Corn Disease Update: July 4, 2015, Southern Rust Observed in Five Counties (UPDATED @ noon)

Comparison between common rust (left) and southern rust (right). The coloration of the sporulation is a helpful diagnostic feature.

Corn diseases have started to be more commonly observed throughout the MS corn production area. Given the time of year in both calendar date and crop stages (post-tassel) several corn diseases are being observed more often. Northern corn leaf blight, southern corn leaf blight, and Diplodia ear rot have all been observed over the last two weeks. Southern corn rust made an appearance earlier than normal; however, the disease is considered to be at extremely low levels at this time even though five counties (Adams, Claiborne, Coahoma, Forrest, Stone) have been observed to contain infected corn plants. . . . → Read More: Corn Disease Update: July 4, 2015, Southern Rust Observed in Five Counties (UPDATED @ noon)

Row Crop Technology Showcase Pre-Registration

Pre-registration is now open for the upcoming Row Crop Technology Showcase events hosted by Mississippi State University. These events will be held at the following locations:

Dundee – Douglas and Chris Hood’s farm – July 7
Brooksville – MSU Black Belt Branch Experiment Station – July 15
Starkville – R.R. Foil Plant Science Research Center (North Farm) – July 16

Additional . . . → Read More: Row Crop Technology Showcase Pre-Registration

Mississippi State University Turn Row Field Day: Clarksdale, MS July 9, 2015

An agronomic crops field day will be held at Cliff Heaton farms, just east of the intersection of Highway 61 and Highway 6. The field day will be held in the cotton field on the south side of the road. MSU Extension Specialists will be present to discuss topics in corn, cotton, grain sorghum, peanut, rice and soybean. . . . → Read More: Mississippi State University Turn Row Field Day: Clarksdale, MS July 9, 2015

Be Aware of Wheat Seed Laws

WheatSeed2

As wheat harvest is being completed and we begin making marketing and future cropping plans it is important to understand seed laws pertaining to wheat. This article explains the ramifications of PVP and Patent protection pertaining to wheat seed. . . . → Read More: Be Aware of Wheat Seed Laws

Identifying Corn Reproductive Growth Stages and Management Implications

Silk Stage

Corn reproductive stages generally comprise about 60 days for corn hybrids grown in Mississippi at normal planting dates. Identification of these stages is critical for making prudent management decisions and anticipating crop response to practices and environmental conditions. . . . → Read More: Identifying Corn Reproductive Growth Stages and Management Implications

How much Nitrogen have I Lost from Saturated Soils?

Ponded Water

Abundant rainfall has soaked corn fields for extended time during April and late May, exposing nitrogen fertilizer to potential loss. This article gives guidelines for estimating potential N loss. . . . → Read More: How much Nitrogen have I Lost from Saturated Soils?

Tire Traffic Soil Compaction Effects on Corn

Tire Traffic Compaction

As a lot of our corn approaches tassel, issues associated with tire traffic soil compaction are becoming more evident. This article discusses the consequences. . . . → Read More: Tire Traffic Soil Compaction Effects on Corn

When Should I Start Irrigating My Corn?

Furrow Irrigation

The recent stretch of dry weather has prompted much conversation about the proper time to initiate irrigation for corn. This scenario usually generates a lot more anxiety than necessary because early season wilting is certainly not something we are very accustomed to. . . . → Read More: When Should I Start Irrigating My Corn?

Video – How to Identify Corn Vegetative Growth Stages

V6 growth stage corn is beginning rapid growth and leaves little margin for error for postemergence herbicide application.

This is a video showing the methods used to determine the vegetative growth stages of corn or sorghum in the field. Further information can be found in the accompanying Mississipp Crop Situation blog article. . . . → Read More: Video – How to Identify Corn Vegetative Growth Stages

How to Determine Growth Stages of Young Corn or Sorghum

V4 Growth Stage

Vegetative growth stages of corn or sorghum are determined by counting the number of fully emerged leaves with leaf collars present. This methodology can be used to anticipate growth and determine appropriate timing of many management decisions, including herbicide application, sidedress fertilizer, etc…. . . . → Read More: How to Determine Growth Stages of Young Corn or Sorghum