Question

Describe the classification oftrees on the basis of their spread.

Answer 1

Study of plant dis­eases in relation to their occurrence (interaction of populations of plants, pathogens and environment) is known as epidemiology. There may be infectious disease and contagious disease. A disease which spreads slowly and is incited by a transmissible pathogen is referred as infectious disease, and that which spreads rapidly is a contagious disease.

Answer 2

Trees come in a wide variety of sizes, shapes and growth habits. The specimens grow in any one of the following ways such as individual trunks, multitrack masses, coppices, clonal colonies, or more exotic tree complexes.

The three basic parameters measured to characterize the size of a single trunk tree includes height, girth, and crown spread.