Five sizes of red spheres (4, 6, 8, 10, and 12 cm diameter) and 2 orientations of yellow rectangles (vertical and V) were evaluated as unbaited sticky-coated traps for western cherry fruit flies, Rhagoletis indifferens Curran, in unmanaged cherry trees in Washington and Oregon. Red spheres that were 10 cm in diameter attracted more flies than red spheres that were 8 or 12 cm in diameter and significantly more flies than 4- or 6-cm spheres and yellow rectangles of either orientation. In a 2nd test, red spheres (10 cm diameter) baited with ammonium carbonate alone or ammonium carbonate plus putrescine attracted significantly more R. indifferens than similar spheres baited with ammonium acetate alone, putrescine alone, 3-methyl-1-butanol alone, or combinations of these substances. In a 3rd test, vertical yellow rectangles baited with ammonium carbonate alone attracted numerically more R. indifferens than any of the aforementioned substances alone or in combination. We discuss the potential value of 10-cm red spheres baited with ammonium carbonate for monitoring and direct control of R. indifferens.
How to translate text using browser tools
1 April 2000
Attraction of Adult Rhagoletis indifferens (Diptera: Tephritidae) to Unbaited and Odor-baited Red Spheres and Yellow Rectangles
Daniel F. Mayer,
Lynn E. Long,
Timothy J. Smith,
Jeffery Olsen,
Helmut Riedl,
Robert R. Heath,
Tracy C. Leskey,
Ronald J. Prokopy
ACCESS THE FULL ARTICLE
It is not available for individual sale.
This article is only available to subscribers.
It is not available for individual sale.
It is not available for individual sale.
Journal of Economic Entomology
Vol. 93 • No. 2
April 2000
Vol. 93 • No. 2
April 2000
monitoring
odor traps
Rhagoletis indifferens
visual traps