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Using Visual and Digital Imagery to Quantify Horn Fly (Diptera: Muscidae) Densities
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Using Visual and Digital Imagery to Quantify Horn Fly (Diptera: Muscidae) Densities
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Journal Article
Using Visual and Digital Imagery to Quantify Horn Fly (Diptera: Muscidae) Densities
2020
Overview
The horn fly, Haematobia irritans L. (Diptera: Muscidae), is a persistent pest of cattle globally. A threshold of 200 flies per animal is considered the standard management goal; however, determining when that threshold has been exceeded is difficult using visual estimates that tend to overestimate the actual fly densities and are, at best, subjective. As a result, a more reliable and durable method of determining horn fly densities is needed. Here, we describe the methods commonly used to quantify horn fly densities including visual estimates and digital photography, and provide examples of quantification software and the prospect for computer automation methods.
Publisher
Oxford University Press
