Plant Diseases & Pests, 
T HE following account deals with the problems 
of diseases and pests of economic plants 
in Malaya under three headings : — Fungoid 
and Bacterial Diseases, Insect Pests and Methods of 
Inspection and Control. 
FUNGOID AND BACTERIAL DISEASES. 
The study of fungoid and bacterial diseases in 
their true relation to extensive cultivation is of com- 
paratively recent date, and it is only during the last 
two decades that the losses accruing to cultivators 
have been realised and approximately estimated. 
The extent of the losses caused by crop diseases is 
illustrated by the following figures given by various 
authorities in America. 
(1) 
California Vine Disease 
in 1892 
G. $10,000,000 
(2) 
Wheat Rust in United 
States 1898 
67,000,000 
(3) 
Wheat Rust in Illinois in 
1885 
1,875,000 
(4) 
Potato Late Blight in 
New York 1904 
10,000,000 
(5) 
Potato Blight in United 
States (annual) 
36,000,000 
