Gray Leaf Spot

Pyricularia grisea

1 host plant · Fungal

Last updated

Gray Leaf Spot can show up on landscape plants, producing visible damage that ranges from leaf spots and discoloration to branch dieback depending on severity. Early detection gives you the best management options.

Start with sanitation: remove and dispose of affected material as you find it. Thin dense growth to improve air circulation, and redirect irrigation away from foliage. If the condition persists despite cultural adjustments, your local Extension office can help identify the pathogen and recommend targeted treatments.

Quick Reference

Agent Type
fungal
Causal Agent
Pyricularia grisea
Host Plants
1
Spread
wind
Favorable Conditions
cool wet conditions; fall infection period

Host Plants (1)

Sources & References

  • WSU HortSense
Data Maturity
Baseline Extension data. Expert review underway.