Land Resources and Environmental Sciences Seminar Series
- Monday, March 30, 2015 from 1:10pm to 2:00pm
- Leon Johnson Hall - view map
Alexander Gaffke, LRES Graduate Student, will present "Adding precision to biological control of weeds: The next step" as part of the LRES Seminar Series.
The leaf beetle, Diorhabda carinulata, (Desbrochers) is an introduced classical biological control agent for saltcedars (Tamarix spp.). Monitoring for low density populations of D. carinulata has been problematic, and population growth has been slow in many areas. D. carinulata is also interacting with an endangered species that has brought it into conflict with many management agencies. Manipulation of D. carinulata spatial distribution with semiochemicals could solve these problems.
The results of field trials indicate saltcedars treated with semiochemicals had higher densities of D. carinulata adults and larvae and showed more damage than controls. These preliminary results indicate that semiochemicals could be useful in detecting, retaining, and directing populations of D. carinulata. Future work will investigate the potential for semiochemicals to resolve the conflict with the endangered species.
- Department of Land Resources and Environmental Sciences