Drepanopeziza sphaerioides
Marssonina leaf spot
The fungus causes tiny irregular blackish brown spots on leaves and shoots as well as canker wounds on the green bark of twigs. Infected leaves get dry and fall off prematurely. On the spots are formed spores that infect new leaves and shoots in spring during the wet weather. The fungus was also called Marssonina salicicola.
The fungus causes tiny irregular blackish brown spots on leaves and shoots as well as canker wounds on the green bark of twigs. Infected leaves get dry and fall off prematurely.
Tree Species: Willow
Part of a plant- attacked: Leaf / Needle
Pest significance: Harmful
Pest Category: Fungi
Invasive Species: No
Present in EU: Yes
Pest group: Fungi
Affected part of wood: Sapwood
Depth of damages: Under bark only, Up to 0,5 cm depth, Up to 2 cm depth
The extent of damage: Lokally
Prevalence in Europe: Common
Damaged products: Firewood, Fresh timber logs (water still in the sapwood), Furniture, Lumber, boards and prisms, Wood chips, Wooden house constructions
Roundwood size: Branches and twigs
Wood discoloration: No
Pest subcategory: White-rot
Similar pests
Neonectria coccinea
Gloeophyllum sepiarium
