mites can be one of the most difficult pests to manage in cotton for several reasons.
Fungicide Time for Soybeans: The Insecticide Add on Dilemma
Many of the soybeans are now reaching R3-R4 growth stage so fungicides are commonly being applied. I have received quite a few calls questioning whether or not to add an insecticide in the tank since a trip was being made
Plant Bugs Moving Into Squaring Cotton
In the last 7 days we have received a number of calls about adult plant bugs beginning to move into squaring cotton. In many cases, fields that were treated last week have higher or equal numbers this week. As we
Audio: Southwestern Corn Borer Numbers High in Some Areas
Southwestern corn borer traps picking up in several areas in state.
Mississippi State University/Monsanto Company Pigweed Field Day – July 17, 2013
The Mississippi State University Extension Service in cooperation with Monsanto Company will host a pigweed field day near Robinsonville, MS on July 17, 2013. The field day location is just north of Tunica National Golf Course. A more detailed map
Pheromone Trap Counts, June 28, 2013
Bollworm catches were steady to slightly higher this week compared to the previous week. Tobacco budworm catches remained relatively low, with more in Northeastern MS than in the Delta. As has been true every week this year, bollworm catches were
Rice Stink Bug Update for the Week of June 28
I know it is a little early in the year, and very little if any rice is heading at this time. However, it is not too early to start thinking about rice stink bugs.
Mississippi Rice Progress – June 28, 2013
Favorable weather conditions continue to help this crop progress. Major problems outside of drift have been few for most of the spring; however, a few different issues have come up this week. Dr. Jeff Gore was called to help address a
