Natural parasitism of Diaphorina citri Kuwayama (Hemiptera, Psyllidae) nymphs by Tamarixia radiata Waterston (Hymenoptera, Eulophidae) in São Paulo orange groves

The psyllid Diaphorina citri Kuwayama 1908 has become the main citrus pest species in the state of São Paulo, Brazil, after the introduction of the huanglongbing or citrus greening. This study evaluated the parasitism of 3rd, 4th and 5th instar D. citri nymphs by Tamarixia radiata (Waterston, 1922)...

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Main Authors: Paulo Eduardo Branco Paiva, José Roberto Postali Parra
Format: Article
Language:English
Published: Sociedade Brasileira de Entomologia 2012-12-01
Series:Revista Brasileira de Entomologia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000400016&lng=en&tlng=en
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author Paulo Eduardo Branco Paiva
José Roberto Postali Parra
author_facet Paulo Eduardo Branco Paiva
José Roberto Postali Parra
author_sort Paulo Eduardo Branco Paiva
collection DOAJ
description The psyllid Diaphorina citri Kuwayama 1908 has become the main citrus pest species in the state of São Paulo, Brazil, after the introduction of the huanglongbing or citrus greening. This study evaluated the parasitism of 3rd, 4th and 5th instar D. citri nymphs by Tamarixia radiata (Waterston, 1922) in citrus groves under a regimen of regular insecticide applications in ten producing regions: Araraquara, Barretos, Bauru, Botucatu, Franca, Itapetininga, Jaú, Limeira, Lins and São João da Boa Vista. Sixty-nine samples of new branches infested with nymphs of D. citri were collected from 2005 to 2008 in orange groves ranging from 1 to 20 years old, of the varieties Hamlin, Pera, Valencia and Natal. The parasitoid T. radiata is widely distributed in São Paulo orange groves, and was identified in 50 (72%) of the samples, showing a mean parasitism rate of 12.4%. The highest parasitism rate was observed in the "summer" (from January through March), with a mean of 25.7%. Nymphal parasitism was above 90% in two samples. The probable causes of the variations in parasitism of D. citri by T. radiata are discussed.
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spelling doaj.art-84b1ab8800df478a93d2b10cacb95fb62022-12-21T17:50:05ZengSociedade Brasileira de EntomologiaRevista Brasileira de Entomologia1806-96652012-12-0156449950310.1590/S0085-56262012000400016S0085-56262012000400016Natural parasitism of Diaphorina citri Kuwayama (Hemiptera, Psyllidae) nymphs by Tamarixia radiata Waterston (Hymenoptera, Eulophidae) in São Paulo orange grovesPaulo Eduardo Branco Paiva0José Roberto Postali Parra1Universidade de São PauloUniversidade de São PauloThe psyllid Diaphorina citri Kuwayama 1908 has become the main citrus pest species in the state of São Paulo, Brazil, after the introduction of the huanglongbing or citrus greening. This study evaluated the parasitism of 3rd, 4th and 5th instar D. citri nymphs by Tamarixia radiata (Waterston, 1922) in citrus groves under a regimen of regular insecticide applications in ten producing regions: Araraquara, Barretos, Bauru, Botucatu, Franca, Itapetininga, Jaú, Limeira, Lins and São João da Boa Vista. Sixty-nine samples of new branches infested with nymphs of D. citri were collected from 2005 to 2008 in orange groves ranging from 1 to 20 years old, of the varieties Hamlin, Pera, Valencia and Natal. The parasitoid T. radiata is widely distributed in São Paulo orange groves, and was identified in 50 (72%) of the samples, showing a mean parasitism rate of 12.4%. The highest parasitism rate was observed in the "summer" (from January through March), with a mean of 25.7%. Nymphal parasitism was above 90% in two samples. The probable causes of the variations in parasitism of D. citri by T. radiata are discussed.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000400016&lng=en&tlng=enControle biológicopsilídeoCitrus, ectoparasitóide
spellingShingle Paulo Eduardo Branco Paiva
José Roberto Postali Parra
Natural parasitism of Diaphorina citri Kuwayama (Hemiptera, Psyllidae) nymphs by Tamarixia radiata Waterston (Hymenoptera, Eulophidae) in São Paulo orange groves
Revista Brasileira de Entomologia
Controle biológico
psilídeo
Citrus, ectoparasitóide
title Natural parasitism of Diaphorina citri Kuwayama (Hemiptera, Psyllidae) nymphs by Tamarixia radiata Waterston (Hymenoptera, Eulophidae) in São Paulo orange groves
title_full Natural parasitism of Diaphorina citri Kuwayama (Hemiptera, Psyllidae) nymphs by Tamarixia radiata Waterston (Hymenoptera, Eulophidae) in São Paulo orange groves
title_fullStr Natural parasitism of Diaphorina citri Kuwayama (Hemiptera, Psyllidae) nymphs by Tamarixia radiata Waterston (Hymenoptera, Eulophidae) in São Paulo orange groves
title_full_unstemmed Natural parasitism of Diaphorina citri Kuwayama (Hemiptera, Psyllidae) nymphs by Tamarixia radiata Waterston (Hymenoptera, Eulophidae) in São Paulo orange groves
title_short Natural parasitism of Diaphorina citri Kuwayama (Hemiptera, Psyllidae) nymphs by Tamarixia radiata Waterston (Hymenoptera, Eulophidae) in São Paulo orange groves
title_sort natural parasitism of diaphorina citri kuwayama hemiptera psyllidae nymphs by tamarixia radiata waterston hymenoptera eulophidae in sao paulo orange groves
topic Controle biológico
psilídeo
Citrus, ectoparasitóide
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000400016&lng=en&tlng=en
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