Fire Blight
NEWA is a partnership of New York State Integrated Pest Management, Northeast Regional Climate Center, and Cornell University
Assess fire blight (Erwinia amylovora) blossom blight risk with Cougarblight and infection potential (EIP) assessments. Add your recent streptomycin application date to re-evaluate risk. A trauma blight tool helps track shoot blight symptom development.
Management Guide
| Cycle | Management |
|---|---|
| Shoot blight, rootstock blight and cankers contribute to overwintering inoculum. | Reduce primary inoculum sources by pruning out cankered limbs and branches during the dormant season. Prune and remove shoots killed by fire blight and cankered limbs. Cut shoots out 12 inches below the infected margin. Keep records of the fire blight history in your orchard blocks. Learn how to identify fire blight cankers. Scout orchards for active, oozing fire blight cankers. |