Postharvest Population Reservoirs of Coffee Berry Borer (Coleoptera: Curculionidae) on Hawai'i Island

Journal of Economic Entomology
Melissa A JohnsonNicholas C Manoukis

Abstract

Coffee berry borer, Hypothenemus hampei Ferrari (Coleoptera: Curculionidae: Scolytinae), is the most damaging insect pest of coffee worldwide. Old coffee berries (raisins) are widely acknowledged as coffee berry borer reservoirs, yet few studies have attempted to quantify coffee berry borer populations in raisins remaining on farms postharvest. We collected ground and tree raisins at six coffee farms on Hawai'i Island to assess raisin density, infestation, coffee berry borer abundance, and adult mortality in three areas of each farm: trees, driplines (ground below the tree foliage), and center aisles (ground between tree rows). We also assessed infestation of the new season's crop by conducting whole-tree counts of infested green berries. Mean raisin density was significantly higher in the dripline compared to the center aisle and trees (131 vs 17 raisins per m2 and 12 raisins per tree, respectively). Raisin infestation was significantly higher in samples from trees (70%) relative to those from the dripline (22%) and center aisle (18%). Tree raisins had significantly higher coffee berry borer abundance compared to both areas of the ground (20 vs 3-5 coffee berry borer per raisin). Adult mortality was significantly higher on the...Continue Reading

References

Jan 10, 2012·Journal of Insect Science·Elsie BurbanoFernando E Vega
Aug 15, 2012·Trends in Ecology & Evolution·Daniel SimberloffMontserrat Vilà
Nov 5, 2016·Archives of Biochemistry and Biophysics·Yarrow MadronaPaul R Ortiz de Montellano
Mar 30, 2018·American Journal of Speech-language Pathology·Charles R GreenwoodJudith J Carta

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