152 PLANT DISEASE 



Mr. A. Miles, of Thornley, Cathcart, South 

 Africa, says 



" He noticed in riding through a field that 

 had been planted with mealies, or Indian corn, 

 and was invaded by locusts when the plants 

 were a few inches high, that while most of the 

 field was eaten down there were two strips 

 practically untouched. Afterwards a rain came 

 and the roots of the devoured plants made a 

 fresh growth, and again when the stalks of 

 the uneaten plants had the cobs formed 

 and those that had been eaten gave every 

 indication of still giving a crop, the locusts 

 appeared for the second time, and destroyed 

 all the plants on the ground previously attack- 

 ed, while the mealie plants they first refused 

 to eat still remained immune to this pest." 



What the reason was Mr. Miles does not 

 know, but these are the facts. 



As further evidence, Mr. A. Francis, of 

 Fairford, Cathcart, says 



" There is no question that some vegetation 

 is much more tasteful to, or liable to be eaten, 



