Development of a semiochemical-based trapping method for the New Guinea sugarcane weevil, Rhabdoscelus obscurus in Guam

• Published in: Journal of applied entomology (1986) Vol. 129; no. 2; pp. 65 - 69
• Main Authors: Reddy, G.V.P, Cruz, Z.T, Bamba, J, Muniappan, R
• Format: Journal Article
• Language: English
• Published: Berlin, Germany Blackwell Verlag GmbH 01.03.2005; Blackwell
• Subjects: (E2)-6-methyl-2-hepten-4-ol (rhynchophoral); 2-methyl-4-heptanol; aggregation pheromones; baits; Biological and medical sciences; Coleoptera; Control; Curculionidae; ethyl acetate; Fundamental and applied biological sciences. Psychology; insect control; insect pheromones; Integrated pest control; permethrin; pheromone traps; Phytopathology. Animal pests. Plant and forest protection; Protozoa. Invertebrates; Rhabdoscelus obscurus; rhynchophoral; Saccharum officinarum; semiochemicals; sugarcane; trap; trapping; Guam; Micronesia; Mariana Islands; Oceania; Saccharum; 2-methyl-4-heptanol; Monocotyledones; Coleoptera; Insecta; Tropical zone; ethyl acetate; Acetate; Sugar plant; sugarcane; Rhabdoscelus obscurus; (E2)-6-methyl-2-hepten-4-ol (rhynchophoral); Pest; Trapping control; Gramineae; Arthropoda; Angiospermae; Spermatophyta; Sugar cane; Curculionidae; Aggregation pheromone; trap; Invertebrata; Semiochemicals
• ISSN: 0931-2048; 1439-0418
• DOI: 10.1111/j.1439-0418.2005.00935.x

:  Aggregation pheromone of the Australian population of New Guinea sugarcane weevil, Rhabdoscelus obscurus (Boisduval), in conjunction with other semiochemicals, was used to develop an efficient trapping method for the weevil population in Guam. In a field experiment at Yigo, plastic bucket traps baited with the lure of the Australian R. obscurus population in combination with ethyl acetate and cut sugarcane captured significantly more weevils than traps baited with pheromone + ethyl acetate, pheromone + sugarcane or individual lure components alone. Traps baited with various semiochemical‐based lures and treated with insecticide captured significantly greater numbers of weevils than those not treated with insecticide. Traps baited with cut sugarcane caught significantly more weevils than those without sugarcane. Semiochemical‐based trapping in weevil management has potential either in mass trapping or as part of an integrated pest management (IPM) programme. Based on the present findings, a future line of work for the control of this weevil is proposed.