Tuesday, December 11, 2001 -
D0348

Life history of Chaetorellia succinea-laboratory and field studies in North America

Nada Tomic-Carruthers1, Justin P. Weber2, Mike Pitcarin3, and Raymond I. Carruthers2. (1) USDA APHIS PPQ, Center for Plant Health Science and Technology, Mission Plant Protection Center, 800 Buchanan Street, Albany, CA, (2) USDA ARS, Exotic and Invasive Weed Research Unit, 800 Buchanan Street, Albany, CA, (3) CDFA, Plant Health and Pest Prevention Services, 3288 Meadow View Road, Sacramento, CA

The Tephritid fly,Chaetorellia succinea, was first detected in California and Oregon in 1996 causing damage to capitula of yellow starthistle in the field. Its presence is a result of an accidental introduction but fortunately, C. succinea seems to be a beneficial addition to complex of agents for control of yellow starthistle and not a pest species. Since this insect was not extensively studied prior to its release into North America, a lack of basic information on its life history is a serious obstacle to understanding and predicting its population dynamics and impact on yellow starthistle under actual field conditions. In our poster we present results of laboratory and field studies on the biology and ecology of C. succinea in North America and its phenological synchrony with yellow starthistle.

Species 1: Diptera Tephritidae Chaetorellia succinea
Keywords: yellow starthistle

The ESA 2001 Annual Meeting - 2001: An Entomological Odyssey of ESA