During the autumn season, there are several lawn disorders that commonly occur. These disorders can affect the health and appearance of the lawn, leading to bare patches and unsightly areas. Two common lawn disorders that are frequently seen during autumn are the Fading out disease and Black Beetle infestations.
The Fading out disease is a fungal disease that affects Kikuyu grass, which is a common grass variety found in South Africa. The disease causes purple spots on the leaves, which eventually turn yellow and die. The runners also die back, leading to bare patches in the lawn. This disease is particularly prevalent during the spring to autumn months, as the cool temperatures and dewy conditions create an ideal environment for the fungus to thrive. To treat this disorder, it is recommended to rake out dead material, cut the lawn closely, and fertilize with TurboGrass 10:1:5 (25) and water well. Additionally, spraying with chlorothalonil fungicide fortnightly can also be helpful.
The Black Beetle, also known as the lawn beetle, is another common autumn lawn disorder. This insect infestation affects many lawn grasses and leads to small dead patches in the turf. White grubs can be found curled up in the soil under these dead patches, and black beetles can be seen on the lawns during their egg-laying period. The spring to autumn months are also a danger period for Black Beetle infestations. To treat this disorder, it is recommended to drench the lawn with carbaryl insecticide and apply TurboGrass 10:1:5 (25) to assist in the treatment of the dead lawn patches.
Overall, it is important to be aware of these common lawn disorders during autumn and take the necessary precautions to prevent and treat them. Maintaining a healthy and well-nourished lawn can also help to prevent the onset of these disorders.