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Indian Journal of Entomology
Year : 2019, Volume : 81, Issue : 2
First page : ( 306) Last page : ( 308)
Print ISSN : 0367-8288. Online ISSN : 0974-8172.
Article DOI : 10.5958/0974-8172.2019.00059.2

Olfactory responses of banana pseudostem weevil Odoiporus longicollis Olivier to pheromone and host plant volatiles

Palanichamy S.*, Padmanaban B., Vaganan M. Mayil, Uma S.

ICAR-National Research Centre for Banana, Thayanur Post, Thogamalai Road, Tiruchirapalli, 620102

*Corresponding author Email: ppoojabharathi@gmail.com

Online published on 23 July, 2019.

Abstract

Banana pseudostem weevil Odoiporus longicollis Olivier (Coleoptera: Curculionidae) is an important pest of banana. In this study, its male produced aggregation pheromone was identified as 2-methy-4-heptanol (2M4H) which attracts both male and female. In order to achieve maximum attraction for field trapping, an aggregation pheromone (2M4H), host plant extract (HPE) and combination of 2M4H + HPE were evaluated under laboratory conditions with wind tunnel bioassay. Maximum weevil attraction was observed in the descending order of: 2M4H + HPE > 2M4H > HPE, suggesting a better synergistic effect of host plant extract on pheromone.

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Keywords

Odoiporus longicollis, aggregation pheromone, 2-methy-4-heptanol, host plant extract, olfactory, bioassay, wind tunnel, synergism.

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