Toxicity of different insecticides against Franklinellia invasor (Thysanoptera: Thripidae), a mango pest in Central America

  • Ndonkeu Tita Walter Earth University, San José, Costa Rica
  • Royner Josué Ortiz Rojas Earth University, San José, Costa Rica
  • Iris Strzyzewski University of Florida, Department of Entomology and Nematology, North Florida Research and Education Center, Quincy, Florida, USA
  • Joe Funderburk University of Florida, Department of Entomology and Nematology, North Florida Research and Education Center, Quincy, Florida, USA
  • Xavier Martini University of Florida, Department of Entomology and Nematology, North Florida Research and Education Center, Quincy, Florida, USA

Abstract

Frankliniella invasor is an important pest of mango in Central America; however, information is limited concerning the activity of insecticides with different modes of action. Eight insecticides representing 5 different chemical classes were assayed for control of F. invasor in Costa Rica. The spinosyns, spinetoram, and spinosad were highly active, whereas malathion and α-cypermethrin were the least active. The neonicotinoids imidacloprid and thiamethoxam resulted in intermediate toxicity to this thrips pest.

 

Resumen

Frankliniella invasor es una plaga importante del cultivo de mango en Costa Rica. Sin embargo, hasta la fecha se han publicado muy pocos ensayos de toxicología en esta especie de trips. Se eligieron ocho insecticidas con diferentes modos de acción. Se realizaron dos ensayos toxicológicos consecutivos. Entre los insecticidas probados, las espinosinas (spinetoram y spinosad) fueron las más eficientes. El malatión, α-cipermetrina, fue el menos eficiente. Los neonicotinoides mostraron resultados diferentes con imidacloprid que no logró controlar la plaga F. invasor, y el tiametoxam dio un resultado toxicológico aceptable para esta especie.

Key Words: mango; spinosyns; neonicotinoids; Central America

View this article in BioOne

Published
2020-07-10
Section
Scientific Notes