Suitable Ratio of Synthetic Sex Pheromone for Attracting Diamondback Moth, <I> Plutella xylostella </I>L.

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Published: Aug 6, 2020
Keywords:
Diamondback moth Plutella xylostella synthetic sex pheromone

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Anusorn Pongmee
Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Jiraporn Kulsarin
Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Aphiwat Teerawutgulrag
Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand

Abstract

Sex pheromone components of female diamondback moth (Plutella xylostella L.) were identified using Gas chromatography (GC) and GC-mass spectrometry (GC-MS) technique as Z-11-hexadecenal (Z11-16 : Ald),  Z-11-hexadecenyl acetate (Z11-16 : OAc) and Z-11-hexadecen-1-ol (Z11-16 : OH). The three chemical components of the sex pheromone can also be synthesized from 11-bromoundecanoic acid in laboratory. The experiments aimed to determine the appropriate ratio of synthetic pheromone to attract male of diamondback moth in wind tunnel under laboratory condition. The ratios of binary blend (Z11-16 : Ald : Z11-16 : OAc) and tertiary blend (Z11-16 : Ald : Z11-16 : OAc : Z11-16 : OH) to attract male moth were compared in wind tunnel at 72 hrs. It was found that binary blend of synthetic pheromones at all ratio were not effective in attracting male moth while tertiary blend at the ratio of 50 : 50 : 1 at the amount of 100 mg could attract 41.50 male moths, similar to commercial lure that attracted 42.00 of those male moths. Therefore, the synthetic pheromone at the ratio of 50 : 50 : 1 was the suitable synthetic pheromone blended to attract diamondback moth and was important to apply for pheromone traps in controlling diamondback moth in the future.

Article Details

Issue
Vol. 29 No. 2 (2013): Journal of Agriculture (May-August)
Section
Research Articles

References

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