62 



AGRICUVrURE OF MAINE. 



manufacturer differ in different casks, but home-boiled solu- 

 tions will vary considerably even when the same amounts of 

 material and time of cooking are employed. 



The following is adapted from Cordley's tables for dilution : 



Hydrometer reading. 



Number of gallons water for one 

 gallon solution. 



The advantage of the concentrated home-boiled solution is 

 that it can be made when other w^ork is not pressing and stored 

 in casks or barrels for future use. When so stored the barrels 

 should be entirely filled to exclude air. If this is not possible, 

 or when a part has been withdrawn for use and the balance is 

 to be held for a considerable time it should be protected from 

 the air with a thin oil coating of paraffin oil or other heavy oil. 



Arsenate of lead should not be added until the solutions are 

 diluted and ready for use. 



A word more and I am done. What is to be the attitude of 

 you orchardists in the light of our present knowledge? Will 

 it be one of hesitation or timidity? If you have sprayed in 

 the past are you going to lay aside your spray pump for the 

 present? If you have been thinking of spraying for the first 

 time next season are you going to give up the idea and wait 

 until experiments have shown you something still more definite? 

 If you do, let me assure you most emphatically that you can 

 make no greater mistake. Remember that scab, leaf spot, fruit 

 spot, pink rot, black rot, sooty blotch and canker ; codling moth, 



