The effect of food source on survival and development of Lilioceris cheni (Coleoptera: Chrysomelidae), a biological control agent of air potato (Dioscoreales: Dioscoreaceae)

Authors

  • Koushal Rao Lincoln Park Academy, Fort Pierce, Florida 34950, USA
  • Veronica Manrique Biological Control Research and Containment Laboratory, Indian River Research and Education Center, University of Florida, Fort Pierce, Florida 34945, USA
  • William A. Overholt Biological Control Research and Containment Laboratory, Indian River Research and Education Center, University of Florida, Fort Pierce, Florida 34945, USA

Keywords:

weed biological control, insect diet, insect color

Abstract

This study demonstrated that early instars of Lilioceris cheni Gressitt and Kimoto (Coleoptera: Chrysomelidae) larvae survived on air potato (Dioscorea bulbifera L.; Dioscoreales: Dioscoreaceae) leaves, whereas older larvae successfully developed on leaves and bulbils. However, leaves provided a superior diet to bulbils for older larvae based on a shorter development time. Survival from 3rd instar to adult was not different on leaves and brown bulbils, but for unknown reasons, survival was very poor on tan bulbils.

 

Sumario

 

Este estudio demostró que los primeros estadios de larvas de Lilioceris cheni Gressitt y Kimoto (Coleoptera: Chrysomelidae) sobrevivieron en las hojas de papa trepadora (Dioscorea bulbifera L.; Dioscoreales: Dioscoreaceae) de aire, mientras que las larvas mayores desarrollaron con éxito en las hojas y bulbillos. Sin embargo, las hojas siempre proveyeron una dieta superior a los bulbillos para larvas de más edad en base a un tiempo de desarrollo más corto. La sobrevivencia del 3˚ instar hasta el adulto no fue diferente en las hojas y bulbillos de color café, pcoy ero por razones desconocidas, la sobrevivencia fue muy pobre en los bulbillos bronceados

 

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Author Biographies

Koushal Rao, Lincoln Park Academy, Fort Pierce, Florida 34950, USA

High School Student

Veronica Manrique, Biological Control Research and Containment Laboratory, Indian River Research and Education Center, University of Florida, Fort Pierce, Florida 34945, USA

Biological Scientist, Department of Entomology and Nematology

William A. Overholt, Biological Control Research and Containment Laboratory, Indian River Research and Education Center, University of Florida, Fort Pierce, Florida 34945, USA

Professor, Department of Entomology and Nematology

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Published

2015-12-30

Issue

Section

Scientific Notes