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    Biology, Ecology, and Economics of Brown Stink Bug, Euschistus servus (Heteroptera: Pentatomidae), in Desert Cotton Agroecosystems

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    Author
    Brown, Lydia Marie
    Issue Date
    2017
    Keywords
    conservation biological control
    economic entomology
    feeding behavior
    Gossypium hirsutum
    pest outbreak
    pest resurgence
    Advisor
    Ellsworth, Peter C.
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    Brown stink bug, Euschistus servus (Heteroptera: Pentatomidae), is a recently re-emerged pest of cotton in Arizona. It has been present in southwestern desert-grown cotton since at least the early 1900’s, but dropped from primary pest status in the latter half of the twentieth century. Farmers and pest managers did not perceive it as a primary or economic pest until 2011, when elevated numbers of brown stink bugs were reported in isolated valleys of Arizona and southeastern California. Reports increased and became more widespread in the following years. In response to increased abundance of brown stink bug and corresponding cotton boll injury, research was needed to provide information to cotton farmers. First, pest managers needed information on which factors affect the susceptibility of cotton bolls to stink bug feeding (chapter 1). Young bolls are most vulnerable to stink bug injury, and injury is sustained in the first four days of feeding. In addition, research was needed to determine the effects of currently available brown stink bug chemical controls on the broader integrated pest management system in Arizona cotton (chapter 2). Current chemical control options disrupt natural enemy communities, which results in outbreaks and resurgences of other cotton pests. The negative outcomes and additional costs outweigh the benefits of brown stink bug management.
    Type
    text
    Electronic Thesis
    Degree Name
    M.S.
    Degree Level
    masters
    Degree Program
    Graduate College
    Entomology and Insect Science
    Degree Grantor
    University of Arizona
    Collections
    Master's Theses

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