© 1962 by Institute of Chartered Foresters
Fomes annosus (Fr.) Cke. and other Root-rotting Fungi in Conifers on ex-Hardwood Sites
Forestry Commission Research Branch
The development of root rot and butt rot caused by Fomes annosus in conifer crops planted on ex-hardwood ground is slower than that in second-rotation conifer plantations. This is apparently due to competition from other fungi, notably Artnillaria mellea. Excavations on ex-hardwood sites showed that F. annosus was present in conifer thinning stumps, and that transference of infection occurred, causing butt rot. The investigations confirmed the need for stump protection of all conifer crops planted on ex-hardwood sites. Short accounts are given of the activity of A. mellea and Polyporus schweinitzii, the other two important root-rotting fungi on these sites.