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Uncinula tulasnei

Powdery mildew of maple

Description

Uncinula = Sawadaea tulasnei forms round spots on the top of the leaves, in some cases the entire surface of the leaf blade is covered. This coating consists of a coarse, long-lasting, bright white mycelial network. Since mid-summer, this ectotrophic mycelium has formed conidiophores with microconidia, and to a lesser extent macroconidia. In the autumn, cleistothecia are formed, which open in the spring and ascospores are released from the pockets. In older trees, Uncinula = Sawadaea tulasnei does not harm, it only reduces their aesthetic value, in forest nurseries it can cause a decrease in growth.

Symptom

White coating on the leaves.

Tree Species: Maple, Box elder

Part of a plant- attacked: Leaf / Needle

Pest significance: Less harmful

Pest Category: Fungi

Invasive Species: No

Present in EU: Yes

Last observations

There are a total of 8 observations of the species in the system

Uncinula tulasnei Powdery mildew of maple
Milan Zubrik
Number of votes: 0
Published: 6.7.2024

Uncinula tulasnei Powdery mildew of maple
majo
Number of votes: 0
Published: 7.10.2023

Uncinula tulasnei Powdery mildew of maple
Milan Zubrik
Number of votes: 0
Published: 12.9.2023

Uncinula tulasnei Powdery mildew of maple
Milan Zubrik
Number of votes: 0
Published: 30.7.2023

Uncinula tulasnei Powdery mildew of maple
ak73
Number of votes: 0
Published: 29.7.2022