Disease on crop
fungalChestnut Blight on chestnut
Cryphonectria parasitica
The fungus that destroyed the American chestnut population in the early 20th century. Chinese chestnuts and most modern hybrids are tolerant; American chestnut remains susceptible.
- Disease
- Chestnut Blight
- Pathogen type
- Fungal
- Crop
- Chestnut
- Scientific name
- Cryphonectria parasitica
Chestnut Blight on chestnut
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Symptoms on chestnut
- ▸ Sunken orange-brown cankers on trunks and branches
- ▸ Wilting and dieback above cankers
- ▸ Orange spore masses on canker surface during wet weather
IPM controls
- ✓ Plant resistant Chinese chestnut or blight-tolerant hybrids (Dunstan, Sleeping Giant)
- ✓ Mud-pack canker treatment for valuable specimens
- ✓ Hypovirulent strain biocontrol where available
- ✓ Avoid wounding trunks during cultivation
Resistant varieties
Dunstan Sleeping Giant Chinese Chestnut
Other crops affected by chestnut blight
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