Two new species of <Emphasis Type="Italic">Leptographium</Emphasis> from <Emphasis Type="Italic">Dryocetes authographus</Emphasis> and <Emphasis Type="Italic">Hylastes cunicularius</Emphasis> in Norway
1.Department of Microbiology,University of Stellenbosch,Stellenbosch,South Africa;2.Norwegian Forest and Landscape Institute,?s,Norway;3.Forestry and Agricultural Biotechnology Institute,University of Pretoria,Pretoria,South Africa