• Whastsapp

Causal organism: Homo Sapien

Host Grass Types
Most grass types
Soft, spongy, moisture retentive, 
disease-prone turf

Background information

  • Thatch is the layer of partially decomposed organic matter situated below the green leaf material of the turf and above the soil itself
  • Thatch can hinder root development by creating a moisture retentive sponge that discourages deep development
  • Thatch provides an ideal environment for turf pathogens and insect pests
  • Thatch becomes hydrophobic when it dries out and it can cause water holding problems

Management strategy to reduce the likelihood of occurrence

  • Control should be via an integrated approach of cultural practices and sensible product use
  • Aerate to encourage soil microbial action
  • Scarify as appropriate to remove dead plant material
  • Apply topdressing to dilute thatch
  • Use correct levels of nutrition. Excessive nitrogen will encourage thatch
  • Use the correct types and rates of nutrition
  • Wetting agents to aid water management
  • Use soil biostimulants to encourage microbial break-down of thatch
  • Box off clippings to limit build-up of dead plant material in soil
  • Improve drainage
  • Refrain from overwatering

Preventative Strategy (Guidance Only)

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