How omnivory affects the survival and choices of earwig Doru luteipes (Scudder) (Dermaptera: Forficulidae)?
Doru luteipes (Scudder, 1876) is an omnivorous predator that finds different food resources in the corn plant: eggs of Spodoptera frugiperda (J.E. Smith, 1797), uredospores of Puccinia polysora (Underw, 1897), and pollen. Knowing the survival and food preferences of this predator is essential to define its relevance as a biological control agent. We hypothesize that the foraging behavior and predatory capacity of D. luteipes may be affected when several food resources, especially eggs of S. frugiperda, uredospores of P. polysora, and pollen are concurrently in the same plant. The survival of D. luteipes in the nymph stage and their preference among food resources, often available in corn plants, were determined. To verify the survival of D. luteipes, newly hatched nymphs were fed exclusively with 1- uredospores of P. polysora, 2- eggs of S. frugiperda, 3- corn pollen, 4- a combination of uredospores + eggs, and 5- artificial diet (control). In another experiment, nymphs and adults of D. luteipes with 24 and 48 hours of fasting were individually released in the center of a container with four diets: 1- uredospores of P. polysora, 2- eggs of S. frugiperda, 3- corn pollen, 4- artificial diet, and maintained for 10 minutes, to evaluate the food choice and feeding time. The exclusive feeding with S. frugiperda eggs caused low nymph survival (8%), but the combination of P. polysora uredospores + S. frugiperda eggs allowed 58.3% survival. D. luteipes preferred feeding during the nighttime and the most significant proportions of choices by nymphs and adults were for pollen and diet, with adults spending more time eating pollen. These findings indicate that the trophic choices of D. luteipes are relevant to understand its contribution as an agent to control pest insects and fungal diseases in corn.
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Format: | Artigo de periódico biblioteca |
Language: | Ingles English |
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2021-06-21
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Subjects: | Onivoria, Doru luteipes, Predador, Spodoptera Frugiperda, Controle Biológico, Zea Mays, Milho, Puccinia polysora, |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132430 https://doi.org/10.1590/1519-6984.243890 |
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dig-alice-doc-11324302021-06-21T18:01:16Z How omnivory affects the survival and choices of earwig Doru luteipes (Scudder) (Dermaptera: Forficulidae)? PACHECO, R. C. SILVA, D. D. da MENDES, S. M. LIMA, K. P. FIGUEIREDO, J. E. F. MARUCCI, E, C. Universidade Federal de Lavras; DAGMA DIONISIA DA SILVA, CNPMS; SIMONE MARTINS MENDES, CNPMS; Universidade Federal de Lavras; JOSE EDSON FONTES FIGUEIREDO, CNPMS; Universidade Federal de Lavras. Onivoria Doru luteipes Predador Spodoptera Frugiperda Controle Biológico Zea Mays Milho Puccinia polysora Doru luteipes (Scudder, 1876) is an omnivorous predator that finds different food resources in the corn plant: eggs of Spodoptera frugiperda (J.E. Smith, 1797), uredospores of Puccinia polysora (Underw, 1897), and pollen. Knowing the survival and food preferences of this predator is essential to define its relevance as a biological control agent. We hypothesize that the foraging behavior and predatory capacity of D. luteipes may be affected when several food resources, especially eggs of S. frugiperda, uredospores of P. polysora, and pollen are concurrently in the same plant. The survival of D. luteipes in the nymph stage and their preference among food resources, often available in corn plants, were determined. To verify the survival of D. luteipes, newly hatched nymphs were fed exclusively with 1- uredospores of P. polysora, 2- eggs of S. frugiperda, 3- corn pollen, 4- a combination of uredospores + eggs, and 5- artificial diet (control). In another experiment, nymphs and adults of D. luteipes with 24 and 48 hours of fasting were individually released in the center of a container with four diets: 1- uredospores of P. polysora, 2- eggs of S. frugiperda, 3- corn pollen, 4- artificial diet, and maintained for 10 minutes, to evaluate the food choice and feeding time. The exclusive feeding with S. frugiperda eggs caused low nymph survival (8%), but the combination of P. polysora uredospores + S. frugiperda eggs allowed 58.3% survival. D. luteipes preferred feeding during the nighttime and the most significant proportions of choices by nymphs and adults were for pollen and diet, with adults spending more time eating pollen. These findings indicate that the trophic choices of D. luteipes are relevant to understand its contribution as an agent to control pest insects and fungal diseases in corn. 2021-06-21T18:01:07Z 2021-06-21T18:01:07Z 2021-06-21 2021 Artigo de periódico Brazilian Journal of Biology, v. 83, e243890, 2021. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132430 https://doi.org/10.1590/1519-6984.243890 Ingles en openAccess |
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Onivoria Doru luteipes Predador Spodoptera Frugiperda Controle Biológico Zea Mays Milho Puccinia polysora Onivoria Doru luteipes Predador Spodoptera Frugiperda Controle Biológico Zea Mays Milho Puccinia polysora |
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Onivoria Doru luteipes Predador Spodoptera Frugiperda Controle Biológico Zea Mays Milho Puccinia polysora Onivoria Doru luteipes Predador Spodoptera Frugiperda Controle Biológico Zea Mays Milho Puccinia polysora PACHECO, R. C. SILVA, D. D. da MENDES, S. M. LIMA, K. P. FIGUEIREDO, J. E. F. MARUCCI, E, C. How omnivory affects the survival and choices of earwig Doru luteipes (Scudder) (Dermaptera: Forficulidae)? |
description |
Doru luteipes (Scudder, 1876) is an omnivorous predator that finds different food resources in the corn plant: eggs of Spodoptera frugiperda (J.E. Smith, 1797), uredospores of Puccinia polysora (Underw, 1897), and pollen. Knowing the survival and food preferences of this predator is essential to define its relevance as a biological control agent. We hypothesize that the foraging behavior and predatory capacity of D. luteipes may be affected when several food resources, especially eggs of S. frugiperda, uredospores of P. polysora, and pollen are concurrently in the same plant. The survival of D. luteipes in the nymph stage and their preference among food resources, often available in corn plants, were determined. To verify the survival of D. luteipes, newly hatched nymphs were fed exclusively with 1- uredospores of P. polysora, 2- eggs of S. frugiperda, 3- corn pollen, 4- a combination of uredospores + eggs, and 5- artificial diet (control). In another experiment, nymphs and adults of D. luteipes with 24 and 48 hours of fasting were individually released in the center of a container with four diets: 1- uredospores of P. polysora, 2- eggs of S. frugiperda, 3- corn pollen, 4- artificial diet, and maintained for 10 minutes, to evaluate the food choice and feeding time. The exclusive feeding with S. frugiperda eggs caused low nymph survival (8%), but the combination of P. polysora uredospores + S. frugiperda eggs allowed 58.3% survival. D. luteipes preferred feeding during the nighttime and the most significant proportions of choices by nymphs and adults were for pollen and diet, with adults spending more time eating pollen. These findings indicate that the trophic choices of D. luteipes are relevant to understand its contribution as an agent to control pest insects and fungal diseases in corn. |
author2 |
Universidade Federal de Lavras; DAGMA DIONISIA DA SILVA, CNPMS; SIMONE MARTINS MENDES, CNPMS; Universidade Federal de Lavras; JOSE EDSON FONTES FIGUEIREDO, CNPMS; Universidade Federal de Lavras. |
author_facet |
Universidade Federal de Lavras; DAGMA DIONISIA DA SILVA, CNPMS; SIMONE MARTINS MENDES, CNPMS; Universidade Federal de Lavras; JOSE EDSON FONTES FIGUEIREDO, CNPMS; Universidade Federal de Lavras. PACHECO, R. C. SILVA, D. D. da MENDES, S. M. LIMA, K. P. FIGUEIREDO, J. E. F. MARUCCI, E, C. |
format |
Artigo de periódico |
topic_facet |
Onivoria Doru luteipes Predador Spodoptera Frugiperda Controle Biológico Zea Mays Milho Puccinia polysora |
author |
PACHECO, R. C. SILVA, D. D. da MENDES, S. M. LIMA, K. P. FIGUEIREDO, J. E. F. MARUCCI, E, C. |
author_sort |
PACHECO, R. C. |
title |
How omnivory affects the survival and choices of earwig Doru luteipes (Scudder) (Dermaptera: Forficulidae)? |
title_short |
How omnivory affects the survival and choices of earwig Doru luteipes (Scudder) (Dermaptera: Forficulidae)? |
title_full |
How omnivory affects the survival and choices of earwig Doru luteipes (Scudder) (Dermaptera: Forficulidae)? |
title_fullStr |
How omnivory affects the survival and choices of earwig Doru luteipes (Scudder) (Dermaptera: Forficulidae)? |
title_full_unstemmed |
How omnivory affects the survival and choices of earwig Doru luteipes (Scudder) (Dermaptera: Forficulidae)? |
title_sort |
how omnivory affects the survival and choices of earwig doru luteipes (scudder) (dermaptera: forficulidae)? |
publishDate |
2021-06-21 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132430 https://doi.org/10.1590/1519-6984.243890 |
work_keys_str_mv |
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