SPRAYING 205 



which is causing so much loss to sweet peas 

 in England has gained a strong foothold in 

 this country, yet prominent growers and 

 seedsmen strenuously deny the existence 

 of this disease here. The anthracnose is 

 another serious disease, and yet few grow- 

 ers have a first hand knowledge of its ex- 

 istence. The time is rapidly coming when 

 the sweet pea like every other important 

 crop will have to be sprayed. The grower 

 who fails to do so will be crowded out be- 

 cause of competition with others more 

 careful. It is true that spraying is no 

 pleasant pastime for the grower; neverthe- 

 less, it is a necessary evil, if evil it may be 

 called. 



Spraying has two aims : to kill the insect 

 and animal pests, and to control fungous 

 diseases. The substances which are used 

 for the one are without effect on the other. 



Insecticides. All animal and insect 



