ESTABLISHMENT OF UROPHORA-SIRUNASEVA (HERING) (DIPTERA, TEPHRITIDAE) FOR BIOLOGICAL-CONTROL OF YELLOW STARTHISTLE IN THE WESTERN UNITED-STATES

Authors
TURNER CE SOBHIAN R JOLEY DB COOMBS EM PIPER GL
Citation
Ce. Turner et al., ESTABLISHMENT OF UROPHORA-SIRUNASEVA (HERING) (DIPTERA, TEPHRITIDAE) FOR BIOLOGICAL-CONTROL OF YELLOW STARTHISTLE IN THE WESTERN UNITED-STATES, The Pan-Pacific entomologist, 70(3), 1994, pp. 206-211
Citations number
NO
Categorie Soggetti
Entomology
Journal title
The Pan-Pacific entomologist → ACNP
ISSN journal
00310603
Volume
70
Issue
3
Year of publication
1994
Pages
206 - 211
Database
ISI
SICI code
0031-0603(1994)70:3<206:EOU((T>2.0.ZU;2-T
Abstract
Urophora sirunaseva (Hering) (Diptera: Tephritidae) is a capitulum-gal ling natural enemy of yellow starthistle, Centaurea solstitialis (Aste raceae). The fly was first introduced into the United States for biolo gical control of yellow starthistle in the mid-1980s. As of 1992, fiel d establishment of U. sirunaseva is known from California (five sites) , Oregon (six sites), and Washington (one site). Field sample data for four populations of U. sirunaseva from California and Oregon in 1992 yielded a range of galled host capitula from 22.1 to 44.0%, and a rang e of mean galls per galled capitulum from 1.8 to 2.1.