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
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.
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.
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.
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.
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
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).
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
Even though we are late in the season, some of the disease situations observed across MS continue to change.
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.
Since June, and most recently over the past few weeks, the corn disease questions have continued to include diseases from the lower canopy, in addition to Curvularia leaf spot. Southern rust was first detected in the MS corn crop on July 5. Since that time a limited number of counties have also observed the disease. However, at present, the amount of southern rust observed has been rather low.
We welcome you to attend the Row Crop Update at the 2019 Mississippi Agricultural Industry Council Annual Convention. This event is hosted at Perdido Beach Resort in Orange Beach, Alabama on Wednesday, July 24 starting at 8:00am.
The 2019 MSU-DREC Rice Producer Field Day will be held on August 8, at the Delta Research and Extension Center at 3:30 p.m. The program will begin at the Capps center with a brief welcome prior to departing for the field
Plant pathogens require a specific set of factors to occur within a given period of time for disease to occur. Oftentimes the disease triangle is the main image behind plant pathology, when a susceptible host, plant pathogenic organism and the environment work together to cause a plant disease. Even though the environment is most often considered the main factor behind the occurrence of plant diseases, the host and the response of the host can also be factored into the occurrence of plant diseases. Defining the different responses of the host (e.g., susceptible versus resistant) is important to understand the level of disease that can occur on a given host.
The MSU OVT soybean locations were evaluated for disease during the 2018 season. Multiple diseases were evaluated at multiple locations and are provided in this post. Cercospora blight, Septoria brown spot, southern blight, and target spot were the most commonly encountered diseases during the season.
Most of the corn disease questions over the past week to 10 days have had to do with diseases in the lower canopy. Common rust has been one of the most commonly observed diseases and continues to be observed once plants reach reproductive growth stages.
The projected wind maps and storm track maps for Invest 91L have started to stabilize. See http://trackthetropics.com/invest91/ It is possible that this storm has picked up fungal spores from peanuts grown around the base of the Yucatan peninsula. If so,
As the Mississippi corn crop approaches tassel stage, weather has fluctuated from wet to dry conditions during recent weeks. Thus, this may affect your strategy regarding application of various management inputs, including nitrogen fertilizer or other products. This article will discuss factors that will improve your response.
Mississippi State University will be hosting 2 scout schools this year. We have transitioned over the years to make these trainings much more diverse than insect pest alone. This year we will be including insects, disease, fertility, and herbicide symptomology.
Proper calibration of agricultural pesticide application equipment can mean the difference in control or failure of a pesticide against the targeted pest and potentially thousands of dollars of savings to the grower. Many growers are now using rate controllers; however,
The 2018 Mississippi State University (MSU) Row Crop Short Course, held in December, showcased presentations by growers, industry experts, and row crop specialists on topics such as nematode management, weed control, off-target movement of herbicides, and the 2019 economic outlook.
The MSU OVT soybean locations were evaluated for disease during the 2018 season. Multiple diseases were evaluated at multiple locations and are provided in this post. Cercospora blight, Septoria brown spot and target spot were the three most commonly encountered diseases during the season.
Evaluations of the entries contained in the MSU Official Variety Trial were screened for their response to a fungicide that produces phytotoxicity. Even though differences exist within the commercially available fungicides regarding the amount of phytotoxicity observed over the past few season, the associated evaluations should provide guidance as to the specific response of commercial variety offerings. As has been stated in the past, no yield losses have been observed to occur as a result of the phytotoxicity associated with the commercially labeled fungicides for application to soybean.
Observations of target spot were made in the MSU OVT location conducted in Lucedale and Stoneville, MS during 2018. Included in this blog post are the observations of disease on leaves as well as the percent defoliation from all 67 varieties included in the 2018 MSU OVT.
Mississippi State University Extension will be hosting several county row crop meetings from January through March of 2019. Each meeting will cover issues specific to the region including management topics on agronomics, insects, weeds, diseases, and economics. A meal will
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