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Browse by Author: Lindsey Thiessen
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Bacterial Blight of Cotton

By: Lindsey Thiessen, Steve Koenning Cotton Disease Information

This factsheet describes bacterial blight of cotton, including identification and disease management.

Brown Spot of Tobacco

By: Marilú Salazar, Yara Rosado Rivera, Lindsey Thiessen Tobacco Disease Information

Brown spot is a disease of increasing importance in flue cured tobacco production.This disease is most severe on mature or otherwise injured tobacco.

Soybean Stem Canker

By: Lindsey Thiessen Soybean Disease Information

This soybean disease factsheet describes southern stem canker, a disease of soybeans in North Carolina.

North Carolina Soybean Production Guide

By: Katherine Drake Stowe, Carl Crozier, Gary Bullen, Jim Dunphy, Wesley Everman, David Hardy, Deanna Osmond, Nick Piggott, Sandeep Rana, Dominic Reisig, Gary Roberson, Brandon Schrage, Lindsey Thiessen, Derek Washburn

This publication provides information to growers about soybean production in North Carolina. It discusses economic trends and forecasts, cultural practices, variety selection, planting decisions, nutrient management, diseases and pests, and other production practices.

Granville Wilt of Tobacco

By: Raymond Garcia Rodriguez, Lindsey Thiessen Tobacco Disease Information

This factsheet shares the symptoms and control of Granville Wilt, a devastating disease of tobacco in North Carolina.

Frogeye Leaf Spot of Tobacco

By: Andrew Ernst, Lindsey Thiessen Tobacco Disease Information

Frogeye leaf spot disease on flue-cured tobacco is caused by the fungal pathogen, Cercospora nicotianae. This disease has historically been an issue for ripe tobacco, but has become more common over the last couple of years. The disease is found most commonly on lower, more mature leaves of the plant, but can also affect green tissues. Infections are not often severe enough to impact yield, but, under conducive environmental conditions, can cause severe damage to leaves.

Soybean Cyst Nematode

By: Ashley Joyce, Lindsey Thiessen Soybean Disease Information

Soybean cyst nematode limits yields in every major soybean production region worldwide. This disease note describes SCN in North Carolina and its management.

Gray Mold of Industrial Hemp

By: Shelby Ferrell, Lindsey Thiessen Industrial Hemp Disease Information

Gray mold of industrial hemp is common to most regions that produce this crop. It is favored by cool, wet conditions, and may cause significant losses.

2020 Cotton Information

By: Keith Edmisten, Guy Collins, Alan York, David Hardy, Dominic Reisig, Gary Bullen, Lindsey Thiessen, Rachel Vann, Charlie Cahoon, Bill Foote, Derek Washburn

2020 Cotton Information is meant to help growers plan for the coming year and make management decisions based on the unique opportunities and challenges the year might bring.

Black Shank of Tobacco

By: Yara Rosado Rivera, Lindsey Thiessen Tobacco Disease Information

Black shank is an economically important disease of tobacco that threatens production in North Carolina. This factsheet provides information about the causal organism (Phytophthora nicotianae) and its management.

Aerial Web Blight

By: Lindsey Thiessen Soybean Disease Information

This soybean disease factsheet covers aerial web blight, a generally minor disease of soybean in North Carolina.

Pythium Root and Crown Rot of Industrial Hemp

By: Ashley Troth, Lindsey Thiessen Industrial Hemp Disease Information

This factsheet discusses pythium root and crown rot in industrial hemp production.

Cotton Seedling Diseases

By: Ashley Joyce, Lindsey Thiessen Cotton Disease Information

Seedling diseases are a major disease concern for North Carolina cotton production. Numerous fungi are capable of causing seedling disease, and potential damages are heavily influenced by environmental conditions.

Corn Rusts: Common and Southern Rust

By: Lindsey Thiessen, Yara Rosado Rivera, Jonathan Kinczyk Corn Disease Information

Common and southern corn rusts may affect corn in North Carolina. Management for each is specific to the rust, and proper identification is necessary to determine the appropriate tools to use.

Root Knot Nematode of Soybean

By: Ashley Joyce, Lindsey Thiessen Soybean Disease Information

Root knot nematodes can cause significant damages to soybean fields in North Carolina. This factsheet describes the different species of root knot nematodes and their management in soybean production.

Disease and Nematode Management

By: Lindsey Thiessen

This publication, chapter 8 of the North Carolina Soybean Production Guide, discusses disease management in soybean production.

Root Knot Nematode of Tobacco

By: Lindsey Thiessen Tobacco Disease Information

Nematodes are an economically important pest for flue-cured tobacco production. Root knot nematode is particularly damaging due to the wide host range and number of species of root knot nematode found in North Carolina.

Chapter 6: Crop Production Management - Flue-Cured Tobacco

By: Matthew Vann, Hannah Burrack, Lindsey Thiessen, David Suchoff

This chapter of the North Carolina Organic Commodities Production Guide covers key management practices for organic flue-cured tobacco production.

Soybean Seedling Diseases

By: Ashley Joyce, Lindsey Thiessen Soybean Disease Information

Soybean seedling disease is caused by several different pathogens. While cultural management is the same across seedling diseases, chemical management may differ depending on prevalent pathogen and environmental conditions.

Asian Soybean Rust

By: Yara Rosado Rivera, Lindsey Thiessen Soybean Disease Information

Although uncommonly observed in North Carolina, soybean rust can be a yield limiting disease for soybeans. Proper identification is important to developing a management strategy.

How Have Foliar Treatments Affected Soybean Yields in North Carolina Trials?

By: Rachel Vann, Jim Dunphy, Lindsey Thiessen, Michael Buffaloe

This publication discusses the trends identified by research on the impacts of foliar fungicides and fertilizers on soybean yields in various environments across North Carolina.

Target Spot of Tobacco

By: Spencer Haroldson, Lindsey Thiessen Tobacco Disease Information

Target spot is a potentially devastating leaf spot disease in tobacco in North Carolina. This factsheet summarizes the signs and symptoms and offers treatment plans.

Managing Diseases

By: Lindsey Thiessen

This publication, chapter 8 of the 2020 Flue-Cured Tobacco Information handbook, covers disease management in tobacco production.

Soybean Sudden Death Syndrome

By: Sam Cude, Lindsey Thiessen Soybean Disease Information

Soybean Sudden Death Syndrome (SDS) first appeared in Arkansas in 1971 and has since spread to almost every soybean producing state. SDS rarely affects plants in North Carolina, but losses are seen when infections are concurrent with soybean cyst nematode infections or cool, wet environmental conditions. This factsheet describes SDS and its management in North Carolina.

Tobacco Greenhouse Production

By: Matthew Vann, Matt Inman, Tyler Whaley, Hannah Burrack, Lindsey Thiessen

This publication provides at-a-glance information for growing tobacco in greenhouses, including sanitation practices, source water analysis, fertilizer management, disease control, and insect control.

Tobacco Ringspot Virus of Soybean

By: Ashley Joyce, Lindsey Thiessen Soybean Disease Information

Tobacco ringspot virus is a disease of soybean in North Carolina. This factsheet offers information on the disease's symptoms and management.

Disease Management in Cotton

By: Lindsey Thiessen

This publication, chapter 9 of the 2020 Cotton Information handbook, covers disease management practices for cotton production.

Root Knot Nematode of Cotton

By: Lindsey Thiessen, Yara Rosado Rivera Cotton Disease Information

Cotton root knot nematodes are capable of causing significant losses to cotton production. In addition to direct damage, root knot nematode can allow for secondary pathogens to impact yields, as well. This publication describes root knot nematodes and their management in cotton.

Soybean Powdery Mildew

By: Lindsey Thiessen Soybean Disease Information

Powdery mildew is a common foliar disease caused by a fungus. The causal agent of soybean powdery mildew is host limited to beans. This factsheet describes soybean powdery mildew and its management in soybeans.

Soybean Vein Necrosis Virus

By: Sarah Cochran, Lindsey Thiessen Soybean Disease Information

This factsheet offers information on the signs, disease cycle, and management of soybean vein necrosis virus (SVNV), an occasional foliar problem in soybean in North Carolina.

Root Knot Nematode of Cotton

By: Lindsey Thiessen, Yara Rosado Rivera Cotton Disease Information

Root knot nematode is an economically important pathogen for cotton production in North Carolina. Accurate identification is useful for selecting the proper management method.

Cercospora Leaf Blight of Soybean

By: Sarah Cochran, Lindsey Thiessen Soybean Disease Information

Cercospora blight is a common foliar disease of soybeans in North Carolina. Early symptoms may mimic several other common soybean problems, and accurate diagnosis is important for selecting management practices.

Phytopthora Root and Stem Rot of Soybean

By: Yara Rosado Rivera, Lindsey Thiessen Soybean Disease Information

Phytophthora root and stem rot is a common pathogen in North Carolina due to our frequent wet weather. This factsheet describes the symptoms and management of the disease in soybean production.

Red Crown Rot of Soybean

By: Ashley Joyce, Lindsey Thiessen Soybean Disease Information

This factsheet covers the signs, symptoms, and management of red crown rot, a problem in soybean production in North Carolina.

Frogeye Leaf Spot of Soybean

By: Abdullah Nahiyan, Lindsey Thiessen Soybean Disease Information

Frogeye leaf spot (FLS) of soybean is a common foliar disease in North Carolina with losses reported annually. This soybean diseases factsheet offers information on the signs, symptoms, and management of FLS.

Reniform Nematode of Soybean

By: Yara Rosado Rivera, Lindsey Thiessen Soybean Disease Information

The reniform nematode is not a common nematode pressure for soybean growers in North Carolina, but is limited to several southern counties of the state. This factsheet will help growers identify and management the nematodes in soybean production in North Carolina.

Lance Nematode of Soybean

By: Yara Rosado Rivera, Lindsey Thiessen Soybean Disease Information

Lance nematode is not a common problem of soybeans, but can cause local damages in fields where it is found. This factsheet covers the symptoms and management of lance nematodes in North Carolina.

Nonfoliar Yield Enhancement Products in North Carolina Soybeans

By: Rachel Vann, Jim Dunphy, Lindsey Thiessen, Michael Buffaloe

This publication discusses trends identified in how nonfoliar yield enhancement products affected soybean yield over the past five years across 15 locations in North Carolina.

Alternative Product Demonstration and Research Guidelines for Extension Agents

By: Deanna Osmond, Luke Gatiboni, Robert Richardson, Hannah Burrack, Lindsey Thiessen, Joe Neal, Katie Jennings

This publication provides guidance to Extension agents on how to design and conduct trials and demonstrations on alternative products for plant and soil health and pest and disease control purposes. It provides standardized experimental design criteria and best practices for planning and executing trials for these products.

Fusarium Wilt of Soybean

By: Raymond Garcia Rodriguez, Lindsey Thiessen Soybean Disease Information

Fusarium wilt can be an important disease in soybean when it appears. Although not a yearly problem for most of North Carolina producers, it can be locally damaging. The signs and management of the disease are described in this factsheet.

Soybean Mosaic Virus

By: Raymond Garcia Rodriguez, Lindsey Thiessen Soybean Disease Information

Soybean mosaic virus (SMV) is one of the most prevalent and destructive viral pathogens of soybean worldwide. This soybean disease factsheet discusses the range, symptoms, disease cycle, and management of the virus in soybean production in North Carolina.

Cowpea Chlorotic Mottle Virus of Soybean

By: Ashley Joyce, Lindsey Thiessen Soybean Disease Information

This soybean disease information factsheet describes the symptoms and disease cycle of the cowpea chlorotic mottle virus, a disease of soybean and cowpea in North Carolina.

Anthracnose of Soybean

By: Jean Beacorn, Lindsey Thiessen Soybean Disease Information

This soybean disease factsheet covers anthracnose, a fungal disease affecting maturing soybean stems and pods in North Carolina.

White Mold of Soybean

By: Raymond Garcia Rodriguez, Lindsey Thiessen Soybean Disease Information

The symptoms and management of white mold, an important cause of yield loss in soybean in North Carolina, are covered in this soybean disease factsheet.

Seed Decay and Pod Blight

By: Ashley Joyce, Lindsey Thiessen Soybean Disease Information

This soybean disease factsheet discusses various fungi that cause seed decay and pod blight of soybean in North Carolina.

Steam: An Alternative Method of Float Tray Sanitation

By: Kyle Bostian, Grant Ellington, Lindsey Thiessen, Justin Macialek

Due to the limited availability of methyl bromide, tobacco growers need other methods to sanitize float trays prior to reseeding every year. This factsheet offers information on using steam as an alternative.

Brown Spot of Soybean

By: Andrew Ernst, Lindsey Thiessen Soybean Disease Information

Brown spot is a common pathogen in soybeans in North Carolina. Symptoms from brown spot may be confused with other leaf spot pathogens, and accurate diagnosis is important for management decisions.

Bean Pod Mottle Virus

By: Raymond Garcia Rodriguez, Lindsey Thiessen Soybean Disease Information

Virus diseases like bean pod mottle virus can significantly impact soybean yields when disease pressure is high. This factsheet describes the identification and management of bean pod mottle virus.

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