Southwestern Corn Borer Traps, August 8, 2020
Although most corn across the state is beyond the susceptible stage, southwestern corn borer traps were very high in some counties with multiple traps exceeding 100 moths per trap.
Although most corn across the state is beyond the susceptible stage, southwestern corn borer traps were very high in some counties with multiple traps exceeding 100 moths per trap.
Southwestern corn borer trap counts increased again this week in several counties. Traps in Leflore, Carroll, and Tate counties exceeded the current threshold of 100 per trap. As a reminder, corn is considered safe from yield losses from southwestern corn
Overall, southwestern corn borer trap numbers are beginning to decline. Only one location in Leflore county exceeded the threshold of 100 per trap this week.
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.
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.
Trap counts for southwestern corn borer are highly variable this week. We did have two locations in Tate and Leflore Counties that exceeded the threshold this week. As a reminder, thresholds for southwestern corn borer suggest spraying non-Bt corn 7
Corn productivity is dependent upon favorable weather and many management practices and inputs you provide, many of which are implemented during planting. Of course, many times we face substantial weather-related challenges that limit productivity. This article addresses those challenges and presents strategies to enhance profitability or minimize associated risk.
Mississippi State goes to great lengths to evaluate, assess and analyze corn hybrid performance, so you have good information to make decisions which improve the profitability of your farm. These Hybrid Demonstration trials are grown in numerous on-farm locations throughout the state where you can better evaluate hybrid performance of our region’s most elite hybrids. Complete results, including yields and plant characteristics from this year’s trials are published here.
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.
This will be the last week that southwestern corn borer trap counts will be reported since most corn is past the susceptible stage.
Several traps exceeded thresholds for the week ending on July 5. As a reminder, our current thresholds are 50 southwestern corn borer moths within a weeks time for corn that has not yet tasseled. From tassel to dent, the threshold
Southwestern corn borer trap numbers are starting to increase in some areas of the state. Scouting should be intensified over the next couple of weeks. It is likely some fields will reach threshold numbers over the next 10 days to
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.
Brown stink bugs have been treated on a fair number of acres of corn in the Delta this year. With the loss of Methyl, there are not a lot of good choices to control this pest in corn. We are
Over the last couple days we have begin to receive a few calls about brown stink bugs in seedling corn in the Delta region of the state. Stink bugs attack corn by feeding through the side of the stem or
Assessing corn stands to make replant decisions involves numerous factors which will likely influence the outcome. This article discusses those factors, including new research results, which should help make these difficult decisions easier.
As rains delay planting progress across much of the state, you may be wondering when to abandon corn planting intentions, and proceed with other crops. This newsletter helps address that question by explaining how corn responds to late planting when grown in different production systems based upon research conducted by Mississippi State University.
Mother nature has certainly presented a very difficult scenario regarding the upcoming 2019 planting season. In this article, we will discuss those issues and our options to hopefully get our corn intentions planted and off to a successful start.
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