SciELO - Scientific Electronic Library Online

 
vol.83Zoonosis associated to Rattus rattus and the impacts of the public actions to control the speciesSensibility of isolates of entomopathogenic fungi to solar radiation, ultraviolet rays and temperature author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Arquivos do Instituto Biológico

Print version ISSN 0020-3653On-line version ISSN 1808-1657

Abstract

PIZZATTO, Mariana; PIETROWSKI, Vanda; ALVES, Luis Francisco Angeli  and  RHEINHEIMER, Ana Raquel. Host suitability and fitness-related parameters of Cotesia glomerata L. (Hymenoptera: Braconidae) on different instars of Ascia monuste orseis Godart (Lepidoptera: Pieridae). Arq. Inst. Biol. [online]. 2016, vol.83, e1232013.  Epub May 13, 2016. ISSN 1808-1657.  http://dx.doi.org/10.1590/1808-1657001232013.

The study aimed to adapt the instar of host Ascia monuste orseis to the parasitism of Cotesia glomerata and evaluate the parasitoid performance. Females of C. glomerata were exposed to 2nd, 3rd, 4th and 5th instars larvae of A. monuste orseis , allowing parasitism for two hours. Subsequently, the development of caterpillars that were fed with leaf sections of kale was monitored. The duration of each caterpillar instar, the weight of four days-old pupae, the percentage of parasitized caterpillars and mortality were assessed. Despite parasitoids, the following parameters were assessed: percentage of parasitism; number of parasitoids per host; percentage of emergence, sex ratio; average weight of the pupae, number of parasitoids per caterpillar; period egg-pupae; pupal period; and period egg-adult. The results indicated that the second instar of host A. monuste oreseis is the most suitable for the parasitism of C. glomerata for providing highest percentage of parasitism and a larger number of offspring per host.

Keywords : biological control; larval parasitoid; adaptation of the host; kale leafworm..

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )