Cargando…

Temperature-Mediated Variations in Behavior and Mortality Caused by Non-Repellent Insecticides in Subterranean Termites (Blattodea: Rhinotermitidae)

Behavioral symptoms and mortality associated with intoxication with insecticides fipronil and indoxacarb were determined in field-collected eastern subterranean termites, Reticulitermes flavipes (Kollar), and Formosan subterranean termites, Coptotermes formosanus Shiraki. Behaviors and mortality wer...

Descripción completa

Detalles Bibliográficos
Autores principales: Quarcoo, Franklin Y., Hu, Xing Ping, Appel, Arthur G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6410312/
https://www.ncbi.nlm.nih.gov/pubmed/30704110
http://dx.doi.org/10.3390/insects10020037
_version_ 1783402221656866816
author Quarcoo, Franklin Y.
Hu, Xing Ping
Appel, Arthur G.
author_facet Quarcoo, Franklin Y.
Hu, Xing Ping
Appel, Arthur G.
author_sort Quarcoo, Franklin Y.
collection PubMed
description Behavioral symptoms and mortality associated with intoxication with insecticides fipronil and indoxacarb were determined in field-collected eastern subterranean termites, Reticulitermes flavipes (Kollar), and Formosan subterranean termites, Coptotermes formosanus Shiraki. Behaviors and mortality were evaluated at three temperatures (16, 22, and 28 °C) and three concentrations of fipronil (0.5, 1, and 5 ppm) and indoxacarb (50, 75, and 100 ppm). LT(50) (median lethal time to kill 50% of the termites) values declined with increasing concentrations and temperatures for both fipronil-exposed eastern and Formosan subterranean termites, whereas these values were not always the highest at 16 °C for indoxacarb-treated termites. The greatest change (reduction) in LT(50) values occurred for both species between 16 and 22 °C at the lowest concentration of each insecticide. Intoxication and moribundity were the most frequently observed behaviors for fipronil-exposed termites, whereas intoxication, ataxia, and moribundity were observed for most concentration and temperature combinations for indoxacarb-exposed termites. The inherent toxicity of fipronil was higher than that of indoxacarb. The higher presence and duration of intoxication behaviors may positively affect the performance of indoxacarb against subterranean termite colonies.
format Online
Article
Text
id pubmed-6410312
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-64103122019-03-29 Temperature-Mediated Variations in Behavior and Mortality Caused by Non-Repellent Insecticides in Subterranean Termites (Blattodea: Rhinotermitidae) Quarcoo, Franklin Y. Hu, Xing Ping Appel, Arthur G. Insects Article Behavioral symptoms and mortality associated with intoxication with insecticides fipronil and indoxacarb were determined in field-collected eastern subterranean termites, Reticulitermes flavipes (Kollar), and Formosan subterranean termites, Coptotermes formosanus Shiraki. Behaviors and mortality were evaluated at three temperatures (16, 22, and 28 °C) and three concentrations of fipronil (0.5, 1, and 5 ppm) and indoxacarb (50, 75, and 100 ppm). LT(50) (median lethal time to kill 50% of the termites) values declined with increasing concentrations and temperatures for both fipronil-exposed eastern and Formosan subterranean termites, whereas these values were not always the highest at 16 °C for indoxacarb-treated termites. The greatest change (reduction) in LT(50) values occurred for both species between 16 and 22 °C at the lowest concentration of each insecticide. Intoxication and moribundity were the most frequently observed behaviors for fipronil-exposed termites, whereas intoxication, ataxia, and moribundity were observed for most concentration and temperature combinations for indoxacarb-exposed termites. The inherent toxicity of fipronil was higher than that of indoxacarb. The higher presence and duration of intoxication behaviors may positively affect the performance of indoxacarb against subterranean termite colonies. MDPI 2019-01-30 /pmc/articles/PMC6410312/ /pubmed/30704110 http://dx.doi.org/10.3390/insects10020037 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Quarcoo, Franklin Y.
Hu, Xing Ping
Appel, Arthur G.
Temperature-Mediated Variations in Behavior and Mortality Caused by Non-Repellent Insecticides in Subterranean Termites (Blattodea: Rhinotermitidae)
title Temperature-Mediated Variations in Behavior and Mortality Caused by Non-Repellent Insecticides in Subterranean Termites (Blattodea: Rhinotermitidae)
title_full Temperature-Mediated Variations in Behavior and Mortality Caused by Non-Repellent Insecticides in Subterranean Termites (Blattodea: Rhinotermitidae)
title_fullStr Temperature-Mediated Variations in Behavior and Mortality Caused by Non-Repellent Insecticides in Subterranean Termites (Blattodea: Rhinotermitidae)
title_full_unstemmed Temperature-Mediated Variations in Behavior and Mortality Caused by Non-Repellent Insecticides in Subterranean Termites (Blattodea: Rhinotermitidae)
title_short Temperature-Mediated Variations in Behavior and Mortality Caused by Non-Repellent Insecticides in Subterranean Termites (Blattodea: Rhinotermitidae)
title_sort temperature-mediated variations in behavior and mortality caused by non-repellent insecticides in subterranean termites (blattodea: rhinotermitidae)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6410312/
https://www.ncbi.nlm.nih.gov/pubmed/30704110
http://dx.doi.org/10.3390/insects10020037
work_keys_str_mv AT quarcoofrankliny temperaturemediatedvariationsinbehaviorandmortalitycausedbynonrepellentinsecticidesinsubterraneantermitesblattodearhinotermitidae
AT huxingping temperaturemediatedvariationsinbehaviorandmortalitycausedbynonrepellentinsecticidesinsubterraneantermitesblattodearhinotermitidae
AT appelarthurg temperaturemediatedvariationsinbehaviorandmortalitycausedbynonrepellentinsecticidesinsubterraneantermitesblattodearhinotermitidae