Soil-borne pathogens

Armillaria in gardens in England

Armillaria causes root rot in many tree species. Although most attention in scientific research is paid to forestry, considerable damage also occurs in gardens. Drakulic & al. reported that the great majority of root rot in English gardens is incited by Armillaria mellea. Very many plants are susceptible. Especially Ligustrum appeared highly susceptible. Also nonwoody hosts were found. No infections were found for Buxus sempervirens, Calocedrus decurrens, Clematis, Pseudotsuga menziesii, Ailanthus altissima, Hedera helix, Tilia, Mahonia, Tamarix, Robinia pseudoacacia and Sambucus nigra. Based on other studies Acer negundo and Juglans hindsii seem also to be resistant.

Drakulic & al. in Plant Disease,