Degree-day requirements for eight economically important grasshoppers (Orthoptera: Acrididae) in Nebraska using field data.

نویسندگان

  • Mathew L Brust
  • W Wyatt Hoback
  • Robert J Wright
چکیده

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.

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عنوان ژورنال:
  • Environmental entomology

دوره 38 5  شماره 

صفحات  -

تاریخ انتشار 2009