E. Mottus et al., OPTIMIZATION OF PHEROMONE DISPENSERS FOR DIAMONDBACK MOTH PLUTELLA-XYLOSTELLA, Journal of chemical ecology, 23(9), 1997, pp. 2145-2159
We have investigated the effects of pheromone dispenser design, pherom
one release rate, and the products of Z11-16:Ald decomposition on the
attractiveness of the pheromone blend (Z)-11-hexadecenyl acetate, (Z)-
11-hexadecenal, and (Z)-11-hexadecen-1-ol) in traps to Plutella xylost
ella males. Rubber minidispensers (K-50) were shown to have an active
exposure rime of at least two months and in delta traps to be capable
of monitoring a population of P. xylostella throughout the summer in E
stonia. Pheromone release rates between 8 and 17 ng/hr are recommended
for maximum trap catches. The attractive blend contained 15-35 % of Z
11-16:Ac. Decomposition products of Z11-16:Ald inhibited the activity
of the pheromone blend when more than 50% of the aldehyde had decompos
ed.