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Removal Of Moss & Thatch In A Lawn

Difference between Moss and Thatch

Thatch is a layer of both living and dead grass shoots, roots and stems which lies between the grass blades and the soil on your lawn. A build-up of too much thatch is caused when turf produces organic debris quicker than it can be broken down.

Mosses are small flowerless plants which have no true roots, stems or leaves hence why they can grow in areas which most other plants cannot. There are over 12,000 different species of moss found throughout the world found on all types of surface including lawns. Moss is a sign that the environment is not correct for your lawn e.g. Ph inbalance. Dead moss turns to thatch.

Should you have any thatch?

It is important to note that having some thatch on grass is not a bad thing as it is a good protector and can provide good insulation against temperature extremes and differences in soil moisture.

We need enough thatch to prevent injuries from falls on sports surfaces such as rugby pitches. A small amount of thatch can be beneficial as it helps prevent damage from ball impact. However too much thatch can cause many problems.

Why should you remove Moss and Thatch?

Moss competes with the grass blocking light and restricting airflow which in turn prevents the growth of grass. And of course as mentioned above dead moss turns to thatch.

Thatch can cause extensive root damage by heating up and cooling down too quickly. Thatch also restricts airflow which can encourage fugal diseases. Thatch can slow surface drainage so holds too much water during rainy periods and acts like a sponge which can lead to root rot. It also encourages earth worms.

On sports surfaces thatch or moss can create a spongy surface which reduces ball bounce and slows ball roll. It can lead to pitch mark problems on golf greens.

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