Frequently asked questions

When is fusarium patch most likely to appear, and which turf types are most at risk?

Fusarium patch (Microdochium nivale) is primarily a cool-season disease, most active during autumn through spring when temperatures range between 0 and 15°C with high moisture and overcast conditions. Fine-textured grasses used on golf greens, bowling greens, and high-specification sports surfaces, particularly bentgrass and Poa annua, are most susceptible. Extended periods of leaf wetness from dew, fog, or light rain without sufficient drying are the primary triggers.

How do I identify fusarium patch in the field versus other cool-season diseases?

Fusarium patch typically presents as small, circular, water-soaked patches that appear yellow-brown to orange-brown, often with a distinctive white-pink cottony mycelium visible at the margins in wet conditions early in the morning. Patches range from 25 mm to 300 mm in diameter and may coalesce into larger irregular areas. The pinkish coloration at the disease margin distinguishes it from dollar spot (which shows straw-coloured spots with hourglass lesions on individual blades) and other cool-weather patch diseases.

What integrated approach works best for fusarium patch management on fine turf?

Reducing leaf wetness, improving air circulation, and avoiding excessive autumn nitrogen are key cultural controls. Preventative fungicide applications should be timed before prolonged wet, cool conditions rather than applied reactively. Rotating between different modes of action is essential to reduce resistance risk. For a tailored fusarium management programme, including IPM strategies, contact the experts at Greenway Turf Solutions.