Biological characteristics of Trichogramma pretiosum and Trichogramma acacioi (Hym.: Trichogrammatidae), parasitoids of the avocado defoliator Nipteria panacea (Lep.: Geometridae), on eggs of Anagasta kuehniella (Lep.: Pyralidae)
Braz. arch. biol. technol
;
48(1): 7-13, Jan. 2005. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-398305
RESUMO
The objective of this investigation was to study Trichogramma pretiosum and T. acacioi (Hymenoptera Trichogrammatidae), parasitoids of the avocado defoliator Nipteria panacea (Lepidoptera Geometridae) on the eggs of the alternative host Anagasta kuehniella (Lepidoptera Pyralidae) aiming to use them for biological control of this pest in avocado orchards. The cubic model presented better adjustment for duration of the life cycle of T. pretiosum and T. acacioi with the host A. kuehniella which shows that development rate of these species increases with temperature within the range tested. The number of individuals of both Trichogramma species emerged per egg from this host was higher than one. The quadratic model was significant for viability of T. pretiosum and T. acacioi. This parameter was more affected by extreme temperatures and higher emergence rates of adults of both parasitoids species occurred at temperatures of 20, 25 and 30°C.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Tipo de estudo:
Estudo prognóstico
Idioma:
Inglês
Revista:
Braz. arch. biol. technol
Assunto da revista:
Biologia
Ano de publicação:
2005
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Federal de Viçosa/BR
/
Universidade Federal do Espírito Santo/BR
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