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Pseudomonas Blossom Blast and Dieback

Pseudomonas syringae

4 host plants

Last updated

Data Coverage 3 of 6 dimensions
Causal Agent
Host Plants
Symptoms
Management
GDD Threshold
Regional Notes

Pseudomonas causes blossom blast and shoot dieback on flowers and young shoots in spring. This bacterial disease spreads in cool, wet weather. Remove infected tissue promptly. Improve air circulation around plants. Avoid overhead watering and apply copper fungicides preventively during vulnerable periods. Monitor your plants closely and implement integrated management strategies. Prompt removal of infected material helps limit disease spread.

Protect from frost using a variety of methods including overhead irrigation or wind machines. Prune Asian pear cultivars in summer.

Quick Reference

Causal Agent
Pseudomonas syringae
Host Plants
4

Management

Cultural Controls

  • Protect from frost using a variety of methods including overhead irrigation or wind machines.
  • Prune Asian pear cultivars in summer.
  • Remove and destroy infected tissue.

Host Plants (4)