Ascospora Dieback

Seimatosporium lichenicola

14 host plants · Fungal

Last updated

Data Maturity Structured

This profile synthesizes data from multiple published sources. Expert field review is in progress.

Young shoots blacken and die back as cankers form on limbs, reducing vigor. This fungal disease affects stressed plants. Improve growing conditions and remove affected shoots promptly.

Practice clean cultivation in the growing season. Practice early season primocane control. Remove infected material promptly and improve growing conditions to limit pathogen spread. Good sanitation, adequate spacing, and proper irrigation practices reduce disease pressure over time.

Quick Reference

Agent Type
fungal
Causal Agent
Seimatosporium lichenicola
Host Plants
14
Favorable Conditions
Warm wet conditions; spore dispersal via rain splash or overhead irrigation.

Management

Vulnerability Window

Spring through fall in warm/wet conditions (May-October).

What Triggers Infection

Warm wet conditions; spore dispersal via rain splash or overhead irrigation.

Cultural Controls

  • Practice clean cultivation in the growing season.
  • Practice early season primocane control.

Host Plants (14)