First Report<i>of Fusarium subglutinans</i>f.<i>sp. pini</i>on Pine Seedlings in South Africa

Abstract

Viljoen. A., Wingfield, M. J., and Marasas. W. F. 0.1994. First report of Fusarium subglurinans f. sp. pini on pine seedlings in South Africa. Plant Dis. 78:309-312. A study of fungi responsible for root rot of Pinus parula seedlings in a forest nursery yielded Fusarium subglutinans f. sp. pini and F. oxysporum. F. s. pini was isolated most frequently from diseased seedlings and proved to be the most virulent fungus in pathogenicity tests conducted on germinated seed and 2-mo-old seedlings. Inoculation of 3-yr-old trees with F. s. pini yielded symptoms reminiscent of pitch canker. This is the first report of F. s. pini causing root disease of pine seedlings and is also the first record of the fungus in the Southern Hemisphere.