pheromones


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pheromones,

any of a variety of substances, secreted by many animal species, that alter the behavior of individuals of the same species. Sex attractant pheromones, secreted by a male or female to attract the opposite sex, are widespread among insects. The pheromones produced by males include a substance produced by cockroaches that attracts females and orients them in the correct mating positions and a substance elaborated by the desert locust that accelerates sexual maturation in adults of both sexes. Male-attracting pheromones have been discovered in the females of many species of beetles, bees, and moths. The polyphemus moth will not mate unless red oak leaves are present; it has been found that the leaves give off a volatile aldehyde that stimulates the female to release a male-attracting pheromone. Attempts are being made to use pheromones in insect control, e.g., as bait to attract males to field traps or, in very high concentrations, to disorient insects and prevent mating.
References in periodicals archive ?
Using a T-maze olfactometer, we tested possibility of presence of pheromones in the female body.
Khrimian and Weber determined that just two forms make up the harlequin bug's pheromone and that having other stereoisomers in the mix does not lower the pheromone's attractiveness as a lure-an important point to potential manufacturers.
Some manufactured fish scents or attractants specifically employ fear pheromones from prey fish to trigger feeding instincts in predators.
This year, North Willamette Valley hazelnut growers also are using pheromones.
Thus, these results indicate that adjustments are needed to maximize the ability to capture the field with the use of these polymers, as well as further investigation of other polymers capable of use in the manufacture of nanofibers used as dispersing pheromones.
It's the first study to specifically test whether artificial night lighting disrupts moth sex pheromone production, says network ecologist Callum Macgregor of the University of Hull in England.
Sex pheromones are expected to witness the fastest growth at a CAGR of over 5.0% from 2014 to 2020.
Summary of the stereochemistry-bioactivity relationships among pheromones
Jiang et al., "Progress on sex pheromones synthesis of Asian corn borer: Ostrinia furnacalis (Guenee)," Agricultural Science Technology, vol.