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Influence of Season on Organisms Infecting Untreated Southern Pine Stakes. E. Richard Toole, Assistant Technologist, Forest Products Utilization Laboratory, Mississippi State University, State College 39762; Phytopathology 61:1013-1014. Accepted for publication 23 March 1971. DOI: 10.1094/Phyto-61-1013.

Untreated southern pine stakes were planted in soil in the fall, winter, spring, and summer, and isolations were made from them each month for 11 months after planting, and at the end of the test 24, 21, 18, and 15 months after planting the fall, winter, spring, and summer series, respectively. Bacteria and Trichoderma viride were the most prevalent organisms isolated from the belowground parts of stakes planted in the fall, spring, and summer, but were recovered less frequently from stakes planted in the winter. Bacteria were isolated most frequently from the aboveground parts of the stakes. Soft rot and wood rot fungi were isolated occasionally.

Additional keywords: Pinus sp., Chaetomium globosum, Lenzites saeparia, Schizophyllum commune.