Chemical Ecology / Semiochemicals

Since olfaction and gustation typically mediate mate and host finding and selection in insects, the focus of this program is that group of natural chemicals, termed semiochemicals, which include sex pheromones, host odors, and the defensive chemistry of insects and plants. As an interdisciplinary research effort among chemistry, behavior and ecology, we hope to establish the evolutionary basis for these chemical communication systems and to determine their potential in pest-management schemes. In the current move to minimize the environmental and human health impact of pest control, chemical ecology will play a prominent role. Current projects include the identification and behavioral characterization of semiochemicals, the use of pheromones and other attractants for improved monitoring of pest insects, and the development of these chemicals for direct control through behavioral disruption and plant resistance. Such strategies typically have the benefits of low or no toxicity, and high selectivity, allowing control of pest populations while protecting beneficial and nontarget organisms.