Defensive behaviors of the new mealybug citrus pest, Delottococcus aberiae (Hemiptera: Pseudococcidae), against three generalist parasitoids

Delottococcus aberiae De Lotto (Hemiptera: Pseudococcidae) is an invasive mealybug that has become a citrus pest in Europe. This mealybug species causes serious damage because it deforms the fruits. Here, we studied the defensive behavior of D. aberiae when it was attacked by three parasitoid specie...

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Autores principales: Tena, Alejandro, Nieves, Eliana, Herrero-Schell, Julieta, Urbaneja, Alberto
Formato: article
Lenguaje:Inglés
Publicado: 2019
Acceso en línea:http://hdl.handle.net/20.500.11939/6243
https://academic.oup.com/jee/article/111/1/89/4708320
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author Tena, Alejandro
Nieves, Eliana
Herrero-Schell, Julieta
Urbaneja, Alberto
author_browse Herrero-Schell, Julieta
Nieves, Eliana
Tena, Alejandro
Urbaneja, Alberto
author_facet Tena, Alejandro
Nieves, Eliana
Herrero-Schell, Julieta
Urbaneja, Alberto
author_sort Tena, Alejandro
collection ReDivia
description Delottococcus aberiae De Lotto (Hemiptera: Pseudococcidae) is an invasive mealybug that has become a citrus pest in Europe. This mealybug species causes serious damage because it deforms the fruits. Here, we studied the defensive behavior of D. aberiae when it was attacked by three parasitoid species: Acerophagus angustifrons (Gahan), Anagyrus sp. near pseudoccoci (Girault), and Leptomastix algirica Trjapitzin (Hymenoptera: Encyrtidae). Anagyrus sp. near pseudoccoci and L. algirica detected and accepted nymphs and adult females of D. aberiae, whereas A. angustifrons only accepted adults. We recorded four defensive responses of D. aberiae to parasitoid attacks: abdominal flipping, swiveling around the inserted stylet, withdrawing the stylet and walking away, and, occasionally, they secreted ostiolar fluids. Despite these defensive behaviors, the mealybug did not escape parasitism from any of the tested parasitoids, even though A. angustifrons needed more than 15 min to parasitize. We also analyzed the nutritional value of the honeydew excreted by D. aberiae for A. angustifrons and A. sp. near pseudococci. Females and males of these parasitoids lived more than 28 d when fed sucrose, but they lived fewer than 3 d when fed D. aberiae honeydew. Therefore, D. aberiae excretes honeydew of poor quality for parasitoids. The consequences of these biological traits of D. aberiae for its biological control are discussed.
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spelling ReDivia62432025-04-25T14:46:38Z Defensive behaviors of the new mealybug citrus pest, Delottococcus aberiae (Hemiptera: Pseudococcidae), against three generalist parasitoids Tena, Alejandro Nieves, Eliana Herrero-Schell, Julieta Urbaneja, Alberto Delottococcus aberiae De Lotto (Hemiptera: Pseudococcidae) is an invasive mealybug that has become a citrus pest in Europe. This mealybug species causes serious damage because it deforms the fruits. Here, we studied the defensive behavior of D. aberiae when it was attacked by three parasitoid species: Acerophagus angustifrons (Gahan), Anagyrus sp. near pseudoccoci (Girault), and Leptomastix algirica Trjapitzin (Hymenoptera: Encyrtidae). Anagyrus sp. near pseudoccoci and L. algirica detected and accepted nymphs and adult females of D. aberiae, whereas A. angustifrons only accepted adults. We recorded four defensive responses of D. aberiae to parasitoid attacks: abdominal flipping, swiveling around the inserted stylet, withdrawing the stylet and walking away, and, occasionally, they secreted ostiolar fluids. Despite these defensive behaviors, the mealybug did not escape parasitism from any of the tested parasitoids, even though A. angustifrons needed more than 15 min to parasitize. We also analyzed the nutritional value of the honeydew excreted by D. aberiae for A. angustifrons and A. sp. near pseudococci. Females and males of these parasitoids lived more than 28 d when fed sucrose, but they lived fewer than 3 d when fed D. aberiae honeydew. Therefore, D. aberiae excretes honeydew of poor quality for parasitoids. The consequences of these biological traits of D. aberiae for its biological control are discussed. 2019-05-15T10:37:43Z 2019-05-15T10:37:43Z 2018 article acceptedVersion Tena, A.; Nieves, E.; Herrero, J.; Urbaneja, A. (2018). Defensive behaviors of the new mealybug citrus pest, delottococcus aberiae (hemiptera: Pseudococcidae), against three generalist parasitoids. Journal of Economic Entomology, 111(1), 89-95. http://hdl.handle.net/20.500.11939/6243 10.1093/jee/tox307 https://academic.oup.com/jee/article/111/1/89/4708320 en closedAccess electronico
spellingShingle Tena, Alejandro
Nieves, Eliana
Herrero-Schell, Julieta
Urbaneja, Alberto
Defensive behaviors of the new mealybug citrus pest, Delottococcus aberiae (Hemiptera: Pseudococcidae), against three generalist parasitoids
title Defensive behaviors of the new mealybug citrus pest, Delottococcus aberiae (Hemiptera: Pseudococcidae), against three generalist parasitoids
title_full Defensive behaviors of the new mealybug citrus pest, Delottococcus aberiae (Hemiptera: Pseudococcidae), against three generalist parasitoids
title_fullStr Defensive behaviors of the new mealybug citrus pest, Delottococcus aberiae (Hemiptera: Pseudococcidae), against three generalist parasitoids
title_full_unstemmed Defensive behaviors of the new mealybug citrus pest, Delottococcus aberiae (Hemiptera: Pseudococcidae), against three generalist parasitoids
title_short Defensive behaviors of the new mealybug citrus pest, Delottococcus aberiae (Hemiptera: Pseudococcidae), against three generalist parasitoids
title_sort defensive behaviors of the new mealybug citrus pest delottococcus aberiae hemiptera pseudococcidae against three generalist parasitoids
url http://hdl.handle.net/20.500.11939/6243
https://academic.oup.com/jee/article/111/1/89/4708320
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