Biological characteristics of Trichogramma maxacalii (Hymenoptera: Trichogrammatidae) on eggs of Anagasta kuehniella (Lepidoptera: Pyralidae)
Braz. j. biol
; 63(4): 647-653, Nov. 2003. tab, graf
Article
in English
| LILACS
| ID: lil-355894
Responsible library:
BR1.1
ABSTRACT
Individuals of two populations of Trichogramma maxacalii (Hymenoptera Trichogrammatidae) were collected from eggs of Euselasia apisaon (Lepidoptera Riodinidae), a lepidopteran defoliator of Eucalyptus, in plantations in the states of São Paulo and Minas Gerais, Brazil. This study investigated the sex ratio, number of parasitoids per egg, and longevity of individuals of these two populations of T. maxacalii, when this parasitoid was reared receiving eggs of the factitious host Anagasta kuehniella (Lepidoptera Pyralidae) in different periods after emergence, and with or without honey. Sex ratio of T. maxacalii varied from 0.44 to 0.60, and was affected by the interaction between populations, availability of food (honey), and length of time in which the parasitoid stayed without host eggs after their emergence. The population of T. maxacalii collected in São Paulo produced a larger number of individuals per egg of the host A. kuehniella and lived longer when fed.
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Ovum
/
Hymenoptera
/
Lepidoptera
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
Braz. j. biol
Journal subject:
Biology
Year:
2003
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Viçosa/BR
/
Universidade Federal do Espírito Santo/BR