Performance of Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) rearing on fruits of two guava varieties under forced infestation

Abstract: Anastrepha fraterculus (Wiedemann) is dominant in the main guava’s crops. Guavas are an important host of A. fraterculus for providing a good performance for the immature and high reproductive capacity. We evaluated the performance of A. fraterculus in two guava varieties related...

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Autores principales:	Raga,Adalton, Sousa,Ester Marques de, Louzeiro,Léo Rodrigo Ferreira, Silva,Sara Braga e, Sanches,Juliana
Lenguaje:	English
Publicado:	Sociedad Chilena de Entomología 2020
Materias:	Infestation indices Insecta physicochemical parameters Psidium guajava
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-89942020000400601
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spelling	oai:scielo:S0718-899420200004006012021-06-09Performance of Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) rearing on fruits of two guava varieties under forced infestationRaga,AdaltonSousa,Ester Marques deLouzeiro,Léo Rodrigo FerreiraSilva,Sara Braga eSanches,Juliana Infestation indices Insecta physicochemical parameters Psidium guajava Abstract: Anastrepha fraterculus (Wiedemann) is dominant in the main guava’s crops. Guavas are an important host of A. fraterculus for providing a good performance for the immature and high reproductive capacity. We evaluated the performance of A. fraterculus in two guava varieties related to the fruit physicochemical composition under laboratory conditions. Mature-green guavas of "Tailandesa" (red pulp) and "Kumagai" (white pulp) varieties were exposed to forced infestation by A. fraterculus in laboratory. An additional sample of each variety was submitted to physicochemical analysis. Similar quantities of pupae per fruit (128.5 - 156.0) and pupal viability (85.9% and 87.5%) were obtained per variety, but "Kumagai" produced significantly more pupae of A. fraterculus per fruit mass (1000.6 pupae/kg). Pupal weight was higher in "Tailandesa" (115.3 mg/10 pupae) than "Kumagai" (82.6 mg/10 pupae). Significant positive correlations were obtained between pupae per fruit or kg versus adults per kg for both varieties. A positive correlation was observed between pupae per fruit and pupae per kg of "Kumagai" guavas. Peel and pulp firmness were inversely correlated with pupae per fruit and pupae per kg. Weight of 10 pupae of A. fraterculus was correlated with fruit weight of "Tailandesa" guavas. The multivariate analysis PCA showed a relationship between pupae per kg and peel firmness, pulp firmness, Ratio, soluble solids, and titratable acidity in "Kumagai" guava. This explains the higher infestation index pupae per kg and better reproductive performance of A. fraterculus in "Kumagai" guava.info:eu-repo/semantics/openAccessSociedad Chilena de EntomologíaRevista chilena de entomología v.46 n.4 20202020-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-89942020000400601en10.35249/rche.46.4.20.06
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Infestation indices Insecta physicochemical parameters Psidium guajava
spellingShingle	Infestation indices Insecta physicochemical parameters Psidium guajava Raga,Adalton Sousa,Ester Marques de Louzeiro,Léo Rodrigo Ferreira Silva,Sara Braga e Sanches,Juliana Performance of Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) rearing on fruits of two guava varieties under forced infestation
description	Abstract: Anastrepha fraterculus (Wiedemann) is dominant in the main guava’s crops. Guavas are an important host of A. fraterculus for providing a good performance for the immature and high reproductive capacity. We evaluated the performance of A. fraterculus in two guava varieties related to the fruit physicochemical composition under laboratory conditions. Mature-green guavas of "Tailandesa" (red pulp) and "Kumagai" (white pulp) varieties were exposed to forced infestation by A. fraterculus in laboratory. An additional sample of each variety was submitted to physicochemical analysis. Similar quantities of pupae per fruit (128.5 - 156.0) and pupal viability (85.9% and 87.5%) were obtained per variety, but "Kumagai" produced significantly more pupae of A. fraterculus per fruit mass (1000.6 pupae/kg). Pupal weight was higher in "Tailandesa" (115.3 mg/10 pupae) than "Kumagai" (82.6 mg/10 pupae). Significant positive correlations were obtained between pupae per fruit or kg versus adults per kg for both varieties. A positive correlation was observed between pupae per fruit and pupae per kg of "Kumagai" guavas. Peel and pulp firmness were inversely correlated with pupae per fruit and pupae per kg. Weight of 10 pupae of A. fraterculus was correlated with fruit weight of "Tailandesa" guavas. The multivariate analysis PCA showed a relationship between pupae per kg and peel firmness, pulp firmness, Ratio, soluble solids, and titratable acidity in "Kumagai" guava. This explains the higher infestation index pupae per kg and better reproductive performance of A. fraterculus in "Kumagai" guava.
author	Raga,Adalton Sousa,Ester Marques de Louzeiro,Léo Rodrigo Ferreira Silva,Sara Braga e Sanches,Juliana
author_facet	Raga,Adalton Sousa,Ester Marques de Louzeiro,Léo Rodrigo Ferreira Silva,Sara Braga e Sanches,Juliana
author_sort	Raga,Adalton
title	Performance of Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) rearing on fruits of two guava varieties under forced infestation
title_short	Performance of Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) rearing on fruits of two guava varieties under forced infestation
title_full	Performance of Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) rearing on fruits of two guava varieties under forced infestation
title_fullStr	Performance of Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) rearing on fruits of two guava varieties under forced infestation
title_full_unstemmed	Performance of Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) rearing on fruits of two guava varieties under forced infestation
title_sort	performance of anastrepha fraterculus (wiedemann) (diptera: tephritidae) rearing on fruits of two guava varieties under forced infestation
publisher	Sociedad Chilena de Entomología
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-89942020000400601
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Performance of Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) rearing on fruits of two guava varieties under forced infestation

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