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Combination of Methoprene and Controlled Aeration to Manage Insects in Stored Wheat
A commercial formulation of the insect growth regulator methoprene was applied to wheat stored in small bins either alone or in combination with controlled aeration of the bins, to lower grain temperature for insect pest management of stored wheat. Grain temperatures were monitored and modified by a...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4931437/ https://www.ncbi.nlm.nih.gov/pubmed/27322331 http://dx.doi.org/10.3390/insects7020025 |
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author | Liu, Samuel S. Arthur, Frank H. VanGundy, Douglas Phillips, Thomas W. |
author_facet | Liu, Samuel S. Arthur, Frank H. VanGundy, Douglas Phillips, Thomas W. |
author_sort | Liu, Samuel S. |
collection | PubMed |
description | A commercial formulation of the insect growth regulator methoprene was applied to wheat stored in small bins either alone or in combination with controlled aeration of the bins, to lower grain temperature for insect pest management of stored wheat. Grain temperatures were monitored and modified by a computer-controlled thermocouple system that also activated the aeration system at programmed set-points to move cool ambient air through the grain mass to lower grain temperature. Results from sampling insect populations in experimental storage bins along with laboratory mortality bioassays of insects placed on wheat taken from the bins over the course of the storage period showed that methoprene was very effective in controlling infestation by the externally-feeding stored grain insects Plodia interpunctella (Hübner), the Indian meal moth Tribolium castaneum (Herbst), the red flour beetle, Cryptolestes ferrugineus (Stephens), the rusty grain beetle, and also for the internal-feeding pest Rhyzopertha dominica( Fauvel), the lesser grain borer. Methoprene did not give good control of the internal-feeding pest Sitophilus oryzae (L.), the rice weevil. Aeration alone was somewhat effective in suppressing insect population development, while methoprene alone or when combined with aeration greatly enhanced insect control. Commercial grain grading for industry quality standards at the end of the storage period confirmed the impact of insect suppression on maintaining high quality of the stored wheat. This field experiment shows that methoprene combined with aeration to cool grain can be effective for pest management of stored wheat in the southern plains of the United States of America. |
format | Online Article Text |
id | pubmed-4931437 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-49314372016-07-08 Combination of Methoprene and Controlled Aeration to Manage Insects in Stored Wheat Liu, Samuel S. Arthur, Frank H. VanGundy, Douglas Phillips, Thomas W. Insects Article A commercial formulation of the insect growth regulator methoprene was applied to wheat stored in small bins either alone or in combination with controlled aeration of the bins, to lower grain temperature for insect pest management of stored wheat. Grain temperatures were monitored and modified by a computer-controlled thermocouple system that also activated the aeration system at programmed set-points to move cool ambient air through the grain mass to lower grain temperature. Results from sampling insect populations in experimental storage bins along with laboratory mortality bioassays of insects placed on wheat taken from the bins over the course of the storage period showed that methoprene was very effective in controlling infestation by the externally-feeding stored grain insects Plodia interpunctella (Hübner), the Indian meal moth Tribolium castaneum (Herbst), the red flour beetle, Cryptolestes ferrugineus (Stephens), the rusty grain beetle, and also for the internal-feeding pest Rhyzopertha dominica( Fauvel), the lesser grain borer. Methoprene did not give good control of the internal-feeding pest Sitophilus oryzae (L.), the rice weevil. Aeration alone was somewhat effective in suppressing insect population development, while methoprene alone or when combined with aeration greatly enhanced insect control. Commercial grain grading for industry quality standards at the end of the storage period confirmed the impact of insect suppression on maintaining high quality of the stored wheat. This field experiment shows that methoprene combined with aeration to cool grain can be effective for pest management of stored wheat in the southern plains of the United States of America. MDPI 2016-06-17 /pmc/articles/PMC4931437/ /pubmed/27322331 http://dx.doi.org/10.3390/insects7020025 Text en © 2016 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 Liu, Samuel S. Arthur, Frank H. VanGundy, Douglas Phillips, Thomas W. Combination of Methoprene and Controlled Aeration to Manage Insects in Stored Wheat |
title | Combination of Methoprene and Controlled Aeration to Manage Insects in Stored Wheat |
title_full | Combination of Methoprene and Controlled Aeration to Manage Insects in Stored Wheat |
title_fullStr | Combination of Methoprene and Controlled Aeration to Manage Insects in Stored Wheat |
title_full_unstemmed | Combination of Methoprene and Controlled Aeration to Manage Insects in Stored Wheat |
title_short | Combination of Methoprene and Controlled Aeration to Manage Insects in Stored Wheat |
title_sort | combination of methoprene and controlled aeration to manage insects in stored wheat |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4931437/ https://www.ncbi.nlm.nih.gov/pubmed/27322331 http://dx.doi.org/10.3390/insects7020025 |
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