CHAPTER XIV.--THE DISEASES OF COFFEE.

Leaf disease, or attacks of _Hemeleïa Vastatrix_.

Mr. Marshall Ward's report on leaf disease in Ceylon. Leaf disease probably always existed in Mysore. Said to have caused much loss on some estates.

Losses of leaves from other causes commonly attributed to leaf disease. No reason to fear it if land is well cultivated, manured, and shaded. Evidence that shade can control leaf disease.

Bad kinds of shade trees cannot control, but increase leaf disease.

Conditions under which leaf disease is liable to occur in the cases of good soil under good shade trees.

The importance of manure and cultivation with reference to leaf disease. Mr. Graham Anderson's, Mr. Marshall Ward's and Mr. Brooke Mockett's opinions. The Coorg plant not so liable to be attacked as the Chick plant.

The Borer insect.

Borer is worst under bad kinds of shade trees, but can be controlled by good caste trees.

Conditions favorable to attacks of the Borer.

Reasons for thinking that the usual practice of destroying all bored trees is of little use.

The Borer can only be suppressed by adequate shade. Rot, or _pellicularia koleroga_. Aggravated by want of free circulation of air.

Measures for lessening rot. Importance of meeting monsoon with mature leaves on the coffee trees.

Green-bugs. None in Mysore, Receipt for killing them used on Nilgiri Hills.