Cotton Insect Management
Presented by: Dr. Gus Lorenz, Professor-Extension Entomologist, University of Arkansas Division of Ag – Extension
Each year, the bollworm (Helicoverpa zea, Bodie), infests 100% of cotton planted in Arkansas. It remains a major pest of post-bloom cotton in the Mid-South despite widespread use of transgenic varieties. Dual gene Bt cotton does not always provide adequate protection from lepidopteran pests to maintain potential yield. In years when bollworm populations are high, foliar insecticides are commonly used to supplement control of cotton bollworm. In recent years we have seen a decline in control of bollworm with dual gene cotton. A recent analysis of data indicates that there has been an increase in damage to squares which might indicate tolerance is developing to dual gene technologies. Economic loss to the grower based on cost of treatment and reduction in yield due to this pest totals more than $1.7 million or $9.41 per acre, in 2020 that figure is much higher. We will discuss the impact and efficacy of foliar over sprays on conventional and dual-gene cottons, and the role of 3 gene cotton for growers in the Midsouth.
Management of Cotton Insects to Maximize Profit
Presented by: Dr. Whitney Crow Assistant Professor, Extension Entomologist, Mississippi State University
Guidelines on management of cotton insects to maximize profits in 2020. Focus will be on current issues facing cotton production and the best management practices to minimize input cost.
Cover Crops Reduce Early Season Weed Competition
Presented by: Dr. Tom Barber
Extension Weed Specialist, U of A Division of Agriculture
Cover crop acreage is increasing in Arkansas for several reasons including potential benefits in weed control. Palmer amaranth (pigweed) emergence has been significantly reduced when a cereal rye cover crop was implemented. However, successfully reducing pigweed emergence can be directly related to cover crop termination timing. The research data presented provides appropriate cover crop termination timings to significantly reduce Palmer amaranth emergence at planting and beyond.
Weed Control In Cover Crops: What Worked, What Didn’t; Cover Crop Termination Timing
Presented by: Wes Kirkpatrick
Arkansas Farmer: Cotton
Kirkpatrick will discuss weed control efforts he’s tried in cotton that was planted into a cereal rye cover crop. Some have worked and some have not, especially in relation to pigweed. He will examine how the timing of the termination of a cover crop affects weed growth during the growing season.
After receiving his Bachelor’s Degree in biology with a minor in fisheries and wildlife management from the University of Arkansas at Little Rock, and his Master’s Degree in agronomy with a focus on soil science from the University of Arkansas at Fayetteville, he became a county agent with the University of Arkansas Division of Agriculture in the early 2000s in Desha County, Arkansas. Desha County has over a quarter million acres in agricultural production, which primarily includes cotton, soybeans, corn, and rice. There he met many farmers and his future wife, Vonda, a fifth-generation Desha County row crop farmer. He’s been associated with that farm since his marriage in 2003 and became a full-time farmer in 2016, now just completing his sixth full time crop.
Cotton Yields –How High Can We Go?
Presented by: Dr. Fred Bourland
Professor, University of Arkansas
Average cotton yields in Arkansas have increased from a record low in 1930 (119 lb/a) to a record high in 2019 (1185 lb/a). Four progressively increasing yield plateaus have been experienced during this time span with each plateau having different causes and remedies. Can yields continue to increase above the latest and highest plateau? Yield potential of a cotton plant far exceeds our current yields, but we may now be approaching yield limits imposed by our environment.
Cotton Production Costs –Where Can We Save?
Presented by: Ray Benson
County Cooperative Extension Agent, Staff Chair, Mississippi County, AR, University of Arkansas
With a possible high yield plateau and stagnant cotton prices, increased profits can only be achieved by reducing production costs per unit of production. Profits might be improved by matching inputs to historical yield potential within fields (site-specific management). Prescription seeding rates, variety selection (within a field), fertilization, irrigation, and pest control could improve efficiency of inputs and enhance profits.
Identifying and managing disease of cotton in the Mid-southern United States
Presented by: Dr. Tom Allen
Associate Extension Research Professor, Plant Pathologist, Delta Research & Extension Center
Numerous diseases of cotton continue to remain important in the Mid-southern cotton production system. Seedling diseases, foliar diseases, as well as diseases caused by nematodes can all result in yield-losses depending on the year and given situation.
Insects, Weeds, And Diseases. What We Saw In 2020
Presented by: Tucker Miller, III
Mississippi Consultant, Miller Entomological Services, Inc.
Miller will discuss the BG 3 varieties he tested the past year, including three Delta Pine varieties: 2012, 2020 and 2038; two Phytogen: 400 and 390; Nexgen 4936 and Stoneville 4990. He will give a description of how they performed. He also will provide some options to use in place of Dicamba in case farmers lose that treatment. That includes planting Phytogen’s Enlist cotton and using 2-4,d or go back to the old way of planting cotton by using cultivation and Liberty. He also plans to discuss some diseases he’s had to combat this year including bacterial blight and a little target spot.
Though he’s been consulting for the past 48 years, he first began checking cotton at age 15, making it 50 years he’s been in the field. Today, he consults on 25,000 acres of cotton, 5,000 acres each of soybeans and corn, as well as 1,000 acres each of peanuts and vegetables. He grew up on a farm where cotton, soybeans and rice were raised; on his own 2,000 acres, he raises soybeans, wheat and corn, but also raises cotton some years.
Potential of UAS-Based Multispectral Imagery for In-Season Nitrogen Management in Cotton
Presented by: Dr. Simerjeet Virk
Assistant Professor & Precision Ag Specialist, University of Georgia
Latest availability and integration of high-resolution multispectral sensors on unmanned aerial systems have expanded the capabilities for time-sensitive and rapid data collection over large fields in the season. Cotton nitrogen management in the season can have a significant impact on the crop growth and subsequent lint yield. This study investigated the potential of multispectral imagery-collected using an unmanned aerial system-for estimating nitrogen status in cotton during the growing season, with a goal of developing correlations that can be used to detect and address in-season Nitrogen variability in cotton.
Lessons in Soil Health from On-Farm Demonstrations and Cotton Scouting
Presented by: Matt Fryer
Instructor – Soil Science, University of Arkansas Systems Division of Agriculture Cooperative Extension Service
Presented by: Craig Shelton
Certified Crop Advisor, Natural State Crop Consulting
Matt Fryer -The term soil health is vast and includes production practices like no-till and cover crops. On-farm demonstrations were implemented at 20 sites comparing cover crops and no-till to conventional production practices. Components of comparison include: bulk density, aggregate stability, soil nematode populations, in-season moisture sensor data, water infiltration rates, yield, and economics.
Craig Shelton -Many years of crop consulting experience has led Natural State Crop Consulting to advise toward no-till production practices and the use of cover crops. There are challenges and benefits, but the benefits are apparent by the reduction of inputs and overall profitability on a large scale.
Update on aphid vectors, virus spread and management of Cotton leafroll dwarf virus (CLRDV) in the U.S.
Presented by: Dr. Alana Jacobson
Associate Professor of Entomology, Auburn University
Cotton leafroll dwarf disease (CLRDD), caused by Cotton leafroll dwarf virus (CLRDV), is an emerging aphid-transmitted virus in the U.S. Symptoms of this new disease include crinkling, cupping, thickening of leaves, reddening of leaf veins and petioles, dwarfing of the plant, reduced boll set, swollen and brittle stems, accentuated verticality and decreased yields. Results of research conducted in 2019-2020 will be presented to highlight what has been learned about virus spread by aphids, and the effectiveness of management strategies on reducing virus incidence and yield loss associated with this virus.
Management of Cotton Aphid and Implications for CLRDV
Presented by: Phillip Roberts
Professor and Extension Entomologist – Cotton, University of Georgia
Cotton aphid infest a high percentage of cotton acreage in the Southeast and is a potential pest of cotton in the region. The recent detection of Cotton leafroll dwarf virus (CLRDV) which transmitted by cotton aphid necessitates further investigation into the biology and ecology of cotton aphid in cotton production systems. Additionally, field trials investigated the influence of cotton aphid management on CLRDV incidence.
Improving Cotton Sustainability: Pilot Program to Demonstrate Implementation and Benefits of the US Cotton Trust Protocol and Better Cotton Initiative (BCI) Better Cotton Program
Presented by: Dr. Bill Robertson
Professor, Cotton Extension Agronomist, University of Arkansas System Division of Agriculture, Newport Extension Center
Presented by: Dr. Jesse Daystar
Vice President & Chief Sustainability Officer, Cotton Incorporated
Presented by: Karen Wynne
US Program Coordinator, Better Cotton Initiative
A production field of cotton located at the Agricenter in Memphis, TN was used as a model for participation in both the US Cotton Trust Protocol and BCI Better Cotton Programs. Prior to the start of this study, cotton was produced using conventional tillage without the use of cover crops. In 2020, the field was split comparing practices to improve soil health including cover crops and greatly reduced tillage compared to the standard practices of conventional tillage using no cover crops. Improvements in sustainability metrics between the two systems will be discussed and compared to the US Cotton Industry goals for improvement. Representatives from both BCI and US Cotton Trust Protocol Programs will discuss their respective programs to meet the improved sustainability needs of our supply chain.
Cotton and Quail Precision Ag Partnership, How Habitat improves profitability and sustainability
Presented by: Chaz Holt
Precision Agriculture & Conservation Specialist, Quail Forever
Presented by: Nick McMichen
Alabama Farmer: Cotton
Chaz has been involved in both large-and small-scale agronomy and alternative cropping systems for 18 years. He achieved his B.S. in Agriculture Sciences from University of WY and M.S. in Land Resources and Environmental Sciences, AgroEcology from Montana State University. He is currently a Certified Crop Advisor through the American Society of Agronomy. His work experience off the farm has been working previously for Agrium , Simplot, and Montana State University’s Sustainable Foods and Bioenergy Systems program. My role as the Precision Agriculture and Conservation Specialist is to address cotton profitability relative to overall input costs and yields on marginal lands helping achieve Sustainability goals set forth by the Cotton Industry as a whole
Cover Crop Management in Southeast Cotton Production Systems
Presented by: Dr. Audrey Gamble
Assistant Professor & Extension Specialist, Auburn University
Presented by: Dr. Kip Balkcom
Research Agronomist, USDA-ARS National Soil Dynamics Laboratory
Presented by: Adam Chappell
Arkansas Farmer: Cotton
Adoption of cover crops has created more sustainable cotton production systems for many farmers in the Southeast. Some benefits of cover crops include improved soil moisture storage, reduction in herbicide inputs, and enhanced soil health. However, managing cover crops is not without challenges. In this session, speakers will address how management challenges were overcome to successfully incorporate cover crops into cotton production systems.
Benefits and challenges of cover crops in West Tennessee cotton
Presented by: Dr. Tyson B. Raper
Cotton Specialist, University of Tennessee
The integration of cover crops into Tennessee cotton production poses numerous benefits including increases in infiltration and water holding capacity, increases in the effective rooting zone, increases in weed and insect control, and reductions in erosion. Unfortunately, cover crops also pose unique challenges in cotton production, particularly within the Tennessee no-till system. During this presentation, Mr. Matt Griggs, a 5thgeneration row crop producer in Humboldt, TN, will highlight a few of the benefits he has captured on his farm and some of the practices he has adopted to maximize the likelihood of successful cover crop integration.
A systems Approach To Integrate High Biomass Cover Crops Into A Cotton Production System
Presented by: Matt Griggs
Tennessee Farmer: Cotton, Corn, Soybeans, Wheat, Cover Crops
Griggs will discuss a systems approach to integrate high biomass cover crops into his cotton production system. He will include strategies to successfully plant cotton into living cover, and will share data from his farm showing increased water infiltration, greater water holding capacity, increased nutrient concentration, and better weed control when integrating cover crops. He has been large scale cover cropping since 2014 and planting green since 2015.
This year Griggs is working approximately 2000acres. 500 acres corn, 630 acres cotton, 350acres full season soybeans, 500 acres wheat, and 500 acres of double crop soybeans.
He has been on the farm all his life but started working full time with his father, Bobby Griggs, upon graduation from college in 2002. He took over the farm full time in June 2005 when his father suddenly passed away after a short bout with illness. Matt was married to Kelly Griggs in 2006 and she came to work full time on the farm in 2010. They have three children: Paige is 23 years old, Nate,18, and Carter,12.
Griggs is a fifth generation farmer on the family farm which has been in the present location since 1882. At first, the Griggs family primary business was a cotton gin with some farming on the side. The farming operation grew when his father, Bobby, took over in the 1970’s when he graduated college while Matt’s grandfather, Wayne Griggs focused primarily on the gin. The gin was shut down after the 1995 crop. When Matt took over the farm, it consisted of900 acres. Matt more than doubled the size of the operation and turned their equipment into a fleet of modern, high tech equipment.
Matt attended the University of Tennessee at Martin in Martin, TN and received his bachelor’s degree in Plant and Soil Science in 2002.
There’s much historical information about the Griggs farm on its website, www.griggsfarmsllc.com.
The Griggs farm was featured last year on the 8-part docuseries, “The American Farm,” on The History Channel.