The rate and periodicity of the emission of the sex pheromone [(a-1 1-hexadecenal] from the pheromone glands of individual female artichoke plume moths, Platyptzlia carduzdactyla, were quantified The mean rate of volatilization of (2)-11-hexadecenal from the glands of the moths peaked at 1 52 Â 0 41 (SE) nglmin during the scotophase, and was at low levels during the entire photophase This perio...

Hand-applied dispensers are successfully used in mating disruption programs, but cost of labor to apply these dispensers limits their adoption. Creating hand-applied dispensers that release larger amounts of pheromone and that can be applied at lower densities per hectare could reduce the cost of mating disruption and increase its use. The effect of reducing the number of point sources per hect...

J Agric Entomol 15(4): 377-386 (October 1998) ABSTRACT We conducted a study to optimize the deployment of our controlled pheromone release system called metered semiochemical timed release system (MSTRSTM) and to measure its impact on male blackheaded fireworm, Rhopobota naevana (Hubner) (Lepidoptera: Tortricidae) The deployment pattern and pheromone emission rate of the M S T R S devices were ...

Calling female moths attract their mates late at night with intermittent release of a species-specific sex-pheromone blend. Mean frequency of pheromone filaments encodes distance to the calling female. In their zig-zagging upwind search male moths encounter turbulent pheromone blend filaments at highly variable concentrations and frequencies. The male moth antennae are delicately designed to de...

During the period when they are producing sperm, male sea lampreys (Petromyzon marinus L.) release a sex pheromone 7alpha, 12alpha, 24-trihydroxy-5alpha-cholan-3-one-24-sulfate (3 keto-petromyzonol sulfate, 3ketoPZS) that induces search and preference behaviors in ovulating females. In this study, we conducted a series of experiments to demonstrate that release of this pheromone into water take...

Current control methodologies have not prevented the spread of visceral leishmaniasis (VL) across Brazil. Here, we describe the development of a new tool for controlling the sand fly vector of the disease: a long-lasting lure, which releases a synthetic male sex pheromone, attractive to both sexes of Lutzomyia longipalpis. This device could be used to improve the effectiveness of residual insec...