A study of 500 blue pine seeds, each collected from Bhurban and Kuzagali, revealed the occurrence of seven fungi and one bacterium on the sample seeds by using the agar plate test method. The Bhurban sample was found to have 80% and 20% infection in non-treated and treated (HgCl2) seeds respectively, while the Kuzagali sample had 100% in the non treated and 3.3% infection in the treated seeds. The fungi isolated from non-treated seeds comprised: Diplodia pinea, Fusarium moniliforme, Penicillim candense and Rhizopus nigricans whereas those from treated seeds included; Aspergillus flavus, A. janus, Rhizopus nigricans and R. oryzae. Rhizopus nigricans was the predominant fungus occurring on non-treated as well as treated seeds. Xanthomanas campestris was the only bacterium isolated from the non-treated seeds.