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Anais da Escola Superior de Agricultura Luiz de Queiroz

versión impresa ISSN 0071-1276

An. Esc. Super. Agric. Luiz de Queiroz vol.47 no.2 Piracicaba  1990

http://dx.doi.org/10.1590/S0071-12761990000200003 

ARTIGOS ARTICLES
ENTOMOLOGIA ENTOMOLOGY

 

Biologia comparada de Nusalala uruguaya (Navás, 1923) (Neuroptera; Hemerobiidae) alimentada com diferentes espécies de afídeos. I. Fase de larva*

 

Comparative biology of Nusalala uruguaya (Navás, 1923) (Neuroptera; Hemerobiidae) fed with different aphid species. I. Larval stage

 

 

B. SouzaI; J.C. MatioliII; A.I. CiociolaI

IDepartamento de Fitossanidade/ESAL, Cx.Postal 37 - 37.200 - Lavras, MG
IIEmpresa de Pesquisa Agropecuária de Minas Gerais - EPAMIG, Cx.Postal 176 - 37.200 - Lavras, MG

 

 


RESUMO

A fase larval do predador Nusalala uruguaya (Navás, 1923) alimentada com pulgão-preto-dos-citros Toxoptera citricidus (Kirk), pulgão-da-couve Brevicoryne brassicae (L.) e pulgão-do-picao Dactynotus sp. foi estudada, em condições de laboratório à 25 ± 2°C, UR de 70±10% e fotofase de 14 horas. A espécie de presa consumida afetou a fase larval do predador, influenciando a duração e a viabilidade de cada instar, a largura da cápsula cefálica, o peso e o tamanho de suas larvas. Dactynotus sp. foi a espécie mais consumida e que propiciou o melhor desenvolvimento larval, sendo que T. citricidus acarretou 100% de mortalidade no primeiro instar. As larvas de N. uruguaya somente se alimentaram de pre-ovos e larvas da sua própria espécie.

Termos para indexação: hemerobiídeos, predador, controle biológico, pulgões, Dactynotus sp., Toxoptera citricidus, Brevicoryne brassicae.


ABSTRACT

The biology of the immature stages of the brown lacewing Nusalala uruguaya (Navás, 1923) was studied under laboratory conditions of 25 ± 2°C temperature, 70 ± 10% RH and photophase of 14 hours, using aphids of the species Toxoptera citricidus (Kirk), Brevicoryne brassicae (L.) and Dactynotus sp. as diets. Prey species affected brown lacewing larval stage development, as indicated by the length and viability of each larval instar, the head capsule width, and the weight and the length of the larvae body. Dactynotus sp. was the most consumed species and gave the best insect development whereas T. citricidus caused 100% mortality during the first instar. Brown lacewing larvae fed only on live aphids and showed a canibalistic behavior eating eggs and larvae of its own species.

Index terms: hemerobiids, predator, biological control, aphids, Dactynotus sp., Toxoptera. citricidus, Brevicoryne brassicae.


 

 

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

 

 

AGRADECIMENTO

Ao Dr. Enrique V. González Olazo, Fundación Miguel Lillo, Miguel Lillo, San Miguel de Tucumán, República Argentina, pela identificação de N. uruguaya.

 

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Entregue para publicação em: 21/04/89
Aprovado para publicação em: 15/01/91

 

 

* Parte da Tese apresentada pelo primeiro autor para obtenção do titulo de Mestre em Entomologia pela Escola Superior de Agricultura de Lavras-MG.