Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: Jul 17, 2026

Laboratory Rearing of Stable Flies and Other Muscoid Diptera

Laboratory Rearing of Stable Flies and Other Muscoid Diptera

Published on: August 3, 2018

Comparing Visual and Digital Counting Methods to Estimate Horn Fly (Diptera: Muscidae) Populations on Cattle.

B G Smythe¹, S Urias¹, M E Wise¹

¹Center for Animal Health and Food Safety New Mexico State University, Las Cruces, NM 88003.

Journal of Medical Entomology

|April 12, 2017

Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Influence of Monensin and Diflubenzuron on the Control of Immature Horn Fly and House Fly (Diptera: Muscidae) and Chemical Composition of Cattle Feces.

Journal of medical entomology·2022

Same author

Bi-national outbreak of <i>Salmonella</i> Newport infections linked to onions: the United States experience.

Epidemiology and infection·2022

Same author

The Effect of Horn Fly (Diptera: Muscidae) Infestation on Behavior, Water, and Feed Intake, and Digestion Characteristics of Beef Cattle.

Journal of economic entomology·2021

Same author

Crude glycerin alters beef cow ruminal fluid degradability of nutrients in vitro.

Translational animal science·2020

Same author

Public health investigation and response to a hepatitis A outbreak from imported scallops consumed raw-Hawaii, 2016.

Epidemiology and infection·2018

Same author

Post-Campylobacter Guillain Barré Syndrome in the USA: secondary analysis of surveillance data collected during the 2009-2010 novel Influenza A (H1N1) vaccination campaign.

Epidemiology and infection·2018

Visual assessments by experienced technicians provided higher horn fly population estimates than digital methods. Morning counts were more accurate across all techniques for integrated pest management strategies.

Area of Science:

Veterinary Entomology
Livestock Management

Background:

Horn fly (Haematobia irritans) population estimates are crucial for effective pest control in cattle.
Digital photography is a proposed alternative to traditional visual assessments for estimating horn fly populations.

Purpose of the Study:

To compare the accuracy of visual and digital techniques for estimating horn fly populations on cattle.
To evaluate the influence of technician experience and time of day on population estimates.

Main Methods:

Artificially infested yearling heifers with four horn fly levels (0-1000 flies).
Conducted visual estimates by experienced (VE1) and inexperienced (VE2) technicians.
Utilized digital photographs for horn fly counts (CDC and DDC methods).
Recorded estimates at 0700, 1200, and 1900 hours.

Keywords:

Haematobia irritans cattle estimate photograph

More Related Videos

Visualizing Efficacy of Pesticides Against Disease Vector Mosquitoes in the Field

Visualizing Efficacy of Pesticides Against Disease Vector Mosquitoes in the Field

Published on: March 16, 2019

Quantifying Drosophila melanogaster Eye Phenotypes: A Computational Approach Integrating ilastik and Flynotyper

Quantifying Drosophila melanogaster Eye Phenotypes: A Computational Approach Integrating ilastik and Flynotyper

Published on: October 4, 2024

Related Experiment Videos

Last Updated: Jul 17, 2026

Laboratory Rearing of Stable Flies and Other Muscoid Diptera

Laboratory Rearing of Stable Flies and Other Muscoid Diptera

Published on: August 3, 2018

Visualizing Efficacy of Pesticides Against Disease Vector Mosquitoes in the Field

Visualizing Efficacy of Pesticides Against Disease Vector Mosquitoes in the Field

Published on: March 16, 2019

Quantifying Drosophila melanogaster Eye Phenotypes: A Computational Approach Integrating ilastik and Flynotyper

Quantifying Drosophila melanogaster Eye Phenotypes: A Computational Approach Integrating ilastik and Flynotyper

Published on: October 4, 2024

Main Results:

Experienced technicians (VE1) provided significantly higher population estimates than other methods.
Morning (0700 h) estimates were consistently higher across all counting techniques.
A significant interaction between time of observation and infestation level was observed.

Conclusions:

Current visual and digital methods require standardization for reliable horn fly population estimation.
Further research is needed to validate these techniques for integrated pest management programs.
Technician experience and time of day significantly impact horn fly count accuracy.