Year : 2023, Volume : 85, Issue : 3
First page : ( 776) Last page : ( 779)
Print ISSN : 0367-8288. Online ISSN : 0974-8172. Published online : 2023  18.
Article DOI : 10.55446/IJE.2021.363

Field Evaluation of Red Palm Weevil Rhynchophorus ferrugineus Olivier Pheromone Lures

Shelke Rajan

Don Bosco College of Agriculture, Sulcorna, Quepem403705, Goa, India

Email: rajanshelke6691@gmail.com

Online Published on 18 October, 2023.

Abstract

The red palm weevil Rhynchophorus ferrugineus Olivier (Coleoptera: Curculionidae) is a key pest of coconut. The efficiency of pheromone lures sourced from three countries along with natural (sugarcane) and synthetic (ethyl acetate) co-attractants, was tested in the infested coconut plantation. The results revealed that synergists and co-attractants are essential to sustain trapping efficiency. The best weevil captures were obtained when the pheromone trap had both the natural food bait (sugarcane) and the synthetic co-attractant (ethyl acetate). Pheromone traps with only ethyl acetate as a co-attractant led to lower captures as compared to pheromone traps with only the food bait (sugarcane). In general, the captures were female dominant with an overall male: female ratio of 1:1.35.

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Keywords

Rhynchophorus ferrugineus, Ferrugineol, Co-attractants, Pheromone traps, Coconut palm, Sugarcane, Ethyl acetate, Synergist, Trap captures, Male female ratio.

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