Fusarium Ear Blight
A range of Fusarium species cause head blight in cereals
Look out for:
- Parts of the ear dying and turning white
- General discolouration of the ear
- Wet, warm weather
- Delayed harvest
The main symptoms are the death of part of the ear ranging from a single spikelet to a large part of the ear.
Yield losses can be high, often in the order of 15-40%.
The mechanism whereby fusarium species infect the ear isn’t entirely understood but is likely to be due to the direct transfer of spores from crop debris to the ear through a combination of wind and rain.
The disease is favoured by warm, wet weather, especially heavy storms, during flowering.
Economic losses can be severe through a combination of reduced grain size, poor grain quality