How to avoid damage from bacterial and fungal cankers

摘要

Cankers in nursery stock species are characterised by the death of cambium (inner bark) tissue of woody stems, branches or twigs, causing them to sink in.They can completely girdle the stem, disrupting the vascular system so that shoots beyond the canker wilt and die through a lack of water. Large numbers of smaller cankers can also disrupt vascular systems enough to cause gradual wilting and shoot death.