Ciclo biológico, comportamiento y censo del picudo del camu camu, Conotrachelus dubiae O'Brien 1995 (Coleoptera: Curculionidae) en Pucallpa, Perú

Translated title of the contribution: Biological cycle, behavior and census of camu camu weevil, Conotrachelus dubiae O'Brien 1995 (Coleoptera: Curculionidae), in Pucallpa, Peru

Diana Perez, José Iannacone

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Camu camu weevil Conotrachelus dubiae O'Brien, 1995 is a one of the main pests of camu camu (Myrciaria dubia H.B.K. Mc Vaugh) in Peruvian Amazonia. The aim of this study was to determine the biological cycle of this insect under laboratory conditions, to describe its behavior and population numbers under field conditions in Pucallpa, Ucayali, Peru. The percentage of hatching was 87%; the egg incubation period was 5.5±0.9 (4 to 7) days; the length of the larval stage inside the fruit was 22.2±1.9 (20 to 25) days, and the length larval stage (pre-pupa) underground was 54.4±5.5 (46 to 67) days. The length of pupal period was 11.8±0.9 (9 to 13) days, and the longevity of adults was 51.8±18.9 (9 to 75) days. Adults feed on fruits of different diameters and state of ripeness. Weevils also feed on buds, fresh branches and flowers. Adults of C. dubiae were only found in the rhizome, not in dry fruits or on the stem base.. The highest feeding and reproductive activity of adults was between 18:30 to 22:00 h. Adults were observed during the whole year, with the highest frequency between January and March in low seasonally flooded soils and between October to December in upland unflooded soils, coinciding with flowering and fruiting plant phenology.

Translated title of the contributionBiological cycle, behavior and census of camu camu weevil, Conotrachelus dubiae O'Brien 1995 (Coleoptera: Curculionidae), in Pucallpa, Peru
Original languagePortuguese
Pages (from-to)145-151
Number of pages7
JournalActa Amazonica
Volume38
Issue number1
DOIs
StatePublished - 2008

Keywords

  • Camu camu
  • Coleoptera
  • Conotrachelus
  • Myrciaria dubia
  • Pest

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