Entomological News (2018) 127, 293-302

Jia Li and Long Zhang (2018)
Two sex-specific volatile compounds have sex-specific repulsion effects on adult locusts Locusta migratoria manilensis (Meyen) (Orthoptera: Acrididae)
Entomological News 127 (4), 293-302
Abstract: Gregarious locusts use volatile semiochemicals released from their bodies and feces to regulate their biological characteristics, and many of these compounds are sex-specific. The locust Locusta migratoria manilensis (Meyen) (Orthoptera: Acrididae) is a frequent plague species in China, but very little is known of its olfactory behavioral ecology. In our previous study, one malespecific compound (2-heptanone) was identified from body volatiles of gregarious adult L. m. manilensis. In the present study, six compounds were identified from fecal volatiles of gregarious adult L. m. manilensis using a gas chromatograph coupled to a mass spectrometer: 3-Methyl-1-butanol, cyclo hexanol, 2,5-dimethylpyrazine, 6-methyl-5-hepten-2-one and 2,6,6-trimethyl-2-cyclohexene-1,4-dione were present in the fecal volatiles of both sexes, and 2,2,6-trimethylcyclohexanone only in that of females. Olfactometric bioassays indicated that the male-specific 2-heptanone repelled the adult males, but had no effect on females. On the other hand, female-specific 2,2,6-trimethylcyclohexanone was found to repel the adult females, but had no effect on males. The two sex-specific compounds may help to improve reproductive efficiency of the locusts.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Long Zhang

Research topic(s) for pests/diseases/weeds:
pheromones/attractants/traps
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Locusta migratoria