Wet weather can have a significant impact on lawns across Australia, with both positive and negative effects. On one hand, wet weather can provide much-needed moisture to promote healthy growth and lush greenery in lawns. However, prolonged periods of wet weather can create ideal conditions for the development of fungal diseases that can damage and even kill the grass. Thus, it is essential to understand the potential impact of wet weather on lawns and take necessary steps to prevent and treat issues that may arise.
Overwatering
Overwatering can lead to waterlogged soil and root rot, causing the grass to become yellow and wilted. Additionally, wet weather can increase the lawn's susceptibility to disease and insect infestations. If a lawn is already receiving enough moisture from rainfall, additional watering can lead to waterlogged soil and root rot, which can cause the grass to become yellow and wilted. This can also make the lawn more susceptible to disease and insect infestations. Overwatering also promotes the growth of weeds, which can choke out the grass and create unsightly patches in the lawn.
Growth of Fungi
Wet weather can also create an ideal environment for the growth of fungi, such as Pythium blight and Fusarium patch, which thrive in cool, damp conditions. These diseases can cause circular patches of dead or dying grass, which can spread quickly and become difficult to control. The warm and humid conditions during wet weather are perfect for fungal growth, and the damage caused by these diseases can be severe, leading to brown patches in the lawn.
Growth of Weeds
Wet weather in Australia can lead to an increase in weed growth in lawns as consistently damp soil can cause dormant weed seeds to germinate. Weeds can be unsightly and compete with grass for nutrients, water, and sunlight. To prevent weed growth, it is important to mow the lawn regularly at the appropriate height, which shades the soil and reduces sunlight exposure to weed seeds.
Keeping the lawn healthy and well-fed also aids in competition with weeds for resources. Manually removing weeds is an effective method, as long as the entire root system is removed to prevent regrowth. Pre-emergent herbicides can be applied to prevent weed seed germination, these are best applied by a professional lawn care technician to ensure the right product is used for your turf variety and weed variety. These measures can help prevent weed growth during wet weather and maintain the overall health and appearance of the lawn.
Water Drainage
Wet weather can also make it difficult for the lawn to drain properly, leading to standing water and puddles. This not only makes the lawn unsightly but can also lead to the growth of algae and other water-loving organisms, which can be harmful to the lawn. Wet soil can also compact, making it difficult for the grass roots to access air and nutrients, which can stunt growth and weaken the lawn.
Conclusion
While wet weather can provide much-needed moisture to promote healthy growth and lush greenery in lawns, it can also cause damage to lawns in Australia. The issues caused by wet weather include overwatering, the growth of weeds, the development of fungal disease and poor drainage. To prevent and treat these issues, proper lawn care practices such as monitoring water intake, ensuring proper drainage, and applying fungicides at the first signs of disease are essential.