Location: Exotic and Invasive Weeds Research
Project Number: 5325-22000-026-01-R
Project Type: Reimbursable
Start Date: Jun 1, 2009
End Date: May 31, 2012
Evaluate efficacy, applicability and utility of Hydrellia spp as a biological control agent for management of Egeria densa.
Efficacy and host specificity will be determined using standard, accepted methods for assessing feeding (with and without alternative host plants) and reproductive behavior both in the country of origin (Argentina) and under certified quarantine glasshouse and growth chamber conditions at Albany, CA. Range of water depths of feeding impacts will be determined using field sampling and multi-depth culture systems in Argentina. Developmental timing and temperature required for growth, reproduction and dispersal will be assessed to compare with conditions in proposed release site (Sacramento-San Joaquin Delta). Documents Reimbursable with California Department of Boating & Waterways. Log 39270.