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Browse by Author: Lindsey Thiessen
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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.

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.

North Carolina Soybean Production Guide

By: Katherine Drake Stowe, Rachel Vann, Carl Crozier, Gary Bullen, Jim Dunphy, Wesley Everman, Luke Gatiboni, Adrienne Gorny, David Hardy, Ryan Heiniger, Steph Kulesza, Deanna Osmond, Nick Piggott, Dominic Reisig, Gary Roberson, Heidi Schweizer, 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.

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.

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.

Disease and Nematode Management

By: Lindsey Thiessen, Adrienne Gorny

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.