8 



Prepare solution just before using. Add the acid to the crystals 

 and then pour on the water. Valuable for treatment of dormant 

 grape vines affected with Anthracnose, application being made with 

 sponge or brush. 



15. CORROSIVE SUBLIMATE. 



{^Fo7- Potato Scab). 



2 ounces corrosive sublimate. 

 15 gallons water. 



Dissolve the corrosive sublimate in 2 gallons of hot water, then 

 dilute to 15 gallons, allowing the same to stand 5 or 6 hours during 

 which time thoroughly agitate the solution several times. Place the 

 seed potatoes in a sack and immerse in the solution for i^ hours. 

 Corrosive sublimate is very poisonous, consequently care should be 

 taken in handling it nor should the treated potatoes be eaten by 

 stock. The solution should not be made in metallic vessels. 



16. FORMALIN. 



{For Potato Scab). 



8 ounces formalin (40 per cent solution). 

 15 gallons water. 



Used for the same purpose as corrosive sublimate, but not poison- 

 ous. Immerse the seed potatoes for 2 hours. 



