Environmental Entomology (2009) 38, 1521-1526

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Mathew L. Brust, W. Wyatt Hoback and Robert J. Wright (2009)
Degree-day requirements for eight economically important grasshoppers (Orthoptera: Acrididae) in Nebraska using field data
Environmental Entomology 38 (5), 1521-1526
Abstract: The timing of application for the management of rangeland grasshoppers (Orthoptera: Acrididae) is critical, especially as insecticides become more specialized and the use of Insect Growth Regulators becomes more widespread. The general seasonal occurrence of adults of many grasshopper species has been well documented; however, their appearance varies widely between years. We analyzed sweep samples collected over the western two thirds of Nebraska from a 3-yr period and noted the occurrence of adults by region for eight species of rangeland grasshoppers. We analyzed occurrence based on degree-day accumulations for the region and developed estimates of degree-day requirements for these species. Because these grasshopper species are common rangeland pests, degree-day requirements to reach adulthood should improve the effectiveness of grasshopper treatment programs over a large geographic area.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): W. Wyatt Hoback

Research topic(s) for pests/diseases/weeds:
control - general

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Melanoplus sanguinipes U.S.A. (mid N)
Ageneotettix deorum U.S.A. (mid N)
Melanoplus femurrubrum U.S.A. (mid N)
Phoetaliotes nebrascensis U.S.A. (mid N)
Amphitornus coloradus U.S.A. (mid N)
Opeia obscura U.S.A. (mid N)
Orphulella speciosa U.S.A. (mid N)
Melanoplus angustipennis U.S.A. (mid N)