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Delayed mating and reproduction in the autumn gum moth Mnesampela privata


Walker, PW and Allen, GR, Delayed mating and reproduction in the autumn gum moth Mnesampela privata, Agricultural and Forest Entomology, 13, (4) pp. 341-347. ISSN 1461-9555 (2011) [Refereed Article]

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DOI: doi:10.1111/j.1461-9563.2011.00524.x


1 The success of mating disruption using synthetic sex pheromones depends not only on preventing mating, but also on delaying mating in the target insect. Using the geometrid pest of Eucalyptus plantations, Mnesampela privata (GuenŽee), we determined the effect of delaying mating when imposed on males only, females only or on both sexes simultaneously, for 1, 3, 5 and 7 days. 2 Delayed mating had a significant negative impact on reproduction, with a 0.89-fold decrease in the likelihood of mating and a 0.67-fold decrease in the likelihood of that mating resulting in fertile eggs for every day that mating is delayed. A mating delay of 7 days reduced the mean number of viable eggs laid to 4–13% of that laid by moths paired immediately after emergence. 3 Male only imposed mating delays had a significantly lower effect on reducing the likelihood of pairs mating than when both sexes were delayed. A delay imposed on one sex only or on both sexes simultaneously, however, had a similar negative impact on the proportion of fertile matings as well as on the total number of fertile eggs laid. 4 Longevity of mated female and male M. privata was significantly different between mating delay treatments, with a significant decline in female longevity when they mated with older males. 5 The underlying mechanisms causing a decline in female reproductive output when a mating delay was imposed on males versus females are discussed in relation to the reproductive biology of M. privata and the potential of using mating disruption strategies to control populations in Eucalyptus plantations.

Item Details

Item Type:Refereed Article
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Forestry sciences
Research Field:Forest health and pathology
Objective Division:Environmental Management
Objective Group:Terrestrial systems and management
Objective Field:Control of pests, diseases and exotic species in terrestrial environments
UTAS Author:Walker, PW (Dr Paul Walker)
UTAS Author:Allen, GR (Associate Professor Geoff Allen)
ID Code:66945
Year Published:2011
Web of Science® Times Cited:11
Deposited By:Agricultural Science
Deposited On:2011-02-18
Last Modified:2017-11-08

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