Location: Commodity Protection and Quality
2013 Annual Report
1)compare damage prediction between traps for males, females, and eggs; and.
2)characterize a newly-released artificial pheromone lure. In the first experiment, counts were compared between pheromone traps for males (using unmated females as a pheromone source), eggs captured in traps with ovipositional attractants, and females capture in traps using the same ovipositional attractants as for eggs. The number of females captured correlated significantly with the number of males captured but not the number of eggs captured. However, trapping for males had practical disadvantages and, since a synthetic pheromone lure for navel orangeworm became available during this time, subsequent work examined practical use of this lure. An experiment comparing the number of males captured between lures and trap types found similar number of males captured in wing traps baited with either unmated females or synthetic pheromone lures, but significantly fewer males captured in either bucket traps or delta traps baited with the synthetic lure. A third experiment is currently underway to examine the impact of mass trapping of males on the number of males captured in traps baited with unmated females.