Cargando…

Insecticidal Activity of a Petroleum-Derived Spray Oil and an Organosilicone Surfactant on Listronotus maculicollis (Kirby) Adults in Laboratory and Greenhouse Bioassays

SIMPLE SUMMARY: The annual bluegrass weevil (ABW), the most severe insect pest of short-mown turfgrass in eastern North America. Control programs traditionally target overwintering adults in spring (prior to egg laying) with broad-spectrum insecticides. However, the development of pyrethroid- and mu...

Descripción completa

Detalles Bibliográficos
Autores principales: McGraw, Benjamin A., Koppenhöfer, Albrecht M., Kostromytska, Olga, Wu, Shaohui, Alm, Steven R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9695151/
https://www.ncbi.nlm.nih.gov/pubmed/36354857
http://dx.doi.org/10.3390/insects13111032
_version_ 1784837984195969024
author McGraw, Benjamin A.
Koppenhöfer, Albrecht M.
Kostromytska, Olga
Wu, Shaohui
Alm, Steven R.
author_facet McGraw, Benjamin A.
Koppenhöfer, Albrecht M.
Kostromytska, Olga
Wu, Shaohui
Alm, Steven R.
author_sort McGraw, Benjamin A.
collection PubMed
description SIMPLE SUMMARY: The annual bluegrass weevil (ABW), the most severe insect pest of short-mown turfgrass in eastern North America. Control programs traditionally target overwintering adults in spring (prior to egg laying) with broad-spectrum insecticides. However, the development of pyrethroid- and multiple-resistant populations has created the need for novel approaches. We investigated the insecticidal activity of a petroleum-derived spray oil and a surfactant on adults in laboratory and greenhouse trials. Both products caused rapid mortality, though were affected by carrier volumes, irrigation volume, and soil/substrate moisture. Neither products’ efficacy was affected by ABW pyrethroid resistance levels. ABSTRACT: The annual bluegrass weevil (ABW), Listronotus maculicollis (Kirby), is a severe pest of golf course turf in eastern North America. The development of pyrethroid- and multiple-resistant populations has created a dire need for novel tactics to control adults. We examined the insecticidal properties of a petroleum-derived spray oil (PDSO; Civitas Turf Defense™.) and an organosilicone, nonionic soil surfactant (Silwet L-77(®)) in laboratory and greenhouse bioassays. Civitas and Silwet killed > 75% of ABW adults in multiple assays. The level of control was positively affected by increased rate, spray application volume, and soil moisture levels. Dissections of weevils treated with Civitas revealed material entering the insect’s hemocoel after 15–30 min, though most mortality occurred between the 3 and 24 h observation periods. Reducing rates while increasing carrier volume or soil moisture levels through irrigation applied prior to or after application also provided excellent control of adults in the same observation periods. Silwet provided comparable, yet less consistent levels of control in the laboratory studies but was excluded from further tests after treated plants demonstrated phytotoxicity in greenhouse studies. Neither Silwet nor Civitas efficacy was affected by pyrethroid resistance levels in the ABW populations tested.
format Online
Article
Text
id pubmed-9695151
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-96951512022-11-26 Insecticidal Activity of a Petroleum-Derived Spray Oil and an Organosilicone Surfactant on Listronotus maculicollis (Kirby) Adults in Laboratory and Greenhouse Bioassays McGraw, Benjamin A. Koppenhöfer, Albrecht M. Kostromytska, Olga Wu, Shaohui Alm, Steven R. Insects Article SIMPLE SUMMARY: The annual bluegrass weevil (ABW), the most severe insect pest of short-mown turfgrass in eastern North America. Control programs traditionally target overwintering adults in spring (prior to egg laying) with broad-spectrum insecticides. However, the development of pyrethroid- and multiple-resistant populations has created the need for novel approaches. We investigated the insecticidal activity of a petroleum-derived spray oil and a surfactant on adults in laboratory and greenhouse trials. Both products caused rapid mortality, though were affected by carrier volumes, irrigation volume, and soil/substrate moisture. Neither products’ efficacy was affected by ABW pyrethroid resistance levels. ABSTRACT: The annual bluegrass weevil (ABW), Listronotus maculicollis (Kirby), is a severe pest of golf course turf in eastern North America. The development of pyrethroid- and multiple-resistant populations has created a dire need for novel tactics to control adults. We examined the insecticidal properties of a petroleum-derived spray oil (PDSO; Civitas Turf Defense™.) and an organosilicone, nonionic soil surfactant (Silwet L-77(®)) in laboratory and greenhouse bioassays. Civitas and Silwet killed > 75% of ABW adults in multiple assays. The level of control was positively affected by increased rate, spray application volume, and soil moisture levels. Dissections of weevils treated with Civitas revealed material entering the insect’s hemocoel after 15–30 min, though most mortality occurred between the 3 and 24 h observation periods. Reducing rates while increasing carrier volume or soil moisture levels through irrigation applied prior to or after application also provided excellent control of adults in the same observation periods. Silwet provided comparable, yet less consistent levels of control in the laboratory studies but was excluded from further tests after treated plants demonstrated phytotoxicity in greenhouse studies. Neither Silwet nor Civitas efficacy was affected by pyrethroid resistance levels in the ABW populations tested. MDPI 2022-11-08 /pmc/articles/PMC9695151/ /pubmed/36354857 http://dx.doi.org/10.3390/insects13111032 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
McGraw, Benjamin A.
Koppenhöfer, Albrecht M.
Kostromytska, Olga
Wu, Shaohui
Alm, Steven R.
Insecticidal Activity of a Petroleum-Derived Spray Oil and an Organosilicone Surfactant on Listronotus maculicollis (Kirby) Adults in Laboratory and Greenhouse Bioassays
title Insecticidal Activity of a Petroleum-Derived Spray Oil and an Organosilicone Surfactant on Listronotus maculicollis (Kirby) Adults in Laboratory and Greenhouse Bioassays
title_full Insecticidal Activity of a Petroleum-Derived Spray Oil and an Organosilicone Surfactant on Listronotus maculicollis (Kirby) Adults in Laboratory and Greenhouse Bioassays
title_fullStr Insecticidal Activity of a Petroleum-Derived Spray Oil and an Organosilicone Surfactant on Listronotus maculicollis (Kirby) Adults in Laboratory and Greenhouse Bioassays
title_full_unstemmed Insecticidal Activity of a Petroleum-Derived Spray Oil and an Organosilicone Surfactant on Listronotus maculicollis (Kirby) Adults in Laboratory and Greenhouse Bioassays
title_short Insecticidal Activity of a Petroleum-Derived Spray Oil and an Organosilicone Surfactant on Listronotus maculicollis (Kirby) Adults in Laboratory and Greenhouse Bioassays
title_sort insecticidal activity of a petroleum-derived spray oil and an organosilicone surfactant on listronotus maculicollis (kirby) adults in laboratory and greenhouse bioassays
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9695151/
https://www.ncbi.nlm.nih.gov/pubmed/36354857
http://dx.doi.org/10.3390/insects13111032
work_keys_str_mv AT mcgrawbenjamina insecticidalactivityofapetroleumderivedsprayoilandanorganosiliconesurfactantonlistronotusmaculicolliskirbyadultsinlaboratoryandgreenhousebioassays
AT koppenhoferalbrechtm insecticidalactivityofapetroleumderivedsprayoilandanorganosiliconesurfactantonlistronotusmaculicolliskirbyadultsinlaboratoryandgreenhousebioassays
AT kostromytskaolga insecticidalactivityofapetroleumderivedsprayoilandanorganosiliconesurfactantonlistronotusmaculicolliskirbyadultsinlaboratoryandgreenhousebioassays
AT wushaohui insecticidalactivityofapetroleumderivedsprayoilandanorganosiliconesurfactantonlistronotusmaculicolliskirbyadultsinlaboratoryandgreenhousebioassays
AT almstevenr insecticidalactivityofapetroleumderivedsprayoilandanorganosiliconesurfactantonlistronotusmaculicolliskirbyadultsinlaboratoryandgreenhousebioassays