Question

The process of removing a layer of dead and decaying organic debris and stems from the top layer of grass is known as:

• A. Scraping
• B. Dethatching
• C. Spiking
• D. Raking

Hint:

Regular dethatching helps maintain healthy turfgrass by improving air, water, and nutrient penetration.

Answer 1

The Correct Option is B

Dethatching eliminates the layer of dead and decaying organic matter (stems, roots, leaves) that forms on the soil surface under grass. This accumulation impedes the efficient delivery of water, nutrients, and air to the grass roots.
Scraping (A) involves the physical removal of soil or debris, but is not specifically for thatch.
Spiking (C) creates small holes in the lawn to enhance aeration.
Raking (D) removes loose debris but is often ineffective against compacted thatch. Therefore, dethatching is the correct method for removing the layer of dead organic debris from grass.