Progress 11/27/13 to 09/30/18
Outputs
Target Audience:This project targets all livestock owners and producers and those that work with those animals (veterinarians, animal scientists, students, etc.). This study collaborates with Animal Science and Food Safety and Technology departments. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?Student Training Davis, Travis. 2017-present. MS Student in Entomology and Plant Pathology. Thesis: TBD but research will consist of field and laboratory work with Tabanids. Research / Academic Awards: J. Wallace & Katie Dean University of Tennessee Graduate Fellowship (2017), Travel fellowship to attend S1060 Regional Hatch Project in Orlando (2018), Bayer LIWC Student Travel Grant to present research at the Livestock Insect Workers Conference in San Juan, Puerto Rico (2018) Presentations: Presented research findings at national (2) and state meetings (1) Student Committees: McKay, Lettie. 2017-2018. MS student in Agricultural Resource Economics. Thesis: Two essays on beef: Restaurants' preference for Tennessee certified beef and cattle producers' preferences for horn fly resistant cattle. PI. K. L. DeLong. Formal classroom instruction Medical and Veterinary Entomology (EPP 425). 3 credit hour course (2 hrs of lecture and 1 hr of laboratory). Identification, biology, and control of arthropods that attack major livestock species. Introduction to entomology, methods of insect control, major pest species groups, and problems associated with specific host production operations. Spring 2018 (7 students Medical and Veterinary Entomology (EPP 525). 3 credit hour course (2 hrs of lecture and 1 hr of laboratory). Identification, biology, and control of arthropod parasites of humans and animals. Focus on arthropods and their biology, life histories, habitats, hosts, and options for management. Review and discussion of sampling/monitoring methods, and decision-making guidelines to managing vector-borne diseases also will be addressed. Includes an in-depth research experience requiring a manuscript submission for publication. Spring 2018 (4 students) How have the results been disseminated to communities of interest?Conference Presentations a supervised student, b committee member International (2) Trout Fryxell RT, P. Olafson, S. Schexnayder, K. DeLong, L. McKay, A. Griffith, K. Friesen, D. Taylor, J. Keele, L. Kuehn, M. Staton, and E. Psota. November 2018. Finding the trait in the pasture: some cattle ARE resistant to Haematobia irritans and producers are willing to pay for the trait. Entomological Society of America / Entomological Society of Canada, Vancouver, BC Canada. Davis, T., D. Kline, B. Mullens, M. Pape?, and R. Trout Fryxell. November 2018. Molecular barcoding and niche modeling analysis of horse flies in the southeastern United States. Entomological Society of America / Entomological Society of Canada, Vancouver, BC Canada. National (3) Davis, T., D. Kline, B. Mullens, M. Papes, J. K. Moulton, and R. Trout Fryxell. January 2018. Molecular barcoding and niche modeling analysis of horse flies in the southeastern United States. Multistate Project Stemp-1076: Fly Management in Animal Agriculture Systems and Impacts on Animal Health and Food Safety. Received travel fellowship to present research at this meeting. Trout Fryxell RT, McKay, DeLong, Schexnayder, Griffith, Staton, Psota, Taylor, Friesen, Kuehn, Keele, and Olafson. June 2018. A justification to produce sustainable beef and our 5-year plan to get us moving in that direction. Livestock Insect Workers Conference, San Juan, PR. Davis, T., D. Kline, B. Mullens, M. Papes, J. K. Moulton, and R. Trout Fryxell. June 2018. Molecular barcoding and niche modeling analysis of horse flies in the southeastern United States. Livestock Insect Workers Conference, San Juan, PR. Received $500 student travel fellowship to present research at this meeting. What do you plan to do during the next reporting period to accomplish the goals?
Nothing Reported
Impacts
What was accomplished under these goals?
Flies are among the most important pests in livestock and poultry production systems and are responsible for financial impacts in excess of a billion dollars per year due to direct and indirect damage and control costs. (1) Over the past year, my graduate student collected horse flies from the southeastern United States and is beginning to create relative activity, identify DNA barcodes, and create ecological niche models for these flies. This work is ongoing. (2) We determined the cow-calf producers' value of the horn fly resistant trait. An ~44 question survey was written and developed by a group of academics and USDA scientists, and it was developed it into the Qualtrics system. We then took the survey, and we requested producers to "test" the survey for ease and readability. These producers included REC Center directors, and our friends/family/colleagues. Questions were written to understand 1) background/presence/awareness of flies to each producer, 2) current management and treatments, 3) value-related questions, 4) preferences and perceptions, and 5) demographics. The survey was distributed via email on September 14, 2017 to Tennessee producers participating in the Tennessee Agriculture Enhancement program. One reminder email was sent December 1, 2017. The survey was also sent to members of the Texas and Southwestern Cattle Raisers Association via association email. Results. In total, 465 Tennessee producers and 317 Texas producers participated and we found out that 97.04% of the 742 participants said yes to, "assuming it would be profitable to make your entire herd resistant to horn flies would you be interested in doing so?" We also found out that both Tennessee and Texas producers would pay more for a resistant animal. Nearly 50% of the Tennessee producers and 75% of the Texas producers would pay more than $1500 for a resistant bull and they thought profitability, cow comfort, and weight gain would increase. We submitted a manuscript to the Journal of Economic Entomology. Our next step is to prepare a second manuscript for the Journal of Integrated Pest Management and it will include the survey results of perceptions and management options. (3) We are also identifying loci associated with horn fly resistance with a group from academia and USDA-ARS. We genotyped animals from USDA-MARC, Texas/Kerrville, and University of Nebraska, and are submitting samples from the University of Tennessee. We are working to genotype and phenotype more animals as funding becomes available.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
" Theuret DP a, Trout Fryxell RT c. 2018. Surveillance of ticks parasitizing Tennessee beef cattle and implications for future surveillance programs. Journal of Medical Entomology. 55(6): 1517-1526. https://doi.org/10.1093/jme/tjy131
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
" Mullens BA, Hinkle NC, Trout Fryxell RT, Rochon K. 2018. Past, present, and future contributions and needs for veterinary entomology in the United States and Canada. American Entomologist. 64(1): 20-31. https://doi.org/10.1093/ae/tmy006
- Type:
Journal Articles
Status:
Under Review
Year Published:
2019
Citation:
" Olafson, P., P. Kaufman, G. Duvallet, J. Solorzano, D. Taylor, and R. T. Trout Fryxell. Frequency of kdr and kdr-his alleles in stable fly (Diptera: Muscidae) populations from the United States, Costa Rica, France, and Thailand. Submitted September 2018 to Journal of Medical Entomology (MS ID: JME-2018-0332).
- Type:
Journal Articles
Status:
Under Review
Year Published:
2019
Citation:
" McKay, L. b, K. DeLongc, S. Schexnayder, A. Griffith, D. Taylor, P. Olafson, and R. T. Trout Fryxellc. Cow-calf producers willingness to pay for bulls resistant to horn flies, Haematobia irritans (L.) (Diptera: Muscidae). Submitted October 208 to Journal of Economic Entomology (MS ID: ECONENT-2018-0679). Trout Fryxell and DeLong requested co-corresponding authorship.
- Type:
Book Chapters
Status:
Published
Year Published:
2019
Citation:
" Nauyduch D, Olafson P, Trout Fryxell RT. 2019. Chapter 28: Molecular Tools Used in Medical and Veterinary Entomology (673-691). In: Durden LA and Mullen GB, editors. Medical and Veterinary Entomology 3rd Edition. Academic Press. ISBN: 978-0-12-814043-7
- Type:
Other
Status:
Published
Year Published:
2018
Citation:
" Wicks, H.F., R. T. Trout Fryxell, J. Ivey. 2018. West Nile virus for the equine owner. University of Tennessee Institute of Agriculture; Extension Publication W775. https://extension.tennessee.edu/publications/Documents/W775.pdf.
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Progress 10/01/16 to 09/30/17
Outputs
Target Audience:This project targets all beef and dairy cattle producers and those that work with those animals (veterinarians, animal scientists, students, etc.). This study collaborates with Animal Science and Food Safety and Technology departments at the University of Tennessee. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided? Theuret, David. 2015--2017. MS Student in Entomology and Plant Pathology. Thesis: Regional discoveries of tick microbiomes and diversity of ticks that parasitize Tennessee beef cattle. Davis, Travis. 2017-present. MS Student in Entomology and Plant Pathology. Thesis: Phylogenetics and distributions of Tabanus flies (Diptera: Tabanidae) in the southeastern United States. McKay, Lettie. 2017-current. MS student in Agricultural Resource Economics. Thesis: Two essays on beef: Restaurants' preference for Tennessee certified beef and cattle producers' preferences for horn fly resistant cattle. PI. K. L. DeLong. How have the results been disseminated to communities of interest?Conference Presentations a supervised student, b committee member Invited Trout Fryxell RT. November 2017. Understanding horn flies to improve animal health and welfare. Southeast Quality Milk Initiative. Nashville, TN. Trout Fryxell RT and Theuret DP. March 2017. Ectoparasites of beef cattle. 60 min. presentation to the 2017 Knox area Advanced Master Beef Producer Course. Submitted Davis T a, Trout Fryxell RT, Kline D, Mullens B. October 2017. Molecular phylogeny and niche modeling analysis of horse flies in the southeastern United States. Tennessee Entomological Society, Nashville, TN. Mullens B, Trout Fryxell RT. June 2017. Searching for sulcifrons. Livestock Insect Workers Conference, Savannah GA. Gorman SJ, Nettles VE, Smith DM, Paulsen DJ, Trout Fryxell RT, Wszelaki AL, Buchanan JR, Critzer FJ. June 2017. Flies as possible vectors for transfer of STEC and Salmonella to fresh produce. International Association for Food Protection. Theuret DP a , DeBruyn JM, Staton ME, Trout Fryxell RT. March 2017. Protecting human and animal health through microbiome exploration. Tennessee Mosquito and Vector Control Association, Nashville, TN. 1st place student presentation. Theuret DP a, DeBruyn J, Staton M, Trout Fryxell RT. March 2017. Investigating the microbial communities of ticks that threaten beef cattle in the southeastern United States. Southeastern Branch of the Entomological Society of America, Memphis TN. 2nd place Student MS Oral Presentation. What do you plan to do during the next reporting period to accomplish the goals?Current horse fly (Tabanus) research includes identifying a minimum of two species within the Tabanus sulcifrons species complex using morphological, genetic, and ecological methods (UC Riverside collaborator Mullens) and Tabanus phylogenetics (USDA-ARS collaborator Kline). With USDA-ARS collaborator in Nebraska, I am collaborating with Friesen to discover single nucleotide polymorphisms and conduct a preliminary population genetics study on stable flies representing collections from throughout North America with a variety of ovarian phenotypes. Additionally, I am surveying Tennessee and Texas beef producers' opinions, preferences, and knowledge about veterinary pests with an emphasis on horn flies. These survey data will be used in a multi-agency proposal (3 institutions and 3 USDA-ARS laboratories) that I am leading to identify the genetic mechanisms, phenotypic procedures, and economic considerations for the development of horn fly resistant cattle as an alternative and sustainable approach for cattle producers (spring 2018 submission).
Impacts
What was accomplished under these goals?
Impact of Veterinary Flies on Livestock Health and Comfort: Flies are among the most important pests in livestock and poultry production systems and are responsible for financial impacts in excess of a billion dollars per year due to direct and indirect damage and control costs. My research efforts with these flies have largely been in collaboration with ongoing food safety and animal welfare projects. My role in each of these projects is to identify the contribution flies have in dispersing (using population genetics to identify distinct populations and those actively mixing), transmitting bacterial pathogens (human and animal health), and how the flies affect animal production and comfort. I confirmed that flies contribute to pathogen dispersal and are a food safety concern (UT collaborators Critizer, Wszelaki, Lockwood, Buchanans). Research on calf health and welfare (UT collaborator Krawczel) identified that flies affect calf development, and a feed through insecticide is not enough to minimize fly populations. Nematodes can invade house fly larvae, but are not nearly as effective as a substrate to suppress the fly population around calf hutches (UT collaborator Grewal). Additionally, I am finding genetic (kdr) and phenotypic insecticide resistance in horn flies at cattle operations with integrated farming (cattle and crops) (USDA-ARS collaborator Olafson). Outputs: Since 2012, one manuscript has been published, one is submitted, and three manuscripts are in preparation for submission. Under my direct supervision, one graduate student and one veterinary medicine student worked on mitigating the impact of veterinary flies on livestock health and comfort. The unifying aspect of this work is that these veterinary important flies are vectors of pathogens to humans and animals.
Publications
- Type:
Journal Articles
Status:
Accepted
Year Published:
2018
Citation:
Mullens BA, Hinkle NC, Trout Fryxell RT, Rochon K. Past, present, and future contributions and needs for veterinary entomology in the United States and Canada. Accepted for publication in the American Entomologist, no MS ID provided.
- Type:
Journal Articles
Status:
Submitted
Year Published:
2018
Citation:
Kurman CA b, Paulsen DP, Trout Fryxell RT, Krawczel P c. The effect of Muscid flies on pre-weaned dairy calves. Submitted June 2017 to the Journal of Economic Entomology.MS ID ECONENT-2017-0330.
- Type:
Conference Papers and Presentations
Status:
Submitted
Year Published:
2017
Citation:
Invited:
1. Trout Fryxell RT. April 2017. Rickettsiosis in the southeastern United States may be linked to a tick undergoing range expansion. Department of Entomology Seminar Series, University of Georgia, Athens, GA.
2. Trout Fryxell, RT. March 2017. Rickettsiosis in the southeast: emerging, discovering, incriminating, or other? Invited talk within the Emerging vector-borne pathogens of human and animal disease symposium at the Southeastern Branch of the Entomological Society of America, Memphis TN.
3. Trout Fryxell RT. March 2017. Rickettsiosis in the southeastern United States may be linked to a tick undergoing range expansion. John New Memorial Epidemiologist Forum, University of Tennessee Knoxville, TN.
Submitted:
4. Trout Fryxell RT, DeBruyn JM. November 2017. A less diverse tick microbiome is associated with Rickettsia-infected ticks. Selected abstract for oral presentation. American Society of Tropical Medicine and Hygiene, Baltimore, MD.
5. Rowe D a, Trout Fryxell RT. October 2017. Mosquitoes, models, and maps: understanding and assessing Aedes mosquito populations in Knox County, TN. Tennessee Entomological Society, Nashville, TN.
6. Butler R b,, Trout Fryxell RT, Houston A, Kennedy M. October 2017. An assessment of competition between the deer tick and American dog tick on white-footed deer mouse. Tennessee Entomological Society, Nashville, TN.
7. Ghatak M a, Hardison B a, Urcuyo J a, Wise P a, Trout Fryxell RT, Lenhart S. July 2017. Modeling the spread of La Crosse virus in Knox County, TN. SRE-NIMBioS, University of Tennessee, Knoxville, TN.. Poster was also presented at the Discovery Day poster session led by the Office of Undergraduate Research; August 2017.
8. Trout Fryxell RT, Vogt JT. June 2017. Documenting tick encounters and associated pathogens across the southeast: a collaborative effort between the University of Tennessee and the US Forest Service Southern Research Station, Forest Inventory Analysis. Southern Forest Insect Workers Conference, Melbourne, FL.
9. Dixson A a, Yates S a, Waterson K a, Paulsen D, Trout Fryxell RT. April 2017. Identifying the oviposition preferences of Aedes mosquitoes. Eur?ka: Exhibition of undergraduate research and creative achievement. University of Tennessee, Knoxville, TN.
10. Dixson A a, Yates S a, Waterson K a, Paulsen D, Trout Fryxell RT. March 2017. Oviposition preference for Aedes mosquitoes in Knox county Tennessee. Tennessee Mosquito and Vector Control Association, Nashville, TN.
11. Trout Fryxell, RT. March 2017. Rickettsiosis in the southeast: emerging, discovering, incriminating, or other? Tennessee Mosquito Vector Control Association, Nashville, TN.
12. Trout Fryxell, RT. March 2017. Improving surveillance for Aedes mosquitoes and their pathogens in eastern Tennessee. Women in STEM research symposium, University of Tennessee, Knoxville TN.
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Progress 10/01/15 to 09/30/16
Outputs
Target Audience:This project targets all beef and dairy cattle producers and those that work with those animals (veterinarians, animal scientists, students, etc. ). This study collaborates with Animal Science and Food Safety and Technology departments. Changes/Problems:Nothing to report What opportunities for training and professional development has the project provided? Medical and Veterinary Entomology (EPP 425). 3credit hour course (2 hrs of lecture and 1 hr of laboratory). Identification, biology, and control of arthropods that attack major livestock species. Introduction to entomology, methods of insect control, major pest species groups, and problems associated with specific host production operations. Taught as described above in 2016 (1 student) Theuret, David. 2015--present. MS Student in Entomology and Plant Pathology. Thesis: Regional discoveries of tick microbiomes and diversity of ticks that parasitize Tennessee beef cattle. Mullens, Bradley. PhD. Summer-fall 2016. Sabatical project in my research program was Is Tabanus sulcifrons a species complex? July - October 2016. Dr. Mullens (UC Riverside Professor of Veterinary Entomology) conducted his sabbatical with my program and learned molecular skills such as DNA extraction, and gene amplification via PCR. Cook, Martha. Summer 2016. Project in my research program was Insecticide resistance in stable flies. She was a summer veterinary student with salary support sponsored by Center of Excellence in Livestock Diseases and Human Health Summer Student within the Univ. of Tenn. Veterinary Medicine School. How have the results been disseminated to communities of interest?Conference Presentations Theuret D*, Paulson D, Trout Fryxell RT. September 2016. Regional discoveries of the ticks parasitizing Tennessee beef cattle. International Congress of Entomology & Entomological Society of America, Orlando FL. 1st Place Student Oral Presentation. Theuret D*, Trout Fryxell RT. June 2016. Improving surveillance of current and potential tick threats to the Tennessee beef cattle industry. Livestock Insect Workers Conference, Tulsa, OK. Theuret D*, Trout Fryxell RT. May 2016. An unseen enemy: the ticks that parasitize Tennessee beef cattle. UTK Vet. Med. Comparative & Experimental Medicine and Public Health Research Symposium. Knoxville, Tennessee, USA. What do you plan to do during the next reporting period to accomplish the goals?Once sites and collaborations are established I am working to identify the genetic mechanisms behind horn fly, Haematobia irritans, resistance in beef cattle. I have also started collaborations with USDA personnel to start assessing the population structure of the stable fly, Stomoxys calcitrans.
Impacts
What was accomplished under these goals?
Impact of Veterinary Flies on Livestock Health and Comfort: Muscoid flies are among the most important pests in livestock and poultry production systems. Three species in particular, house (Musca domestica), stable (Stomoxys calcitrans), and horn (Haematobia irritans) flies are responsible for an excess of a billion dollars per year for damage and control costs in the United States. My research efforts with these flies have largely been in collaboration with ongoing food safety and animal welfare projects. My role in each of these projects is to identify the contribution flies have in dispersing bacterial pathogens (human and animal health) and how the flies affect animal production and comfort. With Drs. Faith Critzer (FC_Food Science and Technology), John Buchanan (JB-Biosystems Engineering and Soil Science), and Annette Wszelaki (AW-Plant Science), we are evaluating the role that flies have in spreading bacterial pathogens in and around produce. Flies were monitoredweekly from 24-April to 22October 2015 from ten different QuikStrike fly traps (Wellmark International) which attract flies with an attractant and kills flies with an insecticide. Specimens were identified to genus, species if possible,with morphological keys, and sorted by trap, date, and speciesinto pools of less than 15 specimens for bacterial analyses.During this period a total of 2505 flies were collected with a majorityrepresenting members of the Calliphoridae (8genera/species, 1383 specimens), Muscidae (13 genera/species, 658 specimens), and Sarcophagidae (20 genera/species, 426 specimens). Populations varied over time (likely in response to weather). This provided us with 802 pools for pathogen detection. We are currently screening the flies for different pathogens. With Dr. Peter Krawczel (PK-Animal Science), we are quantifying the negative effects of fly pressure on calf welfare. The work with PK has identified that flies affect calf development, but also that a feed through insecticide is not enough to minimize fly populations. Outputs: I am developing the preliminary data for proposals. To date, five manuscripts are in preparation for submission, and two are still generating datasets. These datasets will serve as preliminary data for future proposals. 2016 Experiment Station Section Award for Excellence in Multistate Research
Publications
- Type:
Journal Articles
Status:
Submitted
Year Published:
2017
Citation:
1. Mullens BA, Hinkle NC, Trout Fryxell RT, Rochon K. Past, present, and future contributions and needs for veterinary entomology in the United States and Canada. Submitted November 2016 to the American Entomologist, no MS ID provided.
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Progress 10/01/14 to 09/30/15
Outputs
Target Audience:This project targets all beef and dairy cattle producers and those that work with those animals (veterinarians, animal scientists, students, etc). This study collaborates with Animal Science and Food Safety and Technology departments. ? Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?A graduate student (MS) has started work on this project. How have the results been disseminated to communities of interest?
Nothing Reported
What do you plan to do during the next reporting period to accomplish the goals?We will continue to apply for funding,preparea mansucript for publication in a referred journal, and share preliminary results at regional and national meetings.
Impacts
What was accomplished under these goals?
Impact of Veterinary Flies on Livestock Health and Comfort: Muscoid flies are among the most important pests in livestock and poultry production systems. Three species in particular, house (Musca domestica), stable (Stomoxys calcitrans), and horn (Haematobia irritans) flies are responsible for an excess of a billion dollars per year for damage and control costs in the United States. My research efforts with these flies have largely been in collaboration with ongoing food safety and animal welfare projects. My role in each of these projects is to identify the contribution flies have in dispersing bacterial pathogens (human and animal health) and how the flies affect animal production and comfort. With Dr. Peter Krawczel (Animal Science), we are quantifying the negative effects of fly pressure on calf welfare. With Drs. Faith Critzer (Food Science and Technology), John Buchanan (Biosystems Engineering and Soil Science), and Annette Wszelaki (Plant Science) I am evaluating the role that flies have in spreading bacterial pathogens in and around produce. Impacts: Thus far, these studies have corroborated previous studies that flies negatively affect animals and contribute to pathogen spread. The work with PK has identified that flies affect calf development, but also that a feed through insecticide is not enough to minimize fly populations. Future Studies: Once sites and collaborations are established with research publications, two projects will be proposed. The first is to identify techniques to create a barrier for fly dispersal around produce farms (with FC, JB, AQ). The second is to identify the genetic mechanisms behind horn fly resistance in beef cattle. We are currently assessing horn fly populations at three of the research and education centers and have a draft . Outputs: I have be developing the preliminary data for proposals. To date, three manuscripts are nearly prepared for submission, and two are still generating datasets. These datasets have served as preliminary data for three funded projects and several proposals.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Pompo K*, Mays S*, Wesselman C*, Paulsen D, Trout Fryxell RT. Survey of ticks collected from Tennessee cattle and their pastures for Anaplasma and Ehrlichia species. In Press J of Parasitology. MS ID: 15-814R1.
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Progress 11/27/13 to 09/30/14
Outputs
(N/A)
Impacts
What was accomplished under these goals?
Impact of Veterinary Flies on Livestock Health and Comfort: Muscoid flies are among the most important pests in livestock and poultry production systems. Two species in particular, house fly (Musca domestica) and stable fly (Stomoxys calcitrans), are responsible for an excess of a billion dollars per year in the United States for damage and control costs. I have established colonies of both fly species and initiated research in collaboration with the Animal Science and Food Science departments at UTIA. My role in each of these projects is to identify the contribution flies have in dispersing bacterial pathogens (human and animal health) and how the flies affect animal production and comfort. With Dr. Peter Krawczel (Animal Science), we have been attempting to quantify the negative effects of fly pressure on calf welfare; three manuscripts are in preparation for submission to referred journals. With Dr. Faith Critzer (Food Science and Technology) and John Buchanan (Biosystems Engineering and Soil Science), I am evaluating the role that flies have in spreading bacterial pathogens on diversified farms. With Parwinder Grewal (Entomology and Plant Pathology), I am conducting funded research on efficacy of three nematode species at four concentrations within four different substrates at killing house fly larvae. Additionally, I have been working with Dr. Bobby Simpson (ETREC) and Dr. Chris Boyer (Agriculture Economics) to determine the economic impacts of a fall vs. spring calving season based on the hypothesis that fly pressure plays a significant role in economic differences between calving seasons.
Publications
- Type:
Journal Articles
Status:
Other
Year Published:
2015
Citation:
Kurman CA, Paulsen DP, Trout Fryxell RT, Krawczel P. The effect of Muscid flies on pre-weaned dairy calves. In preparation for 2015 submission to Journal of Economic Entomology.
Trout Fryxell RT, Hendricks BM, Ingle HD, Kurman CA, Paulsen DP, Krawczel P,. Evaluation of tetrachlorvinphos and diflubenzuron larvicides on calf behavior and as a fly management option. In preparation for 2015 submission to Journal of Dairy Science.
Krawczel P, Kurman CA, Hendricks BM, Paulsen DP, Trout Fryxell RT. Evaluation of pelleting on Bayer Rabon larvicide on calf behavior, physiology and effectiveness. In preparation for 2015 submission to Journal of Dairy Science.
Pompo K, Mays S, Wesselman C, Paulsen D, Trout Fryxell RT. Occurrence of Ehrlichia and absence of Anaplasma species in ticks associated with Tennessee cattle. In preparation for 2014/15 submission to Journal of Medical Entomology.
- Type:
Conference Papers and Presentations
Status:
Submitted
Year Published:
2013
Citation:
Kurman CA, Paulsen D, Trout Fryxell RT, Krawczel PD. June 2013. The effect of muscid flies on the welfare of pre-weaned dairy calves. Livestock Insect Workers Conference, Nebraska City, Nebraska, USA. 15 min. oral presentation.
- Type:
Other
Status:
Published
Year Published:
2013
Citation:
Kurman CA, Trout Fryxell B. Winter considerations for reducing stable fly populations. UT Parlor Newsletter. University of Tennessee Extension. Fall 2013. http://animalscience.ag.utk.edu/Dairy/pdf/NewsLetter/UTParlorNewsFall13.pdf
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