Oliveira, A.M., Pellegrin, M., & Silva, S.P. 1971 Ensaio de controle á pérola-da-terra (Eurhizococcus brasliensis Hempel, 1922) em videira. [Studies to control ground pearl (Eurhizococcus brasiliensis Hempel, 1922) in grape.]. Anais do I Congresso Brasileiro de Fruticultura, Volume II. ~ 795 pp.

Notes: [Conference held in Campinas, São Paulo, Brazil on July 12-16, 1971.] Four insecticides and soil cultivation were studied experimentally to control ground pearl.