Neotropical Entomology (2001) 30, 493-494

Luis F.A. Alves, Meire C. Brancalhão and Dalva L.Q. Santana (2001)
Ocorrência de Baculovirus em Lagartas de Perigonia lusca (Fabr.) (Lep., Sphingidae) no Brasil
[Occurrence of baculovirus on Perigonia lusca (Fabricius) (Lepidoptera, Sphingidae) larvae in Brazil]
Neotropical Entomology 30 (3), 493-494
Abstract: A large number of dead Perigonia lusca (Lepidoptera, Sphingidae) larvae were observed in "Paraguay tea" (Ilex paraguariensis) plantations in the West of Paraná State. Live insects were collected from these fields, maintained on "Paraguay tea" leaves in laboratory and observed daily. The dead larvae were macerated and the resulting suspension was observed under microscope. Occlusion bodies typical of the Baculoviridae family were observed. The pathogenicity of the virus was confirmed by following procedures outlined in Koch's postulates. This is the first register of a virus in Perigonia lusca in Brazil.

Foi constatada em lavouras de erva-mate (Ilex paraguariensis) na região produtora de Cascavel, estado do Paraná, elevada mortalidade de lagartas de Perigonia lusca (Lepidoptera, Sphingidae). Os insetos foram coletados no campo e levados para o laboratório, onde permaneceram sob observação até sua morte. As lagartas mortas foram maceradas, sendo verificada, sob microscopia fotônica a presença de corpos de oclusão na suspensão obtida. Folhas de erva mate foram imersas nessa suspensão e oferecidas a lagartas sadias. Estas manifestaram a sintomatologia típica de infecção viral, sendo então comprovada sua patogenicidade através do postulado de Koch. O vírus foi identificado como pertencente à família Baculoviridae, sendo este o primeiro registro da ocorrência de um vírus infectando esta espécie de inseto no Brasil.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Perigonia lusca	Ilex (crop)	Brazil (south)