Black fruiting bodies in stem cankers

Botrytis cinerea
( Gray mould )

Didymascella thujina
( Cedar Leaf Blight )

Fusarium spp
( Hypocotyl rot )

Phoma spp.
( Hypocotyl rot )

Phomopsis spp
( Phomopsis canker and foliage blight )

Rosellinia minor
( Rosellinia blight )