@misc{misce8d07fe4,
title   = {Biological control of helecoverpa zea (boddie) in field and sweet corn through trichogramma pretiosum riley in the state of sao paulo , brazil},
author = {Parra, José Roberto Postali and Sa, L A N and Zucchi, R A},
year = {1995},
booktitle   = {International Plant Protection Congress}
}