Life Sciences Commons^™

Interdisciplinary Team Addresses Cotton Leafroll Dwarf Virus In Alabama, Kassie N. Conner, Edward Sikora, Jenny Koebernick, Marcio Zaccaron

The Journal of Extension

A multi-state and interdisciplinary team was formed to address the Extension and research needs of CLRDV, an emerging cotton disease with high potential impact for U.S. cotton production. In 2017, CLRDV was identified in AL and Auburn University immediately formed an interdisciplinary working group composed of plant breeders, plant pathologists, entomologists, and agronomists. Since then, scientists from ten other states have joined the CLRDV group. Thus, allowing research to be coordinated efficiently and best deploy limited resources to attend the stakeholder’s needs. The CLRDV group produces and shares new and relevant information with the scientific community and cotton producers alike.

Where To Invest Project Efforts For Greater Benefit: A Framework Formanagement Performance Mapping With Examples For Potato Seed Health, C. E. Buddenhagen, Y. Xing, J. L. Andrade-Piedra, G. A. Forbes, P. Kromann, I. Navarrete, S. Thomas-Sharma, Robin A. Choudhury, K. F. Andersen Onofre, E. Schulte-Geldermann

School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations

Policymakers and donors often need to identify the locations where technologies are most likely to have important effects, to increase the benefits from agricultural development or extension efforts. Higher-quality information may help to target the high-benefit locations, but often actions are needed with limited information. The value of information (VOI) in this context is formalized by evaluating the results of decision making guided by a set of specific information compared with the results of acting without considering that information. We present a framework for management performance mapping that includes evaluating the VOI for decision making about geographic priorities in regional …

2022 Standard-Sized Triploid Watermelon Cultivar Evaluation In Indiana, Wenjing Guan, Dean Haseman, Dennis Nowaskie, Dan Egel

Midwest Vegetable Trial Reports

A total of 6,600 acres of watermelons were planted in southern Indiana in 2021, making Indiana the sixth largest watermelon production state in the US, following Florida, Texas, Georgia, California, and North Carolina (USDA, 2022). Farmers select cultivars based on yield, disease resistance and fruit quality. This annual watermelon cultivar evaluation trial aims to provide watermelon producers and seed companies with information on the performances of different watermelon cultivars in southern Indiana.

2021 Standard-Size Triploid Watermelon Variety Evaluation In Indiana, Wenjing Guan, Dan Egel, Dennis Nowaskie, Dean Haseman

Midwest Vegetable Trial Reports

A total of 6,700 acres of watermelons were planted in Indiana in 2020 with a production value of $46.9 million (USDA 2021). Production in Indiana in 2020 was increased from 6,500 acres and $35.3 million production value in 2019. Primary watermelon type grown in Indiana is standard-sized triploid watermelons. Variety selection based on yield, disease resistance and fruit quality is a key decision in watermelon production. The objective of this study is to provide watermelon producers and seed companies with the updated information on the performance of watermelon varieties grown in Indiana.

Reporting Charcoal Rot In Chia And Developing A Susceptibility Assay, Reis M. Misaka, Hagop S. Atamian Dr., Julien Besnard Dr.

Student Scholar Symposium Abstracts and Posters

Chia (Salvia Hispanica) cross breeds were planted in the summer of 2018 with the intent of selective breeding for agricultural benefit. Preexisting pathogens in the soil caused 40-50% fatality of adult plants. This was surprising due to the precursory knowledge that chia has antibiotic and antifungal oils (Elshafie et. al. 2018); chia was only recently documented to be susceptible to Fusarium wilt (Fusarium oxysporum). The primary pathogen responsible was identified as Macrophomina phaseolina (aka charcoal rot); a widespread soilborne pathogen which has multiple commercial hosts (Su et. al. 2001).

M. phaesolina on wheat seed vector where used as …

The Role Of Disease & Insects In Aspen Ecology, John C. Guyon Ii

Aspen Bibliography

Aspen is a keystone species in montane forests, and enhances a number of key resource values including wildlife habitat, water resources, and fire behavior. Recently, aspen forests have experienced episodes of dieback and decline across western North America (Worrall et al. 2010, Guyon and Hoffman 2011). A large proportion of the dieback and decline has been linked to drought stress or drought-prone locations (Hanna and Kulakowski 2012). However, insects and diseases are commonly found in declining aspen stands, leading to confusion about the role of insects and diseases in aspen ecology. Additionally, aspen has a reputation for being susceptible to …

A Review Of Rat Lungworm Infection And Recent Data On Its Definitive Hosts In Hawaii, Chris N. Niebuhr, Susan I. Jarvi, Shane R. Siers

Human–Wildlife Interactions

Rat lungworm (Angiostrongylus cantonensis) is a zoonotic nematode that causes rat lungworm disease (angiostrongyliasis), a potentially debilitating form of meningitis, in humans worldwide. The definitive hosts for rat lungworm are primarily members of the genus Rattus, with gastropods as intermediate hosts. This parasite has emerged as an important public health concern in the United States, especially in Hawaii, where the number of human cases has increased in the last decade. Here we discuss the current knowledge of the rat lungworm, including information on the life cycle and host species, as well as updates on known infection levels. Three …

Breeding For Resistance In California Strawberry To Verticillium Dahliae, Zachary Christman

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

This article focuses on breeding resistant strawberries to the fungus Verticillium dahliae, common name Verticillium wilt. This is a serious fungal disease that can result in a loss of 50% or more of a strawberry harvest when grown in infested soil. The main goal is to provide an example of how a cultivar can be made more resistant to a plant pathogen with the use of plant breeding methods.

Since 1930 the University of California, Davis, has been developing strawberry cultivars that are adapted to the agricultural industry and regional farms. Developing cultivars that require fewer inputs are of …

Cross-Species Transmission Potential Between Wild Pigs, Livestock, Poultry, Wildlife, And Humans: Implications For Disease Risk Management In North America, Ryan S. Miller, Steven Sweeney, Chris Slootmaker, Daniel A. Grear, Paul A. Di Salvo, Deborah Kiser, Stephanie A. Shwiff

Other Publications in Zoonotics and Wildlife Disease

Cross-species disease transmission between wildlife, domestic animals and humans is an increasing threat to public and veterinary health. Wild pigs are increasingly a potential veterinary and public health threat. Here we investigate 84 pathogens and the host species most at risk for transmission with wild pigs using a network approach. We assess the risk to agricultural and human health by evaluating the status of these pathogens and the co-occurrence of wild pigs, agriculture and humans. We identified 34 (87%) OIE listed swine pathogens that cause clinical disease in livestock, poultry, wildlife, and humans. On average 73% of bacterial, 39% of …

Economic Assessment Of A Highly Pathogenic Avian Influenza Outbreak In Washington And Benton Counties In Arkansas, Antonio Beitia

Graduate Theses and Dissertations

Highly Pathogenic Avian Influenza (HPAI) presents a substantial economic risk to the poultry industry. Domesticated fowl contract HPAI initially through exposure, direct or indirect with migratory waterfowl and outbreaks can result in significant economic losses to growers and the poultry industry at large. A HPAI outbreak occurred in Minnesota and Iowa and spread across over 13 other states in 2014 and 2015. This caused an estimated $1.6 billion in losses (CDC, 2016) and led to shortages of eggs and turkeys together with elevated prices (Anni et al. 2005). Even small outbreaks of HPAI inflict substantial damages as USDA-APHIS guidelines necessitate …

Managing Drought Stress In California Agricultural Systems, Gregory D. Brittain Jr.

Doctor of Plant Health Program: Dissertations and Student Research

California is currently facing a historic drought, and this has led many farmers in the state to severely cut back on irrigation. Optimal use of water for irrigation requires a comprehensive understanding of how plants respond physiologically to water stress (Chapter 1). By monitoring water requirements in crops and managing irrigation to meet those requirements, growers can significantly reduce water use (Chapter 2). This can be done through improving application efficiency of irrigation technology as well as increasing the water use efficiency of the crops themselves. Deficit irrigation practices can be used to manipulate the physiology of water use in …

Occurrence Of A Microsporidium In The Predatory Beetle Calosoma Sycophanta L. (Coleoptera: Carabidae), Mustafa Yaman, Mahmut Eroğlu, Renate Radek

Turkish Journal of Agriculture and Forestry

Calosoma sycophanta L. (Coleoptera: Carabidae) is a voracious predatory beetle that feeds on several important lepidopteran pests. It is mass reared in laboratory breeding and released against forest pests. Any infection in this beetle is undesirable because it impacts production of effective and healthy beetles. In the present study, a microsporidian pathogen was found in C. sycophanta. Mature spores of the pathogen are single, uninucleate, oval, and small, measuring about 3.04 × 1.7 µm. The spore wall is 100 to 110 nm thick and consists of two layers: an electron-dense outer layer, the exospore (30-35 nm), and an electron-lucent inner …

Identification Of Expressed Resistance Gene Analog Sequences In Coconut Leaf Transcriptome And Their Evolutionary Analysis, Muliyar Krishna Rajesh, Kaitheri Edathil Rachana, Sudalaimuthu Asari Naganeeswaran, Rahman Shafeeq, Regi Jacob Thomas, Mohammed Shareefa, Babu Merin, Karun Anitha

Turkish Journal of Agriculture and Forestry

Coconut, an important crop of the tropics and subtropics, is susceptible to a variety of diseases and enhancing disease resistance has been the major goal of coconut breeding programs all over the world. Information on the presence and distribution of disease resistance ® genes, which play a primary role in the detection of pathogens and the initiation of specific plant defenses, is scarce in coconut. In this study, RNA-Seq was used to generate the transcriptome of leaf samples of coconut root (wilt) disease-resistant cultivar Chowghat Green Dwarf. Comprehensive bioinformatics analysis identified 243 resistance gene analog (RGA) sequences, comprising 6 classes …

2013 Wild Blueberry Project Reports, Vivian Wu, Dorothy J. Klimis-Zacas, Frank A. Drummond, Judith A. Collins, Alex Bajcz, Lee Beers, Brianne Looze, Cyndy Loftin, Aaron Hoshide, Sara Bushmann, Kalyn Bickerman, Alison Dibble, Lois Berg Stack, Gabriel Al-Najjar, Elissa Ballman, Seanna L. Annis, Caleb Slemmons, David E. Yarborough, Jennifer L. D'Appollonio, Mary Ellen Camire, Jennifer R. Chadbourne, Michael Dougherty, Katherine Davis-Dentici, Edward Bernard, Tamara Levitsky, Tsutomu Ohno, Erika Lyon, Ellen Mallory, Katie Mcphee, Hannah Griffin, Marianne Sarrantonio

Wild Blueberry Research Reports

The 2013 edition of the Wild Blueberry Project Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Development of effective intervention measures to maintain and improve food safety for wild blueberries

2. Do wild blueberries alleviate risk factors related to the Metabolic Syndrome?

3. Wild Blueberry consumption and exercise-induced Oxidative Stress: Inflammatory Response and DNA damage

4. Control tactics for blueberry pest insects, 2013

5. Pesticide residues on wild blueberry, 2013

6. Biology of pest insects and IPM, 2013 …

Evaluation Of Fixed Sources Of Variation And Estimation Of Genetic Parameters For Incidence Of Bovine Respiratory Disease In Preweaned Calves And Feedlot Cattle, M. J. Schneider, Richard G. Tait Jr., Marshall V. Ruble, W. Darrell Busby, James M. Reecy

Richard G. Tait Jr.

The primary objective of this study was to estimate variance components and heritability of bovine respiratory disease (BRD) incidence in beef calves before weaning and during the finishing phase. The second objective was to investigate the impact of BRD incidence and treatment frequency on performance and carcass traits. Bovine respiratory disease is the biggest and most costly health challenge facing the cattle industry. The 2 populations used consisted of 1,519 preweaned calves and 3,277 head of feedlot cattle. The incidence rate of BRD in preweaned calves was 11.39%, and among treated cattle, 82.1% were treated once, 13.9% were treated twice, …

2012 Wild Blueberry Project Reports, Dorothy J. Klimis-Zacas, Vivian Ch Wu, Frank A. Drummond, Judith A. Collins, Lee Beers, Eric Asare, Alex Bacjz, Kalyn Bickerman, Sara Bushmann, Shannon Chapin, Cyndy Loftin, Alison Dibble, Lois Berg Stack, Eric Venturini, Samuel Hanes, Aaron Hoshide, Matthew S. Jones, Brianne Looze, Seanna L. Annis, Caleb Slemmons, David E. Yarborough, Jennifer L. D'Appollonio, Tsutomu Ohno, Ellen Mallory, Hannah Griffin, Katie Mcphee

Wild Blueberry Research Reports

The 2012 edition of the Wild Blueberry Project Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Do wild blueberries alleviate risk factors related to the Metabolic Syndrome?

2. Development of effective intervention measures to maintain and improve food safety for wild blueberries

3. Control tactics for blueberry pest insects, 2012

4. Development and implementation of a wild blueberry thrips IPM program, 2012

5. IPM

6. Biology of blueberry and pest insects, 2012

7. Biology of beneficial insects and …

Ec00-1207 Growing Onions, Shallots, And Chives, Susan Schoneweis, Laurie Hodges, Loren J. Giesler

Laurie Hodges

The common onion (Allium cepa) is the most popular and widely grown Allium in Nebraska home gardens. Many members of the onion family (Alliaceae) are used in flower gardens because of their interesting flowers and foliage, but here we're going to focus on the onion as a vegetable crop. This publication will discuss the different types of onions and how to grow onions from onion sets, plants, transplants, and seed. It will cover the different cultivars found here in Nebraska, the nutrition, fertilizing, harvesting, curing and storing of onions.

Nf92-69 Selected Vegetable Cultivars For Nebraska, Susan Schoneweis, Laurie Hodges

Laurie Hodges

This NebFact provides information about cultivars of garden vegetables available to grow in Nebraska.

Ec81-1240 Vegetable Gardening In Nebraska, Dale T. Lindgren, Laurie Hodges, Don Steinegger, Ralph E. Neild

Laurie Hodges

Nebraskans are increasing their consumption of fresh vegetables — as appetizers, salads, side dishes, and snacks. Fresh vegetables are an integral part of a healthy, well-balanced diet. Although Nebraska's climate and soil are well-suited for many vegetables, most are supplied from out of the state, even during summer. Growing fresh vegetables can provide higher nutrition and flavor at less expense than buying fresh produce at the grocery store. A garden also can be a source of personal enjoyment and satisfaction. This extension circular helps the gardener decide when, where, and how to plant and maintain a vegetable garden.

Ec96-142 Crp Land Use Guide (Conservation Reserve Program), Douglas Anderson

Douglas Anderson

Conservation Reserve Program (CRP) contracts held by Nebraska producers will begin to expire in 1996. Thousands of acres of grassland will be eligible for haying, grazing or to be returned to other uses. Land-use decisions made by owners and operators will impact the economic viability and long-term productivity of individual farms, as well as the region as a whole. The intent of the CRP Land Use Guide is not to provide all the asnwers - in many instances we don't even know the questions. It is however, intended to provide an outline of the key issues you will face when …

2011 Wild Blueberry Project Reports, Dorothy J. Klimis-Zacas, Frank A. Drummond, Judith A. Collins, Lee Beers, Sara Bushmann, Seanna L. Annis, David E. Yarborough, Kristen Mcgovern, Jennifer L. D'Appollonio, John M. Smagula, Ilse Wind Fastook, Brad Libby, James Patrick Santiago, Alfred A. Bushway, Katherine Davis-Dentici, Brian Perkins, Vivian Ch Wu, Ellen Mallory, Katherine Mcphee, Tsutomu Ohno, Matthew S. Jones

Wild Blueberry Research Reports

The 2011 edition of the Wild Blueberry Project Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Mechanisms through which wild blueberries affect functional characteristics of the arterial wall related to endothelial dysfunction in Spontaneously Hypertensive Rats

2. Do wild blueberries affect high blood lipids, high blood glucose and obesity as related to the Metabolic Syndrome?

3. Control tactics for blueberry pest insects, 2011

4. IPM strategies, 2011

5. Biology and ecology of pest insects, 2011

6. Biology and …

Development Of An Environmental Monitoring System For Greenhouse Disease Management, Crystal Marie Kelly

Masters Theses

A commercial African violet (Saintpaulia ionantha) grower experiences yield loss due to a leaf spot disease known as Corynespora casssiicola. Spotted leaves make the plants unmarketable. Outbreaks of the disease are costly and difficult to prevent. Greenhouse monitoring systems currently available on the commercial market do not have sufficient spatial or temporal resolution to be able to correlate the environmental conditions of the greenhouse with disease outbreaks. A new system was designed specifically to monitor for disease favorable conditions. The system developed for this project consists of several sensor stations and a coordinator station. The coordinator station …

Crop Updates 2007 - Lupins, Pulses And Oilseeds, Mark Seymour, Jacinta Falconer, Ian Pritchard, Rodger Beermier, Wayne Parker, Martin Harries, Kedar Adhikari, Geoff Thomas, Peter White, Bevan Burichell, Mike Baker, Bob French, Jo Walker, Laurie Maiolo, Leigh Smith, Mark Sweetingham, Lorne Mills, Harmohinder Dhammu, Ben Tang, Qifu Ma, Zed Rengel, Bill Bowden, Ross Brennan, Reg Lunt, Tim Hilder, Tim Maling, A. Diggle, D. Thackray, R. A.C. Jones, K. H.M. Siddique, Vijay Jayasena, Leonardus Kardono, Ken Quail, Ranil Coorey, Hannah Williams, Don Elani Jayawardena, Kerry Regan, Rod Hunter, Tanveer Khan, Jenny Garlinge, Heather Clarke, W. Macleod, S. Morgan, A. Harris, Alan Meldrum, Helen Bowers, A. Bakr, Phillip Chambers, Chris Veitch, Tony Leonforte, Pam Burgess, Leanne Young, Brenda Coutts, Donna O'Keefe, Rhonda Pearce, Monica Kehoe, Terri Jasper, Tim Pope, Michael Materne, Ping Si, Mike Walsh, H. H. T. Phan, S. R. Ellwood, J. Hane, A. Williams, R. Ford, S. Thomas, R. Oliver, Katie Robinson, Mohammad Amjad, Graham Walton, Pat Fels, Andy Sutherland, Imma Farre, Michael Robertson, Senthold Asseng3, Ravjit Khangura, Moin Salam

Crop Updates

This session covers forty eight papers from different authors:

2006 REGIONAL ROUNDUP

1. South east agricultural region, Mark Seymour¹ and Jacinta Falconer², ¹Department of Agriculture and Food, ²Cooperative Bulk Handling Group

2. Central agricultural region, Ian Pritchard, Department of Agriculture and Food

3. Great Southern and Lakes region, Rodger Beermier, Department of Agriculture and Food

4. Northern agricultural region, Wayne Parker and Martin Harries, Department of Agriculture and Food

LUPINS

5. Development of anthracnose resistant and early flowering albus lupins (Lupinus albus L) in Western Australia, Kedar Adhikari and Geoff Thomas, Department of …

2006 Lowbush Blueberry Project Reports, Kristi Crowe, Alfred A. Bushway, Rodney J. Bushway, Vivian Ch Wu, Brian Perkins, Pam Small, Darrell Donahue, Frank Drummond, Judith Collins, Floyd Dowell, Dorothy J. Klimis-Zacas, Mary Ellen Camire, Gordon Starr, David E. Yarborough, S Hoffmann, Daniel J. Bell, Seanna L. Annis, Tamara Levitsky, Loretta Kreider, Kristen Mcgovern, K Frost, John M. Smagula, Qian Wang, Kerry Fl Guiseppe

Wild Blueberry Research Reports

The 2006 edition of the Lowbush Blueberry Project Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Evaluation of Emerging Disinfection Technologies for Wild Blueberry Processing

2. Incorporation of wild blueberry puree into a soy-based burger and its effect on sensory and chemical properties of the broiled burgers

3. Infestation Detection using NIRS

4. Mechanism of Action through which Wild Blueberries affect Arterial Functional Properties in Normotensive and Spontaneously Hypertensive Rats

5. Practical Microbial Control Approach for Wild Blueberries …

2005 Wild Blueberry Project Reports, Kristi Crowe, Alfred A. Bushway, Rodney J. Bushway, Russ Hazen, Vivian Ch Wu, Brian Perkins, Pam Small, Darrell Donahue, Frank A. Drummond, Judith A. Collins, Floyd Dowell, Dorothy J. Klimis-Zacas, Gordon Starr, David E. Yarborough, Seanna L. Annis, Kerry Fl Guiseppe, Loretta Kreider, Kristen Mcgovern, John M. Smagula, Qian Wang

Wild Blueberry Research Reports

The 2005 edition of the Wild Blueberry Project Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Evaluation of Emerging Disinfections Technologies for Wild Blueberry Processing

1A. Incorporation of wild blueberry puree into a soy-based burger and its effect on sensory and chemical properties of the broiled burgers.

2. Incorporation of wild blueberry puree into a soy-based burger and its effect on sensory and chemical properties of the broiled burgers

3. Wild blueberries and Arterial Functional Properties

4. Practical …

Ec06-219 2006 Nebraska Swine Report, Duane Reese

University of Nebraska-Lincoln Extension: Historical Materials

The 2006 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating Departments for use in Extension, Teaching and Research programs. This publications deals with research on swine reproduction, breeding, health, nutrition, economics, and housing.

2004 Wild Blueberry Project Progress Reports, Alfred A. Bushway, Rodney J. Bushway, Brian Perkins, Russ Hazen, Vivian Wu, Beth Bernier, Kristi Crowe, Darrell Donahue, Frank Drummond, Judith Collins, Floyd Dowell, Mary Ellen Camire, Dorothy J. Klimis-Zacas, Gordon Starr, David E. Yarborough, Seanna L. Annis, Constance S. Stubbs, Kerry F. Lough, John M. Smagula, Ilse W. Fastook, Qian Wang

Wild Blueberry Research Reports

The 2004 edition of the Wild Blueberry Project Progress Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Determination of Pesticide Residue Levels in Freshly Harvested and Processed Lowbush Blueberries

2. Effect of Wild Blueberry Products on Physical, Chemical, Microbiological and Sensory Quality of Soy-Based and Ground Beef Patties

3. Evaluation of Emerging Disinfection Technologies for Wild Blueberry Processing

4. Detection of Infested Blueberries using Near-Infrared Spectroscopy-Spectra Collection

5. Health Claims for Wild Blueberries

6. Wild blueberries and Arterial …

Ec05-219 2005 Nebraska Swine Report, Duane Reese

University of Nebraska-Lincoln Extension: Historical Materials

The 2005 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating Departments for use in Extension, Teaching and Research programs. This publications deals with research on swine reproduction, breeding, health, nutrition, economics, and housing.

Ec05-1894 Dry Bean Disease Profiles Ii: Fungal Root Rot And Wilt Diseases, Robert M. Harveson, John E. Watkins, Loren J. Giesler, Jennifer L. Chaky

University of Nebraska-Lincoln Extension: Historical Materials

This two-page, 4-color publications profiles the fungal root rot and wilt diseases and symptoms of dry bean. These diseases include: fusarium root rot, rhizoctonia root rot, pythium root rot, fusariuim yellows, and white mold.

Ec05-1893 Dry Bean Disease Profiles I: Foliar And Bacterial Diseases, Robert M. Harveson, John E. Watkins, Loren J. Giesler, Jnenifer L. Chaky

University of Nebraska-Lincoln Extension: Historical Materials

This two-page, 4-color publications profiles the foliar and bacterial diseases and symptoms of dry bean. Diseases discussed include: bean common mosaic/bean yellow mosaic virus, rust, common blight, halo blight, brown spot, bacterial wilt.