The causal agent of fusarium is Microdochium nivale and most cool season grasses can be affected, particularly during periods of cool, humid weather in late autumn. It is seen as very rapidly developing circular patches of 25-50mm in size and the leaves become brown and mushy. Tan blotches are first observed on the tips of leaves. It is more prevalent in established lawns that are burdened with large amounts of thatch.
- The formation of this disease is discouraged by high levels of sulphate and potash as well as acidic conditions. A balanced fertilizer regime such as regular applications of Turf Gold fertilizer therefore is generally effective against the establishment of Fusarium.Apply this product every 10 -12 weeks at 25gms/m2 or 2.5kgs per 100m2.De-thatch the lawn in autumn