94 THE CONNECTICUT POMOLOGICAL SOCIETY. 



Record of zi'ork — Work was begun ]\Iarch lo. The weather 

 was cool and clear. Four barrels of solution were used cover- 

 ing 264 four-year old peach trees and plum trees. The formula 

 used w^as : 



Lime 30 pounds. 



Sulphur 30 pounds. 



Salt 15 pounds. 



Water 50 gallons. 



March nth, a heavy rain fell all day so that no work was done. 

 March 12th, the rain of March nth had no apparent effect 

 on the coating of spray on the trees. Some solution made 

 March loth, kept forty-eight hours, could not be used because of 

 the crystals clogging the pumps. Work was continued in this 

 way until April 14th, at which time some of the plums were in 

 full bloom, and all buds were started. Xo harm came from 

 spraying the trees after the buds were started except in cases 

 where they were unfolded enough to expose the young leaves, 

 in which case they were burned considerably. 



April 4th, spraying was done during a light rain which kept 

 the trees continually wet. This was not satisfactory, as the 

 material did not stick to the trees. 



TJie Oregon For inula — In Oregon, copper sulphate has been 

 added to the sulphur, lime and salt sohttion for the purpose of 

 making it a fungicide as well as an insecticide, hence the sul- 

 phur, lime and salt solution plus copper sulphate is known as 

 the Oregon solution or Oregon formula. The material used 

 was the same strength as before (20 pounds of sulphur, 25 

 pounds of lime, 15 pounds of salt), with 4 pounds of copper 

 sulphate added to it. When the copper sulphate was added to 

 the other material in a concentrated solution, it formed a heavy 

 black precipitate like coffee grounds, which caused considerable 

 trouble in straining. A more dilute solution of the sulphate 

 did not give this trouble. This solution was not materially 

 different in application from the other formula, excepting that 

 it was somewhat thicker. In effects this wash seems to be no 

 different from the other. It is quite probable that the addition 

 of copper sulphate to the sulphur, lime and salt does no harm, 

 and whether it improves it as a fungicide or not, our experiments 

 have not vet demonstrated. 



