Agrostis capillaris · Grass
Dollar spot: Improve air circulation by mowing regularly and avoid excessive nitrogen fertiliser in warm weather.
Fusarium patch: Ensure good drainage, reduce thatch buildup, and avoid overwatering to prevent fungal growth.
Leatherjackets: Apply biological control products containing nematodes in autumn when soil temperatures are above 5°C.
Chafer grubs: Monitor for adult beetles and consider biological nematode treatments if infestation is severe.
Algae growth: Improve drainage and aeration by scarifying the lawn and reducing shade where possible.