Location: European Biological Control Laboratory
Project Number: 0212-22000-031-006-S
Project Type: Non-Assistance Cooperative Agreement
Start Date: Jul 29, 2024
End Date: Jul 28, 2025
Objective:
1) Discover prospective biological control agents of invasive weeds and arthropod pests originating from Europe, Asia and Africa, and 2) Conduct experiments to evaluate the host plant specificity and potential efficacy of the more promising species. Weed targets may include medusahead, yellow starthistle, Russian thistle, Scotch thistle, dyer's woad, Russian olive, rush skeletonweed, and giant reed as well as other targets that may be selected.
Approach:
Explorations will be conducted at different seasons to regions where the target plants are known to occur to collect arthropods and pathogens likely to be host-specific. Specimens will be identified by qualified taxonomists, and phylogenetic analysis of DNA will be done when appropriate. Prospective agents will be tested in choice or no-choice experiments to determine if they feed, oviposit, or develop on representative nontarget plants that are likely to be at risk of attack. Further tests under laboratory or field conditions will be conducted when appropriate. Populations of promising agents will be sent to quarantine laboratories in the U.S. to conduct further tests on the most promising agents.
