IDEAS home Printed from https://ideas.repec.org/a/ags/hilgar/381539.html
   My bibliography  Save this article

Flight habits of the alfalfa seed chalcid, Bruchophagus roddi Guss. (Hymenoptera: Eurytomidae)

Author

Listed:
  • Strong, Frank E.
  • Bacon, O. G.
  • Russell, J. R.

Abstract

The flight habits of the alfalfa seed chalcid, Bruchophagus roddi Guss., were studied using natural field populations and reared insects which were radioactively marked. A minimum temperature of 70°F and a minimum light intensity of 0.2 Langley was found necessary for sustained flight. In a favorable host area, the chalcids dispersed only a few hundred yards within a few days. The movement of chalcids in a breeze less than about 5 mph was both upwind and downwind. In stronger winds, movement was predominantly downwind. The data obtained suggest that when a host area dries or otherwise becomes a nonhost area, the chalcids fly upwards where they encounter the stronger winds and rapidly leave the area. Marked chalcids were recovered 4,100 feet downwind of a release point; others were observed to survive 16 days in the field.

Suggested Citation

  • Strong, Frank E. & Bacon, O. G. & Russell, J. R., 1963. "Flight habits of the alfalfa seed chalcid, Bruchophagus roddi Guss. (Hymenoptera: Eurytomidae)," Hilgardia, California Agricultural Experiment Station, vol. 35(1).
    • Handle: RePEc:ags:hilgar:381539
    as

    Download full text from publisher

    File URL: https://ageconsearch.umn.edu/record/381539/files/v35n01p001.pdf
    Download Restriction: no
    ---><---

    More about this item

    Keywords

    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ags:hilgar:381539. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: AgEcon Search (email available below). General contact details of provider: .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.