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Assessing Spirulina platensis as a dietary supplement and for toxicity to Rhynchophorus ferrugineus (Coleoptera: Dryopthoridae)

Insects are important for humanity; play role in crop pollination, and biocontrol of harmful pests. The red palm weevil, Rhynchophorus ferrugineus, is a major pest of date palms and has become a serious threat. Scientists needs ample numbers of insects for bioassays to explore control options. The a...

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Autor principal: Al-Qahtani, Wahidah H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7938130/
https://www.ncbi.nlm.nih.gov/pubmed/33732065
http://dx.doi.org/10.1016/j.sjbs.2020.12.024
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author Al-Qahtani, Wahidah H.
author_facet Al-Qahtani, Wahidah H.
author_sort Al-Qahtani, Wahidah H.
collection PubMed
description Insects are important for humanity; play role in crop pollination, and biocontrol of harmful pests. The red palm weevil, Rhynchophorus ferrugineus, is a major pest of date palms and has become a serious threat. Scientists needs ample numbers of insects for bioassays to explore control options. The alga Spirulina platensis, is enriched by protein, natural vitamins, minerals, and amino acids, stimulate the development of organisms that feed on it. I assessed the value of Spirulina as a nutritional supplement for red palm weevil larvae by adding its various percentages to the artificial diet. Once a week, the larvae were removed from the containers, washed with distilled water, dried, weighed using an electronic scale, returned to a new container, and supplied with Spirulina mixed fresh diet. Larvae fed with lower concentrations showed vigorous growth and significant weight gain. Particularly, larvae fed 0.5%, 1%, and 2% Spirulina powder supplementation to their diet were healthier and gained more weight than larvae reared with >5% concentration. Overall 40% mortality was recorded in larvae fed with 10% concentration. Higher concentrations were lethal, and all larvae died within two weeks when fed 20% Spirulina. The present research findings indicate that Spirulina used in concentrations from 0.5% to below 5% had a beneficial effect on red palm weevil larval growth but a detrimental effect and even mortality was recorded when used ≥5%.
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spelling pubmed-79381302021-03-16 Assessing Spirulina platensis as a dietary supplement and for toxicity to Rhynchophorus ferrugineus (Coleoptera: Dryopthoridae) Al-Qahtani, Wahidah H. Saudi J Biol Sci Original Article Insects are important for humanity; play role in crop pollination, and biocontrol of harmful pests. The red palm weevil, Rhynchophorus ferrugineus, is a major pest of date palms and has become a serious threat. Scientists needs ample numbers of insects for bioassays to explore control options. The alga Spirulina platensis, is enriched by protein, natural vitamins, minerals, and amino acids, stimulate the development of organisms that feed on it. I assessed the value of Spirulina as a nutritional supplement for red palm weevil larvae by adding its various percentages to the artificial diet. Once a week, the larvae were removed from the containers, washed with distilled water, dried, weighed using an electronic scale, returned to a new container, and supplied with Spirulina mixed fresh diet. Larvae fed with lower concentrations showed vigorous growth and significant weight gain. Particularly, larvae fed 0.5%, 1%, and 2% Spirulina powder supplementation to their diet were healthier and gained more weight than larvae reared with >5% concentration. Overall 40% mortality was recorded in larvae fed with 10% concentration. Higher concentrations were lethal, and all larvae died within two weeks when fed 20% Spirulina. The present research findings indicate that Spirulina used in concentrations from 0.5% to below 5% had a beneficial effect on red palm weevil larval growth but a detrimental effect and even mortality was recorded when used ≥5%. Elsevier 2021-03 2020-12-31 /pmc/articles/PMC7938130/ /pubmed/33732065 http://dx.doi.org/10.1016/j.sjbs.2020.12.024 Text en © 2020 Published by Elsevier B.V. on behalf of King Saud University. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Original Article
Al-Qahtani, Wahidah H.
Assessing Spirulina platensis as a dietary supplement and for toxicity to Rhynchophorus ferrugineus (Coleoptera: Dryopthoridae)
title Assessing Spirulina platensis as a dietary supplement and for toxicity to Rhynchophorus ferrugineus (Coleoptera: Dryopthoridae)
title_full Assessing Spirulina platensis as a dietary supplement and for toxicity to Rhynchophorus ferrugineus (Coleoptera: Dryopthoridae)
title_fullStr Assessing Spirulina platensis as a dietary supplement and for toxicity to Rhynchophorus ferrugineus (Coleoptera: Dryopthoridae)
title_full_unstemmed Assessing Spirulina platensis as a dietary supplement and for toxicity to Rhynchophorus ferrugineus (Coleoptera: Dryopthoridae)
title_short Assessing Spirulina platensis as a dietary supplement and for toxicity to Rhynchophorus ferrugineus (Coleoptera: Dryopthoridae)
title_sort assessing spirulina platensis as a dietary supplement and for toxicity to rhynchophorus ferrugineus (coleoptera: dryopthoridae)
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7938130/
https://www.ncbi.nlm.nih.gov/pubmed/33732065
http://dx.doi.org/10.1016/j.sjbs.2020.12.024
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