Spring Dead Spot

Common Name

Spring Dead Spot

Seasons of Activity


Areas of Plant Infected


Cultural Methods of Control

Balanced nutrition, increase height of cut, reduce thatch levels, improve drainage.

Scientific Name

Leptosphaeria spp

Key Distinguishing Feature

Circular patches of bleached, straw coloured dead grass appear in spring as the dormant grass regrows. Patches are also visible in autumn and winter after a series of unusually cool days or wet, cold weather. Patches are a few cm to 1m in diameter. Patches reappear and expand in the same spot for 3 or more years. After 2 to 3 years, the centres of active patches may remain alive, and the patch takes on a "ring-like" appearance. Roots of affected plants turn dark brown to black and are severely rotted. Regrowth of grass into affected patches is slow and patches may remain barren or fill with weeds.

Spring dead spot is a turf disease that appears as bleached patches in your lawn, ranging from just a few centimetres in size to large patches sometimes over 1m in diameter. The fungal pathogen attacks the roots, stolons and rhizomes of couch grass.

Key Products for Control:

Voltar 500SC - 65mL/100sqm in 10L of water

Voltar 250SC - 130mL/100sqm in 10L of water

Impala - 60mL/100sqm in 5L of water (sprayer only) or 6mL/10sqm in 9L of water (watering can)

Tribeca - 60mL/100sqm in 5L of water
Tombstone Duo - 20mL/100sqm in 4-16L of water
Bumper - 24mL/100sqm in 10L