Tropical pines have been under introduction trials in Bangladesh since 1961-62 with a view to building up a source of long-fibred pulp. Pathological observations in respect of planted Pines at Forest Research Institute Campus, Chittagong are reported. The etiology and symptoms of needle cast disease of Pinus elliottii Engelm. have been described.

Botryodiplodia theobremae Pat. and Pestalotia macrotricha KI. were mainly isolated from the infected needles. Pathogenicity tests were carried out. The results indicated that both the fungi were responsible for the development of needle cast of P. elliotti, the former having a dominant role. The disease, however, was not a serious threat to the crop and has not been recorded on other species of Pines in the campus.