Residual efficacy of spinosad-treated surfaces on Rhyzopertha dominica and Tribolium castaneum adults

Rhyzopertha dominica and Tribolium castaneum cause massive losses in stored food. These insects are effectively controlled by synthetic insecticides and fumigants but they accompany many demerits on biotic and abiotic environment. Spinosad is a bacterial formulation and a reduced-risk insecticide wh...

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Main Authors: Wijayaratne, Leanage Kanaka Wolly, Dissanayaka, Dissanayaka Mudiyanselage Saman Kumara, Sammani, Abeysinghe Mudiyanselage Prabodha, Rajapakse, Rohan Harshalal Sarathchandra
Format: Article
Language:deu
Published: Julius Kühn-Institut 2018-11-01
Series:Julius-Kühn-Archiv
Subjects:
Online Access:https://www.openagrar.de/receive/openagrar_mods_00078601
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author Wijayaratne, Leanage Kanaka Wolly
Dissanayaka, Dissanayaka Mudiyanselage Saman Kumara
Sammani, Abeysinghe Mudiyanselage Prabodha
Rajapakse, Rohan Harshalal Sarathchandra
author_facet Wijayaratne, Leanage Kanaka Wolly
Dissanayaka, Dissanayaka Mudiyanselage Saman Kumara
Sammani, Abeysinghe Mudiyanselage Prabodha
Rajapakse, Rohan Harshalal Sarathchandra
author_sort Wijayaratne, Leanage Kanaka Wolly
collection DOAJ
description Rhyzopertha dominica and Tribolium castaneum cause massive losses in stored food. These insects are effectively controlled by synthetic insecticides and fumigants but they accompany many demerits on biotic and abiotic environment. Spinosad is a bacterial formulation and a reduced-risk insecticide which is registered for stored grain protection in many countries. Despite many avenues of research on spinosad, its residual efficacy on certain insect species remains undiscovered. The objective of this research was to evaluate the residual efficacy of spinosad-treated surfaces on the survival of R. dominica and T. castaneum adults. The label rate of spinosad (25 ppm) was sprayed on polypropylene, jute, polythene, metal and filter paper. One-month-old twenty adults of R. dominica or T. castaneum were introduced on to the surfaces treated with spinosad and maintained at ambient environmental conditions. The mortality was counted at 2 and 6 days following introduction of adults. The mortality differed with the surface, insect species and duration of exposure. The current study highlights the possibility of controlling R. dominica or T. castaneum by spinosad sprayed on different surfaces.
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spelling doaj.art-8368dd2b896545728039c4b177e8c8742023-12-13T06:05:37ZdeuJulius Kühn-InstitutJulius-Kühn-Archiv1868-98922199-921X2018-11-01463275175210.5073/jka.2018.463.164Residual efficacy of spinosad-treated surfaces on Rhyzopertha dominica and Tribolium castaneum adultsWijayaratne, Leanage Kanaka Wolly0Dissanayaka, Dissanayaka Mudiyanselage Saman Kumara1Sammani, Abeysinghe Mudiyanselage Prabodha2Rajapakse, Rohan Harshalal Sarathchandra3Department of Plant Sciences, Faculty of Agriculture, Rajarata University of Sri Lanka, Puliyankulama, Anuradhapura, Sri LankaDepartment of Plant Sciences, Faculty of Agriculture, Rajarata University of Sri Lanka, Puliyankulama, Anuradhapura, Sri LankaDepartment of Plant Sciences, Faculty of Agriculture, Rajarata University of Sri Lanka, Puliyankulama, Anuradhapura, Sri LankaDepartment of Plant Sciences, Faculty of Agriculture, Rajarata University of Sri Lanka, Puliyankulama, Anuradhapura, Sri LankaRhyzopertha dominica and Tribolium castaneum cause massive losses in stored food. These insects are effectively controlled by synthetic insecticides and fumigants but they accompany many demerits on biotic and abiotic environment. Spinosad is a bacterial formulation and a reduced-risk insecticide which is registered for stored grain protection in many countries. Despite many avenues of research on spinosad, its residual efficacy on certain insect species remains undiscovered. The objective of this research was to evaluate the residual efficacy of spinosad-treated surfaces on the survival of R. dominica and T. castaneum adults. The label rate of spinosad (25 ppm) was sprayed on polypropylene, jute, polythene, metal and filter paper. One-month-old twenty adults of R. dominica or T. castaneum were introduced on to the surfaces treated with spinosad and maintained at ambient environmental conditions. The mortality was counted at 2 and 6 days following introduction of adults. The mortality differed with the surface, insect species and duration of exposure. The current study highlights the possibility of controlling R. dominica or T. castaneum by spinosad sprayed on different surfaces.https://www.openagrar.de/receive/openagrar_mods_00078601rhyzopertha dominicatribolium castaneumspinosadsurfacesresidual efficacy
spellingShingle Wijayaratne, Leanage Kanaka Wolly
Dissanayaka, Dissanayaka Mudiyanselage Saman Kumara
Sammani, Abeysinghe Mudiyanselage Prabodha
Rajapakse, Rohan Harshalal Sarathchandra
Residual efficacy of spinosad-treated surfaces on Rhyzopertha dominica and Tribolium castaneum adults
Julius-Kühn-Archiv
rhyzopertha dominica
tribolium castaneum
spinosad
surfaces
residual efficacy
title Residual efficacy of spinosad-treated surfaces on Rhyzopertha dominica and Tribolium castaneum adults
title_full Residual efficacy of spinosad-treated surfaces on Rhyzopertha dominica and Tribolium castaneum adults
title_fullStr Residual efficacy of spinosad-treated surfaces on Rhyzopertha dominica and Tribolium castaneum adults
title_full_unstemmed Residual efficacy of spinosad-treated surfaces on Rhyzopertha dominica and Tribolium castaneum adults
title_short Residual efficacy of spinosad-treated surfaces on Rhyzopertha dominica and Tribolium castaneum adults
title_sort residual efficacy of spinosad treated surfaces on rhyzopertha dominica and tribolium castaneum adults
topic rhyzopertha dominica
tribolium castaneum
spinosad
surfaces
residual efficacy
url https://www.openagrar.de/receive/openagrar_mods_00078601
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