Main diseases and insect pests of lawn and their control

Brown spot disease is one of the most common diseases and insect pests in lawn planting, and it is also one of the most common diseases and insect pests of Kentucky bluegrass in Huanghuai basin of China. If infected with this kind of disaster, it will lead to a large area of lawn dying.

Characteristics of brown spot disease: when brown spot disease occurs, the lawn will be flooded at first, and then the lawn will become dark and green. If you don't care at this time, it will eventually lead to the lawn drying up and shrinking.

The second kind, powdery mildew.

Powdery mildew mainly occurs in Kentucky bluegrass, tall fescue and Bermuda grass when the light is insufficient.

Characteristics of powdery mildew: white mildew spots appear on leaves, which will gradually expand in the later stage. At first, they were white, and then they gradually turned into grayish brown. If you don't pay attention, a layer of white powdery substance will appear on the lawn surface.

Prevention and control methods:

1. Plant disease-resistant varieties.

2. When applying fertilizer, we should balance the amount of various fertilizers to prevent flooding and water accumulation, and pay attention to ventilation and reduce humidity.

3. Spray pesticides properly.