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Field trapping of Metamasius hemipterus with synthetic aggregation pheromone
Author(s) -
RamirezLucas Pamela,
Rochat Didier,
Zagatti Pierre
Publication year - 1996
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/j.1570-7458.1996.tb00959.x
Subject(s) - curculionidae , pheromone , sex pheromone , attraction , biology , trapping , pheromone trap , zoology , botany , ecology , linguistics , philosophy
Abstract The five synthetic pheromone components of the West Indian sugarcane borer (WISB), Metamasius hemipterus (L.) (Coleoptera, Curculionidae) were tested in the field. The combination of sugarcane (SC) and the major pheromone compound, 4‐methyl‐5‐nonanol (1) was attractive. However, the addition of 2‐methyl‐4‐heptanol (2) or 2‐methyl‐4‐octanol (3) was required to reach high catch levels while 5‐nonanol (4) or 3‐hydroxy‐4‐methyl‐5‐nonanone (5) did not enhance WISB attraction. The redundancy phenomenon, here reported for the first time in rhynchophorinous species, was observed between compounds 2 and 3. SC + 1 + 3 was more attractive than living male baits, however, the sex‐ratio of the catches was equivalent between both treatments. The sex‐ratio of catches was affected by the qualitative composition of the pheromone formulation. Compound 3 had a sexual role, attracting more females while 5 seemed to play an aggregation role, luring both sexes in the same proportion.