Group-Living Spider <i>Cyrtophora citricola</i> as a Potential Novel Biological Control Agent of the Tomato Pest <i>Tuta absoluta</i>

Group-living spiders may be uniquely suited for controlling flying insect pests, as their high tolerance for conspecifics and low levels of cannibalism result in large, predator dense capture webs. In laboratory settings, we tested the ability of the facultatively communal spider, <i>Cyrtophor...

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Main Authors: Thomas A. Roberts-McEwen, Ella K. Deutsch, Monica A. Mowery, Lena Grinsted
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/14/1/34
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author Thomas A. Roberts-McEwen
Ella K. Deutsch
Monica A. Mowery
Lena Grinsted
author_facet Thomas A. Roberts-McEwen
Ella K. Deutsch
Monica A. Mowery
Lena Grinsted
author_sort Thomas A. Roberts-McEwen
collection DOAJ
description Group-living spiders may be uniquely suited for controlling flying insect pests, as their high tolerance for conspecifics and low levels of cannibalism result in large, predator dense capture webs. In laboratory settings, we tested the ability of the facultatively communal spider, <i>Cyrtophora citricola</i>, to control the tomato leafminer, <i>Tuta absoluta</i>; a major pest of tomato crops worldwide. We tested whether prey capture success was affected by spider body size, and whether prey capture differed among <i>T. absoluta</i>, flightless fruit flies (<i>Drosophila hydei</i>), and larger black soldier flies (<i>Hermetia illucens</i>). We found that larger spiders generally caught more prey, and that prey capture success was similar for <i>T. absoluta</i> and easily caught fruit flies, while black soldier flies were rarely caught. We further investigated the seasonal variations in web sizes in southern Spain, and found that pest control would be most effective in the tomato planting and growing season. Finally, we show that <i>C. citricola</i> in Spain have >50% infection rates of an egg predatory wasp, <i>Philolema palanichamyi</i>, which may need controlling to maintain pest control efficacy. These results suggest that using <i>C. citricola</i> as a biological control agent in an integrated pest management system could potentially facilitate a reduction of pesticide reliance in the future.
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spelling doaj.art-49059e7b389343f7bd7177f5e50d7cc02023-11-30T22:48:02ZengMDPI AGInsects2075-44502022-12-011413410.3390/insects14010034Group-Living Spider <i>Cyrtophora citricola</i> as a Potential Novel Biological Control Agent of the Tomato Pest <i>Tuta absoluta</i>Thomas A. Roberts-McEwen0Ella K. Deutsch1Monica A. Mowery2Lena Grinsted3School of Biological Sciences, University of Portsmouth, King Henry Building, King Henry 1 Street, Portsmouth PO1 2DY, UKSchool of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UKJacob Blaustein Institutes for Desert Research, Mitrani Department of Desert Ecology, Ben-Gurion University of the Negev, Midreshet Ben-Gurion 8499000, IsraelSchool of Biological Sciences, University of Portsmouth, King Henry Building, King Henry 1 Street, Portsmouth PO1 2DY, UKGroup-living spiders may be uniquely suited for controlling flying insect pests, as their high tolerance for conspecifics and low levels of cannibalism result in large, predator dense capture webs. In laboratory settings, we tested the ability of the facultatively communal spider, <i>Cyrtophora citricola</i>, to control the tomato leafminer, <i>Tuta absoluta</i>; a major pest of tomato crops worldwide. We tested whether prey capture success was affected by spider body size, and whether prey capture differed among <i>T. absoluta</i>, flightless fruit flies (<i>Drosophila hydei</i>), and larger black soldier flies (<i>Hermetia illucens</i>). We found that larger spiders generally caught more prey, and that prey capture success was similar for <i>T. absoluta</i> and easily caught fruit flies, while black soldier flies were rarely caught. We further investigated the seasonal variations in web sizes in southern Spain, and found that pest control would be most effective in the tomato planting and growing season. Finally, we show that <i>C. citricola</i> in Spain have >50% infection rates of an egg predatory wasp, <i>Philolema palanichamyi</i>, which may need controlling to maintain pest control efficacy. These results suggest that using <i>C. citricola</i> as a biological control agent in an integrated pest management system could potentially facilitate a reduction of pesticide reliance in the future.https://www.mdpi.com/2075-4450/14/1/34socialitycommunalcolonial spiderspredator-preyfood securitypesticide resistance
spellingShingle Thomas A. Roberts-McEwen
Ella K. Deutsch
Monica A. Mowery
Lena Grinsted
Group-Living Spider <i>Cyrtophora citricola</i> as a Potential Novel Biological Control Agent of the Tomato Pest <i>Tuta absoluta</i>
Insects
sociality
communal
colonial spiders
predator-prey
food security
pesticide resistance
title Group-Living Spider <i>Cyrtophora citricola</i> as a Potential Novel Biological Control Agent of the Tomato Pest <i>Tuta absoluta</i>
title_full Group-Living Spider <i>Cyrtophora citricola</i> as a Potential Novel Biological Control Agent of the Tomato Pest <i>Tuta absoluta</i>
title_fullStr Group-Living Spider <i>Cyrtophora citricola</i> as a Potential Novel Biological Control Agent of the Tomato Pest <i>Tuta absoluta</i>
title_full_unstemmed Group-Living Spider <i>Cyrtophora citricola</i> as a Potential Novel Biological Control Agent of the Tomato Pest <i>Tuta absoluta</i>
title_short Group-Living Spider <i>Cyrtophora citricola</i> as a Potential Novel Biological Control Agent of the Tomato Pest <i>Tuta absoluta</i>
title_sort group living spider i cyrtophora citricola i as a potential novel biological control agent of the tomato pest i tuta absoluta i
topic sociality
communal
colonial spiders
predator-prey
food security
pesticide resistance
url https://www.mdpi.com/2075-4450/14/1/34
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