REPORT OF THE STATE ENTOMOLOGIST I905 



83 



Another lot of this wash was made up April 7 and applied to 

 20 appletrees in Mr Shons orchard at Washingtonville. The action 

 was good in this instance and continued for at least 10 minutes. 

 The wash was an orange-red when stirred and the clear liquid had 

 a wine color. An examination April 14 showed that the first tree 

 was fairly well covered and there were no signs of washing. Very 

 little breeding was evident July 13 and September 23 the conditions 

 were very satisfactory. 



Another lot of this wash was made up March 30 and applied to 



17 Bartlett peartrees in Mr McCoun's orchard at Oyster Bay. 

 The action was so mild in this case that the addition of cold water 

 was not necessary to prevent boiling over. At the end of 30 

 minutes the color was a red-orange and there was very little sedi- 

 ment. A lump about the size of one's fist was not reduced. This 

 lot for some reason or other kept clogging the nozzles and gave 

 considerable trouble in this respect. An examination April 15 

 showed that the first tree was pretty well covered and the tops of 

 the other trees skipped though otherwise well sprayed. July 1 1 

 there was some breeding and the same was true September 26. 



Formula 4 



This wash, composed of 25 pounds of lime, 20 pounds of sulfur 

 and i2 T / 2 pounds of sal soda to 50 gallons of water, differs only 

 from formula 3 in being more concentrated. The first lot prepared 

 gave a very good reaction. The mixture rose nearly to the top of 

 the barrel though it was not necessary to add cold water to prevent 

 its boiling over, possibly due in part to a strong, cool wind blowing. 

 The reaction continued for 20 to 25 minutes. There was a con- 

 siderable amount of sulfur which did not appear to be acted upon, 

 possibly 2 quarts and an equal quantity of residue, probably sand. 

 In this instance but 1 1 1 / 2 pounds of sal soda were added because of 

 the limited supply at hand. This wash was applied March 31 to 



18 appletrees in the orchard of Mr McCoun at Oyster Bay. April 

 15 the first four trees were moderately well covered though some 

 twigs were missed on one side. There were no signs of washing. 

 The color of the limbs and branches twice sprayed was grayish 

 white and that of those receiving a single application, lead gray. 

 July 11 the wash was quite apparent and there w as very little breed- 

 ing on tree 2 and some breeding on trees 3 and 4. September 26 

 there was comparatively little breeding on the first four trees and 

 the results may be considered very satisfactory after making allow- 

 ance for conditions. 



