Chinese Journal of Entomology (1992) 12, 277-284

N.S. Talekar, W.J. Hu, F.C. Su, W.B. Yeh and Y.H. Lyou (1992)
Mating and sex pheromine related studies with sweetpotato vine borer (Lepidoptera:Pyralidae)
Chinese Journal of Entomology 12 (4), 277-284
Abstract: Laboratory and field studies were conducted to study the mating and presence of typical lepidopteran sex pheromine in sweetpotato vine borer (SPVB), Omphisa anastomosalis (Guenee), a pest of sweet potato in Asia and the Pacific. SPVB adults emerged from the pupae mainly between 7 PM and midnight. Mating peaked between 1:30 AM and 2:30 AM. One- to 5-day old virgin females attracted males but 3- to 4-day olds attracted more males than others. One- to 5-day old males were receptive to mating. Traps baited with virgin females attracted males and within a range of 2 to 6, the more the females per trap, the more males attracted. Traps baited with two virgin females attracted 25% of the intentionally released males form up to 20 m from the trap; fewer insects were attracted from 30 and 40 m. Sex pheromones of seven other pyralids were not active against SPVB. Preoviposition period lasted 30.3±10.4 hours and during the oviposition period of 4 to 8 days, the insect, on the average, laid 211±82 eggs.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Wen-Bin Yeh

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Omphisa anastomosalis		Taiwan