72 Report of State Board of Horticulture. 



SPRAY no. 11 — formalin. (fOR POTATO SCAB.) 



8 ounces formalin (40 per cent solution). 

 15 gallons of water. 

 Immerse seed potaties for two hours. 

 (Not poisonous.) 



COMBINED FUNGICIDE AND INSECTICIDE SPRAYS. 



SPRAY NO. 12. 



4 ounces of paris green. 



50 gallons of bordeaux mixture. 



SPRAY NO. 13. 

 iy2 pints of arsenite of lime. 

 50 gallons of bordeaux mixture. 



{See Formula No. 3.) 



SPRAY NO. 14. 



li/o pints of arsenite of soda. 

 50 gallons of water. 



(See Formula No. 1.) 



FOR ROSE MILDEW, RED SPIDER, AND PLANT LICE. 



1 pound bar ivory soap. 

 15 gallons of water. 



Apply warnij as it thickens after cooling. 



