Population dynamics and management of potato leafhopper and other insect pests in forage systems

dc.contributor.advisor Larry P. Pedigo
dc.contributor.author DeGooyer, Todd
dc.contributor.department Entomology
dc.date 2018-08-23T12:05:13.000
dc.date.accessioned 2020-06-30T07:13:03Z
dc.date.available 2020-06-30T07:13:03Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 1997
dc.date.issued 1997
dc.description.abstract <p>The potato leafhopper, Empoasca fabae (Harris) (Homoptera: Cicadellidae) is a major insect pest of alfalfa in the north central and northeastern United States. Studies were conducted from 1994 through 1996 to better understand the population dynamics of potato leafhopper in Iowa, as well as improve sampling and management of this and other alfalfa pests. The specific objectives of this dissertation were to (1) understand the population dynamics and diurnal activity of potato leafhopper in Iowa forage systems; (2) determine the effect of alfalfa-forage grass intercrops on potato leafhopper, as well as other alfalfa insect pests and predators; (3) assess the impact of intercropping on forage growth characteristics for determining the feasibility of intercropping as a management tactics; and (4) develop grower-oriented sampling techniques and a management program for potato leafhopper in alfalfa. These studies improved the sampling and management of potato leafhopper and other insect pests in alfalfa. We found that (1) potato leafhopper populations can reach economic levels in any of the three alfalfa crops; (2) there are differences in the number of potato leafhoppers captured at different times of the day; (3) alfalfa-forage grass intercrops reduce insect pest populations compared to monocultures; and (4) the sticky trap sampling technique seems the most promising technique for use in a management program.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/11455/
dc.identifier.articleid 12454
dc.identifier.contextkey 6455329
dc.identifier.doi https://doi.org/10.31274/rtd-180813-10485
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/11455
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/64714
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/11455/r_9725406.pdf|||Fri Jan 14 18:50:33 UTC 2022
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Entomology
dc.subject.keywords Entomology
dc.title Population dynamics and management of potato leafhopper and other insect pests in forage systems
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
relation.isOrgUnitOfPublication f47c8cad-50be-4fb0-8870-902ff536748c
thesis.degree.level dissertation
thesis.degree.name Doctor of Philosophy
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