Show Treat Potatoes Before Planting Solution of Corrosive Sublimate Sublimate Sublimate mate or Formaldehyde Is Effective Experiments have shown that potatoes potatoes potatoes pota pota- toes can be treated for disease control In the winter while they are dormant with no delay In germination in the spring according to C. C C.- C. L. L Graves Craves plant pathologist at the Kansas Agricultural Agricultural Agri Agri- cultural college Graves Craves therefore recommends that seed potatoes be i treated as soon as practical There have been developed In the past few v 3 years ears two standard treatment treatments treat treat- ments ment for the tile control of ot seed borne diseases of the potato Both are ure equally equal equal- ly efficient In dIsease disease control They are the corrosive sublimate treatment and anel the hot formaldehyde treatment Corrosive Sublimate Treatment I Prepare a solution for the corrosive sublimate treatment by mixing thoroughly thoroughly thor thoro four tour ounces of corrosive sublimate sublimate mate In 30 gallons of water Corrosive Cor sublimate is deadly poison and must be kept away from children and animals It will not Injure the hands hund The sublimate solution will corrode corrode metals Therefore barrels barrel wooden tubs or concrete vats should contain the treatment Potatoes should not be cut before they are treated Bet Best results are obtained when they are left in the solution for one and one one- half hours according to the plant pa pathologist thol The solution should not be used for more then three batches of ot potatoes unless the solution is strengthened each time Corrosive sublimate should I be added at the rate of one one halt half to uve eIghths of an ounce to each su 30 gallons of water after each treatment Hot Formaldehyde Treatment For the hot formaldehyde treatment mix two pints of ot strength full-strength formaldehyde formal In 30 gallons of water Un Unlike like ike the corrosive sublimate treatment this solution does not weaken with use and no addition of ot formaldehyde eh de need need be be added after treatment to maintain the original strength Formaldehyde Formaldehyde For For- de is also a deadly poison The solution quickly dries from the surface of the tubers and the treated seed Is not poisonous The hot formaldehyde treatment requires requires requires re re- quires from three to four minutes In Ina Ina Irta a heated solution 1 4 to 1213 degrees F F. Care should be taken that the tubers do not come In contact with the sides and bottom of the treating vat says say Professor G Graves ra es |