Elucidating the Fitness of a Dead-End Trap Crop Strategy against the Tomato Fruitworm, <i>Helicoverpa armigera</i>

<i>Solanum viarum</i> has been proposed as a potential dead-end trap crop for the management of <i>Helicoverpa armigera</i> because of its unsuitability for larval growth and survival despite being overwhelmingly preferred for oviposition. This study delved into the different...

Full description

Bibliographic Details
Main Authors: Purushottam Gyawali, Shaw-Yhi Hwang, Paola Sotelo-Cardona, Ramasamy Srinivasan
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/12/6/506
_version_ 1797531943946944512
author Purushottam Gyawali
Shaw-Yhi Hwang
Paola Sotelo-Cardona
Ramasamy Srinivasan
author_facet Purushottam Gyawali
Shaw-Yhi Hwang
Paola Sotelo-Cardona
Ramasamy Srinivasan
author_sort Purushottam Gyawali
collection DOAJ
description <i>Solanum viarum</i> has been proposed as a potential dead-end trap crop for the management of <i>Helicoverpa armigera</i> because of its unsuitability for larval growth and survival despite being overwhelmingly preferred for oviposition. This study delved into the different <i>S. viarum</i> accessions for ovipositional preference and non-suitability for larval growth and survival of <i>H. armigera</i>. Besides, foliage trichomes, acylsugars, and phenolic content of <i>S. viarum</i> plants were assessed and compared with tomato. Since there is no significant variation in the ovipositional preference and larval performance of <i>H. armigera</i>, our result revealed that all those evaluated accessions of <i>S. viarum</i> have the potential to be used as a dead-end trap crop for the management of <i>H. armigera</i>. However, significant variation among the <i>S. viarum</i> accessions in terms of <i>H. armigera</i> oviposition was also evident in a no-choice experiment. Because of high-density glandular trichomes, acylsugars, and phenolic content, <i>S. viarum</i> significantly impaired <i>H. armigera</i> larval growth and survival compared to the tomato. Hence, our study elucidated that the <i>S. viarum</i> plant fits with the criteria for dead-end trap crop, and has the potential as a dead-end trap crop for the <i>H. armigera</i>, which needs to be tested under large, open-field conditions.
first_indexed 2024-03-10T10:52:01Z
format Article
id doaj.art-bfe62b814d25438d82976aa383326ec5
institution Directory Open Access Journal
issn 2075-4450
language English
last_indexed 2024-03-10T10:52:01Z
publishDate 2021-05-01
publisher MDPI AG
record_format Article
series Insects
spelling doaj.art-bfe62b814d25438d82976aa383326ec52023-11-21T22:11:35ZengMDPI AGInsects2075-44502021-05-0112650610.3390/insects12060506Elucidating the Fitness of a Dead-End Trap Crop Strategy against the Tomato Fruitworm, <i>Helicoverpa armigera</i>Purushottam Gyawali0Shaw-Yhi Hwang1Paola Sotelo-Cardona2Ramasamy Srinivasan3Department of Entomology, College of Agriculture and Natural Resources, National Chung Hsing University, 145 Xingda Road, South District, Taichung City 402, TaiwanDepartment of Entomology, College of Agriculture and Natural Resources, National Chung Hsing University, 145 Xingda Road, South District, Taichung City 402, TaiwanWorld Vegetable Center, 60 Yi-Min Liao, Shanhua, Tainan 74151, TaiwanWorld Vegetable Center, 60 Yi-Min Liao, Shanhua, Tainan 74151, Taiwan<i>Solanum viarum</i> has been proposed as a potential dead-end trap crop for the management of <i>Helicoverpa armigera</i> because of its unsuitability for larval growth and survival despite being overwhelmingly preferred for oviposition. This study delved into the different <i>S. viarum</i> accessions for ovipositional preference and non-suitability for larval growth and survival of <i>H. armigera</i>. Besides, foliage trichomes, acylsugars, and phenolic content of <i>S. viarum</i> plants were assessed and compared with tomato. Since there is no significant variation in the ovipositional preference and larval performance of <i>H. armigera</i>, our result revealed that all those evaluated accessions of <i>S. viarum</i> have the potential to be used as a dead-end trap crop for the management of <i>H. armigera</i>. However, significant variation among the <i>S. viarum</i> accessions in terms of <i>H. armigera</i> oviposition was also evident in a no-choice experiment. Because of high-density glandular trichomes, acylsugars, and phenolic content, <i>S. viarum</i> significantly impaired <i>H. armigera</i> larval growth and survival compared to the tomato. Hence, our study elucidated that the <i>S. viarum</i> plant fits with the criteria for dead-end trap crop, and has the potential as a dead-end trap crop for the <i>H. armigera</i>, which needs to be tested under large, open-field conditions.https://www.mdpi.com/2075-4450/12/6/506<i>Solanum lycopersicum</i>tomato fruitwormcotton bollwormoviposition<i>Solanum viarum</i>dead-end trap crop
spellingShingle Purushottam Gyawali
Shaw-Yhi Hwang
Paola Sotelo-Cardona
Ramasamy Srinivasan
Elucidating the Fitness of a Dead-End Trap Crop Strategy against the Tomato Fruitworm, <i>Helicoverpa armigera</i>
Insects
<i>Solanum lycopersicum</i>
tomato fruitworm
cotton bollworm
oviposition
<i>Solanum viarum</i>
dead-end trap crop
title Elucidating the Fitness of a Dead-End Trap Crop Strategy against the Tomato Fruitworm, <i>Helicoverpa armigera</i>
title_full Elucidating the Fitness of a Dead-End Trap Crop Strategy against the Tomato Fruitworm, <i>Helicoverpa armigera</i>
title_fullStr Elucidating the Fitness of a Dead-End Trap Crop Strategy against the Tomato Fruitworm, <i>Helicoverpa armigera</i>
title_full_unstemmed Elucidating the Fitness of a Dead-End Trap Crop Strategy against the Tomato Fruitworm, <i>Helicoverpa armigera</i>
title_short Elucidating the Fitness of a Dead-End Trap Crop Strategy against the Tomato Fruitworm, <i>Helicoverpa armigera</i>
title_sort elucidating the fitness of a dead end trap crop strategy against the tomato fruitworm i helicoverpa armigera i
topic <i>Solanum lycopersicum</i>
tomato fruitworm
cotton bollworm
oviposition
<i>Solanum viarum</i>
dead-end trap crop
url https://www.mdpi.com/2075-4450/12/6/506
work_keys_str_mv AT purushottamgyawali elucidatingthefitnessofadeadendtrapcropstrategyagainstthetomatofruitwormihelicoverpaarmigerai
AT shawyhihwang elucidatingthefitnessofadeadendtrapcropstrategyagainstthetomatofruitwormihelicoverpaarmigerai
AT paolasotelocardona elucidatingthefitnessofadeadendtrapcropstrategyagainstthetomatofruitwormihelicoverpaarmigerai
AT ramasamysrinivasan elucidatingthefitnessofadeadendtrapcropstrategyagainstthetomatofruitwormihelicoverpaarmigerai