Check Root Health in Undamaged Areas for Early Detection

What happens here

Even if areas of your lawn appear green and healthy, it's beneficial to periodically check for grubs, especially if adjacent areas are infested. The presenter demonstrates lifting a section of seemingly healthy, green sod. He shows that while the top looks good, the lack of well-developed roots growing into the subsoil, along with the presence of small worms or grubs (shown at 4:38), indicates an early stage of infestation. This emphasizes that checking under the sod, even if it looks good, is crucial for catching the problem before widespread destruction occurs. In contrast, genuinely healthy sod should have a dense network of roots firmly binding it to the underlying soil.

Goal: Verify root development and detect early grub presence in healthy-looking sod.