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Psorocampa denticulata

Psorocampa denticulata Schaus (Lepidoptera: Notodontidae) is a pest of Eucalyptus species (Myrtales: Myrtaceae) in Brazil. The pre-pupa stage of this species is present in the soil surrounding infested trees for up to 6 mo during the dry season and can be collected and stored in large numbers. The p...

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Bibliographic Details
Published in:The Florida entomologist 2015-09, Vol.98 (3)
Main Authors: Zanuncio, Jose Cola, Vinha, Germano Lopes, Ribeiro, Rafael Coelho, Fernandes, Bianca Vique, Kassab, Samir Oliveira, Wilcken, Carlos Frederico, Zanuncio, Teresinha Vinha
Format: Article
Language:English
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Summary:Psorocampa denticulata Schaus (Lepidoptera: Notodontidae) is a pest of Eucalyptus species (Myrtales: Myrtaceae) in Brazil. The pre-pupa stage of this species is present in the soil surrounding infested trees for up to 6 mo during the dry season and can be collected and stored in large numbers. The potential use of P denticulata pupae as an alternative host for rearing the parasitoid Palmistichus elaeisis Delvare & LaSalle (Hymenoptera: Eulophidae) was tested in the laboratory. Up to 24-h-old P denticulata pupae (787.40 [+ or -] 78.29 mg) were individually exposed to twenty 72-h-old P elaeisis females for 48 h. These exposed pre-pupae were individually transferred to a glass tube for the emergence either of parasitoid progeny or of the adult lepidopteran. The parasitism and emergence rates of P elaeisis from P denticulata pupae were 100 and 90%, respectively. The life cycle (egg to adult) was 22.22 [+ or -] 0.49 days, and the number of progeny of this parasitoid was 734.55 [+ or -] 54.56 per host. We concluded that this generalist parasitoid could be mass reared on P denticulata pupae and released as part of an integrated program to manage lepidopteran pests in eucalyptus plantations.
ISSN:0015-4040
1938-5102