424 



General Botany 



These figures are still further increased by the losses caused 

 by bacteria and fungi during storage and shipment. When any 

 of these products reach the market, their price is increased in 

 proportion to these losses. 



Control of plant diseases. The control of plant diseases 

 may be said to have begun with the discovery of the efficiency 

 of the Bordeaux spray mixture in 1862. In 1896 the formalde- 

 hyde treatment of oats seed for smut was introduced, and more 



R. F. Poole, N. J. Expt. Sta. 

 Fig. 262. Bean anthracnose. The disease is due to a fungus which 

 attacks all parts of the plant. The fungus is carried over winter in 

 the seeds. 



