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Development of a semiochemical‐based trapping method for the New Guinea sugarcane weevil, Rhabdoscelus obscurus in Guam
Author(s) -
Reddy G. V. P.,
Cruz Z. T.,
Bamba J.,
Muniappan R.
Publication year - 2005
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/j.1439-0418.2005.00935.x
Subject(s) - semiochemical , weevil , biology , curculionidae , integrated pest management , trapping , population , pheromone , pest analysis , pheromone trap , toxicology , botany , horticulture , agronomy , ecology , demography , sociology
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.