Authors: Brust, Mathew L.; Hoback, W. Wyatt; Wright, Robert J.

Source: Environmental Entomology, Volume 38, Number 5, October 2009 , pp. 1521-1526(6)

Publisher: Entomological Society of America

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.

Keywords: grasshopper development; rangeland; degree-day; phenology

Document Type: Research article

Affiliations: 1: Department of Biology, Chadron State College, 1000 Main St., Chadron, NE 69337

Publication date: 2009-10-01

More about this publication?

• Environmental Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes reports on the interaction of insects with the biological, chemical, and physical aspects of their environment and is divided into the following sections: physiological ecology; chemical ecology; population ecology; quantitative ecology; community and ecosystem ecology; biological control­-parasitoids and predators; biological control--microbials; biological control--weeds; behavior; pest management; sampling; plant-insect interactions; molecular ecology and evolution; transgenic plants and insects. In addition to research papers, Environmental Entomology publishes Letters to the Editor, interpretive articles in a Forum section, and Book Reviews.
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