As the summer sun intensifies, turfgrass managers across sports grounds, golf courses and landscaped estates face a familiar opponent: seasonal stress. With high temperatures, reduced rainfall and increased foot traffic, summer places intense pressure on playing surfaces. Maintaining championship-standard playing conditions demands both planning and flexibility. With a proactive strategy, supported by flexible, proven products and FACTS-qualified advice, summer doesn’t have to spell struggle.

Understanding the stressors

Summer stress is multifaceted. Golf greens and tees are subject to some of the harshest conditions in turf management:

• Heat stress: Prolonged high temperatures increase evapotranspiration and can trigger turf dormancy or decline.

• Drought: Low rainfall and restrictions on irrigation can limit moisture availability at the root zone.

• Wear and tear: Increased traffic from golfers, trolleys and maintenance equipment during peak seasons causes compaction and physical damage.

Each stressor intensifies the others, placing significant physiological strain on the turfgrass. Swift identification allows greenkeepers to deploy targeted strategies that carry greens and tees through the summer intact.

Biostimulant backing

Integrating biostimulants like Aminaid and ONYX into your programme can bolster turf resilience. These products support plant metabolism and root development under heat and drought stress. Aminaid, rich in amino acids, improves nutrient uptake and stimulates beneficial soil microbes, while ONYX enhances stress tolerance and enriches soil biology, creating a more resilient turf-root interface.

Smart nitrogen nutrition

Summer nutrition should prioritise steady, non-aggressive feeding. Products with controlled-release nitrogen (CRN) such as those using Nutrilong V90 or slow-release technology, like COMMAND 14-2-8, release nutrients gradually, reducing the risk of scorch and sustaining growth without forcing it. These technologies also reduce leaching risk, aligning with environmental goals.

Water efficiency with wetting agents

Effective water use is essential in summer. Wetting agents like BESTWET and RESOLUTE improve infiltration and moisture distribution. For areas where spraying is difficult, SATUGRAN granular wetting agent offers a practical alternative. Applied as a 1-2mm granule, it can lie dormant then activate with rainfall or irrigation to enhance soil hydration. Used strategically, these agents help extend watering intervals and reduce localised dry patch.

Mechanical and cultural practices

Don’t underestimate the power of good practice:

• Aeration alleviates compaction, improving root respiration and water movement.

• Height of cut adjustments reduce plant stress. Consider raising the height slightly during extreme conditions.

• Traffic management through rotation or use of portable paths protects worn zones.

Observation and timing

The best managers observe and respond. Regular turf inspections allow for early detection of stress symptoms (such as wilting, discolouration and patchiness) and timely intervention. Applying treatments in the early morning or late evening helps reduce volatilisation and maximise efficacy.

Resilience is a year-round project

Summer challenges are inevitable, but turf decline is not. Resilience is built through a year-round commitment to soil health, balanced nutrition and mindful management. GreenBest’s Velvit Fertiliser range and expert advice can help professional turf managers to tackle seasonal stress with confidence and come through summer with turf that’s not just surviving but thriving.

For more on GreenBest fertilisers, visit www.greenbest.co.uk