Survey of Thysanoptera using colored sticky card traps in Florida, USA, olive groves

Authors

  • Eleanor F Phillips University of Florida, Entomology & Nematology Department, Gainesville, Florida 3261-0620, USA
  • Sandra A. Allan USDA, Center for Medical, Agricultural, and Veterinary Entomology, Gainesville, Florida 32608, USA
  • Taryn B. Griffith University of Florida, Entomology & Nematology Department, Gainesville, Florida 3261-0620, USA
  • Jennifer Lynn Gillett-Kaufman University of Florida, Entomology & Nematology Department, Gainesville, Florida 3261-0620, USA

Abstract

Olives are a potential emerging crop for the state of Florida, USA, and the pest arthropods in commercial groves in the state are under-studied. Thrips (order Thysanoptera) are an almost ubiquitous concern among specialty crop growers in Florida. Yellow and blue sticky card traps were used to survey the canopies of trees in 4 North Central Florida olive groves to determine thrips abundance and distribution over 2 growing seasons. Of the 16 species of thrips identified, most were Frankliniella spp., with Florida flower thrips, Frankliniella bispinosa (Morgan) (Thysanoptera: Thripidae), being the most abundant species for both yr. Yellow traps were more effective for most species of thrips, although several species were more abundant on blue traps. No consistent differences between yr existed. Although overall abundance of flower feeding thrips species coincided with flowering events in the olive orchards, there was insufficient flowering to make statistical correlations between the peak of thrips abundance and flowering events in the olive groves. The results of this study will be useful in informing future economic threshold analyses of Thysanoptera in Florida olive groves.

 

Resumen

Las aceitunas son un cultivo potencial emergente para el Estado de la Florida, EE. UU., y los artrópodos plagas en los bosques comerciales del estado están poco estudiados. Los trips (orden Thysanoptera) son una preocupación casi omnipresente entre los productores de cultivos especializados en la Florida. Se usaron trampas adhesivas amarillas y azules para examinar las copas de los árboles en 4 olivares del norte central de la Florida para determinar la abundancia y distribución de trips durante 2 temporadas de crecimiento. De las 16 especies de trips identificadas, la mayoría fueron Frankliniella spp., con el trips de flores de la Florida, Frankliniella bispinosa (Morgan) (Thysanoptera: Thripidae), siendo la especie más abundante para ambos años. Las trampas amarillas fueron más efectivas para la mayoría de las especies de trips, aunque varias especies fueron más abundantes en las trampas azules. No existieron diferencias consistentes entre los años. Aunque la abundancia general de especies de trips que se alimentan de las flores coincidió con los eventos de floración en los huertos de olivos, no hubo suficiente floración para hacer correlaciones estadísticas entre el pico de abundancia de trips y los eventos de floración en los olivares. Los resultados de este estudio serán útiles para informar futuros análisis de umbral económico de los Thysanoptera en los olivares de la Florida.

Key Words: thrips; flower pest; Frankliniella bispinosa; Homalodisca vitripennis; olives; Olea europaea

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Author Biography

Jennifer Lynn Gillett-Kaufman, University of Florida, Entomology & Nematology Department, Gainesville, Florida 3261-0620, USA

Extension Scientist, Entomology and Nematology Department, University of Florida, Gainesville, FL

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Published

2020-07-10

Issue

Vol. 103, No. 2 (June 2020)

Section

Research Papers

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