As the temperatures in some parts in England are exceeding 30 degrees, its crucial to understand heat and drought stress symptoms and how you can manage their effects on your turf. Turfgrass generally suffers from these two stress symptoms from the environmental shift of high temperatures. Both stresses can often be hard to manage but by understanding the stresses you can mitigate the effects and maintain your turf this summer.
Heat stress, obvious by the name is the response of the turfgrass due to high temperatures, this can be seen on the surface of the grass. Heat can cause scorch, this occurs when your grass turns yellow to brown in patches due to the sun and heat. A heat stress patch does not mean that your turf is ruined, it often can be in a dormant state which means it shuts down to conserve water and nutrients. This can have an impact on the aesthetic appearance of the course, but generally the issue lies down to the turf not getting much moisture and water below the ground known as drought stress.
Drought stress, is the reaction of the grass having insufficient available water, as given in the name, drought, is the dry period in the natural climate change, from the lack of precipitation that results in a water shortage. In terms of turfgrass, we need to understand what is happening under the ground as it’s all about water management. Therefore, it’s important to know what is needed to replace the moisture that has evaporated from the soil and transpiration from the plant itself. A useful tool is a moisture meter (Soil Moisture Portable Kits – Delta T (delta-t.co.uk)
to determine the exact moisture level. As a general rule of thumb a soil moisture content between 15-25% is sufficient moisture for optimum growth. A moisture content in single figures would be considered to cause related drought stress issues on the turf.
How can you retrieve your turf from these symptoms?. Wetting agents help heat and drought stress as it penetrates available water below ground in which the plant (turf) can uptake the moisture thought the root system.
HITAS offers a range of wetting agents that can help your turf this summer, view our product on our website or contact for more information down below.