2i8 DISEASES OF THE SWEET PEA 



pecially is this true for the control of 

 fungous diseases. A spore accidentally 

 lodged on a portion of a leaf overlooked 

 by the sprayer is like a fortified city 

 guarded by rusty cannon. 



Difficulties in the Spraying of 

 Sweet Peas. The difficulties in spraying 

 sweet peas is that the average fungicide 

 will not stick. This is especially true 

 where coarse nozzles are used; the liquid 

 in this case collects into large drops and 

 then rolls oif . This difficulty is eliminated 

 by the use of very fine nozzles, since the 

 finer the spray the greater the success. 

 The use of stickers often helps to make 

 the spray liquid adhere better to the foli- 

 age. With the sweet pea the use of soap 

 answers well the purpose of a sticker. 

 Add two to three pounds of soap to about 

 every lOO gallons of the spray mixture 



