Lophodermium aucupariae

Lophodermium_aucupariae

Lophodermium aucupariae

Lophodermium aucupariae is a species of fungus that primarily infects rowan trees. It belongs to the genus Lophodermium within the family Rhytismataceae. This fungus is known to cause a specific type of needle blight on rowan trees, leading to defoliation and potential damage to the tree's health.

Description

Lophodermium aucupariae typically manifests as small, dark-colored spots on the needles of infected rowan trees. As the infection progresses, these spots may enlarge and coalesce, eventually causing the needles to turn brown and fall off. In severe cases, repeated infections can weaken the tree and make it more susceptible to other stressors.

Life Cycle

The life cycle of Lophodermium aucupariae involves both sexual and asexual reproduction. The fungus produces spores that are dispersed by wind or rain, allowing it to infect new host trees and continue its life cycle. In favorable environmental conditions, such as high humidity, the fungus can spread rapidly within a rowan tree population.

Management

To manage infections of Lophodermium aucupariae, it is important to practice good cultural care for rowan trees. This includes proper pruning to improve air circulation, avoiding overhead watering, and removing and destroying infected plant material. Fungicides may also be used as a preventative measure, especially in nurseries or areas with high disease pressure.

Prevention

Preventing the spread of Lophodermium aucupariae involves maintaining overall tree health and reducing stress factors that can make trees more vulnerable to infection. Regular monitoring for signs of disease, such as needle discoloration, can help detect infections early and prevent further spread within a tree population.