ORNAMENTAL HORTICULTURE (2+1)

Problems in lawns

Frost-injury: In cold regions, the grass is injured due to frost. This can be avoided to a great extent if the grass is sprayed with water every evening and in the early morning after frost.

Thatching: Formation of straw like layers of dead stems, leaves and roots of grass is called thatching. It can be controlled by manual removal.

Yellowing: It is more prevalent in wet weather. It is controlled by drenching with copper oxychloride / Dithane M-45 @ 3g/litre or Bavistin 1g/litre.

Earthworms: Affect lawn by depositing their excreta. Cause a circular ring of thin coloured or dead grass. They are controlled by drenching soil with Bavistin @ 1g/lit or Dithane M 45 @ 3g/lit. Oilcakes of neem / Pongamia @ 500g/10 m2 may be applied before rainy season.

Termites: They are controlled by the application of Phoret / Thimet.