The plant is notably susceptible to honey fungus. It is known to be susceptible to honey fungus. Plants in this genus are notably resistant to honey fungus. This plant is also known to be attacked by honey fungus. Initial symptoms of honey fungus infection include dieback or shortage of leaves in spring. Armillaria mellea, commonly known as honey fungus, is a basidiomycete fungus in the genus "Armillaria". Commonly known as the marsh honey fungus, it prefers growing in sphagnum bogs with mosses. This encyme is isolated from the honey fungus "Armillaria mellea". Honey fungus takes over the plant and eventually kills it. In infected soils, honey fungus can cause instant death. The marsh honey fungus has a boreal and montane Eurasian distribution. On conifers honey fungus often exudes a gum or resin from cracks in the bark. Among the pests that affect the genus "Prunus" is honey fungus. However, honey fungus must be thoroughly cooked as they are mildly poisonous raw. Honey fungus can grow on living, decaying, and dead plant material.