2021 Delta Ag Expo
The 2021 Delta Ag Expo will be held on February 17th, beginning at 8:30 am. Due to ongoing renovations to the Ag Expo building in Cleveland, this year’s event will be held at the Capps Auditorium at the Delta Research
Back to homepage
Disease
2020: Response of Cotton Varieties to Inoculation with Xanthomonas citri pv. malvacearum, the Causal Organism of Bacterial Blight
Response of the cotton varieties contained within the 2020 Official Variety Trial to bacterial blight following evaluations conducted on inoculated plots from Stoneville, MS are included in this blog post.
UPDATE: 2020 Soybean Variety Demonstration Program Summary
When previously posted, two locations from this year’s program had yet to be harvested. Since that time, harvest has been completed and the link below has been updated to reflect the addition of these data. As a reminder, the annual
2020 Soybean Stem Canker Inoculated Variety Trial Evaluations
The cultivars contained in the Mississippi State University Official Variety Trial (OVT), as well as several additional cultivars, were field-evaluated for their susceptibility/resistance to stem canker. Trials were conducted in Stoneville with toothpick-inoculated plants during the 2020 season. Tables contain the average of the field observations (on a 0-9 scale) as well as an assessment of resistance to stem canker (R, MR, MS, S) based on the evaluations conducted.
2020 MSU Corn Hybrid Trial Disease Evaluations – Non-Irrigated Locations
Non-irrigated locations containing the MSU official corn hybrid trials (OHT) were evaluated for foliar diseases during the 2020 season. Curvularia leaf spot and southern corn leaf blight were the two most commonly observed diseases. Little if any northern corn leaf blight (NCLB) was observed; however, where observed the evaluations were captured and are contained in the associated tables from each location. In addition, and when present, lodging was evaluated on a percent scale to capture any meaningful differences between hybrids. Presently, the evaluations from the non-irrigated locations (n=6) are included in the current post.
2020 MSU Corn Hybrid Trial Disease Evaluations – Irrigated Locations
Locations containing the MSU official corn hybrid trials (OHT) were evaluated for foliar diseases during the 2020 season. Curvularia leaf spot and southern corn leaf blight were the two most commonly observed diseases. Little if any northern corn leaf blight (NCLB) was observed; however, where observed the evaluations were captured and are contained in the associated tables from each location. In addition, and when present, lodging was evaluated on a percent scale to capture any meaningful differences between hybrids. Presently, the evaluations from the irrigated locations (n=4) are included in the current post.
Mississippi Soybean Rust Foliar Disease Update: September 5, 2020
Soybean rust has been observed to be much more widespread throughout the MS soybean production area this year. Normally, soybean rust is a late-season disease that goes unnoticed and ends up being observed at growth stages when the disease does not likely reduce yield (R6.5+). Soybean rust has been observed for the last three weeks across MS in soybean fields that range from R5.5 to R7. In some specific parts of the state management options have already been suggested due to the rust pressure in adjacent fields.
Identifying Late Season Soybean Growth Stages
As we move closer to maturity, there are many decisions to be made on termination timing of various management practices. At this time of the season, we can use late season soybean growth stages as a guide to decide when
Soybean Diseases Issues in the Late Season (Podcast)
Tom and Trent sit down with Bobby and Jason to Discuss where we are at with Late season soybean diseases and how to manage them
Mississippi Crop Situation Podcast – Corn Episodes
The corn agronomy guys are also recording Mississippi Crop Situation Podcasts. We are using this format to share our latest recommendations and issues we are finding in the Corn Verification Program and grower fields throughout the state.
Corn Disease Update: July 12, 2020
The presence of foliar diseases in the MS corn production system has certainly increased over the past several weeks. In general, the presence of disease increases as the corn crop ages. Questions regarding common and southern rust, Curvularia leaf spot, Diplodia leaf streak, and Physoderma brown spot have been posed over the past several weeks. Information regarding the aforementioned diseases is contained in the current blog post.
Corn Reproductive Stages and Their Management Implications
Corn progresses through six stages as ears develop through reproductive growth stages. Identification of these stages can be helpful for timing development, making prudent management decisions and anticipating crop response to practices and environmental conditions.
2019 Soybean OVT Foliar Disease Evaluations: Maturity Group V
The MSU OVT soybean locations were evaluated for disease during the 2019 season. Multiple diseases were evaluated at multiple locations and are provided in this post. Cercospora blight, frogeye leaf spot (when present), Septoria brown spot, southern blight, and target spot were the most commonly encountered diseases during the season.
2019 Soybean OVT Foliar Disease Evaluations: Maturity Group IV
The MSU OVT soybean locations were evaluated for disease during the 2019 season. Multiple diseases were evaluated at multiple locations and are provided in this post. Cercospora blight, frogeye leaf spot (when present), Septoria brown spot, southern blight, and target spot were the most commonly encountered diseases during the season.
County Meeting Schedule – February 2020
Mississippi State University Extension will be hosting several more county row crop meetings during February of 2020. Each meeting will cover issues specific to the region including management topics on agronomics, insects, weeds, diseases, and economics. A meal will be
Upcoming County Meetings – January 22-23, 2020
Mississippi State University Extension will be hosting several county row crop meetings in January and February of 2020. Each meeting will cover issues specific to the region including management topics on agronomics, insects, weeds, diseases, and economics. A meal will
2019 Soybean Stem Canker Inoculated Variety Trial Evaluations
The cultivars contained in the Mississippi State University Official Variety Trial (OVT), as well as a few additional cultivars, were field-evaluated for their susceptibility/resistance to stem canker. Trials were conducted in Stoneville with toothpick-inoculated plants during the 2019 season. Tables contain the average of the field observations (on a 0-9 scale) as well as an assessment of resistance to stem canker (R, MR, MS, S) based on the evaluations conducted.
2019: Response of Cotton Varieties to Inoculation with Xanthomonas citri pv. malvacearum, the Causal Organism of Bacterial Blight
Response of the cotton varieties contained within the 2019 Official Variety Trial to bacterial blight following evaluations conducted on inoculated plots are included in this blog post.
2019 MSU Corn Hybrid Trial Disease Evaluations Irrigated Locations
Locations containing the MSU official corn hybrid trials (OHT) were evaluated for foliar diseases during the 2019 season. Curvularia leaf spot and northern corn leaf blight (NCLB) were the two most commonly observed diseases. Presently, the evaluations from the irrigated locations (n=4) are included in the current post.
2019 MSU Corn Hybrid Trial Disease Evaluations NON-irrigated Locations
Locations containing the MSU official corn hybrid trials (OHT) were evaluated for foliar diseases during the 2019 season. Curvularia leaf spot and northern corn leaf blight (NCLB) were the two most commonly observed diseases. Presently, the evaluations from the non-irrigated locations (n=4) are included in the current post. The irrigated locations (n=4) will be posted at a later date.
2019 Soybean Variety Demonstration Program Summary
The annual MSU Extension Soybean Variety Demonstration Program is conducted using a set of varieties with proven performance. These varieties are grown in a production setting on various soils and management systems around the state. The sets for 2019 represented
Free Mississippi Soybean Nematode Testing Through August 2020
The Plant Diagnostic Lab is offering free nematode testing for Mississippi soybean fields through August 30, 2020. The free testing, offered as a portion of a check-off funded project by the United Soybean Board, has been expanded to include all plant parasitic nematodes of soybean, not just soybean cyst nematode (SCN).
Late Season, Early Leaf Spot Movement
Early leaf spot (https://www.mississippi-crops.com/2013/08/12/early-leaf-spot-of-peanut/) can seriously defoliate peanuts, leading to yield losses and perhaps inversion problems that inhibit pod drying. Leaf spots generally require some hours of free water (dew, guttation, irrigation) on the leaf for the fungal
Soybean Disease Update: September 7, 2019
Even though we are late in the season, some of the disease situations observed across MS continue to change.
Cotton Leafroll Dwarf Virus: First Report in MS in 2019, Identification and Management Considerations
A lot of information regarding a new cotton virus, cotton leafroll dwarf virus (CLRDV), has been swirling around the internet since last fall. A low number of CLRDV-positive samples were detected from Coahoma County, MS last week. The current blog post contains information regarding the virus.
Ag News
- Research in Ag-Tech Top-Of-Mind in Farm Bill Hearing December 9, 2022
- USDA to Address ‘Soybeans of Other Colors’ Issue, Grading Standards November 12, 2022
- How to Create a Short-Term Operating Plan for Your Farm November 11, 2022
- ‘Red Wave’ of Voters Did Not Happen: Why Were Poll Predictions So Far Off the Mark? November 10, 2022
- Agronomic Phenomenon in Corn Strikes Outer Rows of Fields, Strips Yield November 10, 2022
- LSU plans certificate program to strengthen national food supply chains November 9, 2022
- 2023 MSU Short List of Suggested Corn Hybrids November 9, 2022
- Everything’s Bigger in Brazil: The Country Is Poised To Set A Grain Production Record November 8, 2022
- USA Rice Releases PLC Payment Calculator for 2021 Crop November 8, 2022
- U.S. Farm Sector Financial Performance November 8, 2022
