Neocosmospora root and crown rot
- Field symptoms of neocosmospora
- Peanut plant infected with neocosmospora (left) and a healthy plant
Has been found in both dryland crops in the Burnett region and in irrigated crops in Central Queensland. Appears to be increasing in importance. Has caused significant losses in some crops.
Roots are rotted, and there is often an extensive dark lesion on the crowns of plants. Affected plants wilt and usually die. Orange flask-shaped fruiting bodies of the fungus commonly develop on infected roots and crowns.
Probably present in many soils, and can be spread in contaminated soil by vehicles, machinery and overland water flows.
Chemical registrations and permits