36 



under a faucet and thoroughly washed with running water. Those 

 that were selected were not washed, but the soap mixture was allowed 

 to dry in order to determine whether any injury would result to the 

 vitality of the buds. Scale-infested apples were treated in a similar 

 manner. 



The seedlings were budded with the fumigated and treated buds 

 by experienced workmen on the afternoon of the treatment and the 

 morning following. The experimental trees were located in the cen- 

 ter of a large peach block, the rows extending from east to west. 



Check trees were budded with untreated buds at the west end of 

 the rows, while those buds that were treated with the soap mixture 

 without washing were at the opposite end. 



Mr. Cole writes, under the date of September 2, 1902: "The seed- 

 lings run a little under size and the weather rather dry, for our soil, 

 so that the stocks did not work quite as freely as usual. Morning of 

 September 1 we had a soaking rain." 



The trees were examined July 23, 1903, and the following tables 

 give the results of the treatment: 



Record of Kalamazoo peach buds fumigated with hydrocyanic-acid gas. 



Lot 



No. 



Formula. 



Number 

 of trees 

 budded. 



Number 

 of buds 



set. 



Percent- 

 age of 

 buds set. 



1 



1 ouncfe cyanide 



Check 



938 



105 



1,085 



1,050 



731 



79 



749 



705 



78 

 75 



2 







3 



i ounce cyanide 



67 



Record of Wheeler's Late peach buds treated ivith whale oil soap mixtures. 



Formula. 



2 pounds per gallon 



Do 



Check 



1 pound per gallon . 

 Do 



Check 



Further treat- 

 ment. 



Number \ Number 

 of trees I of buds 

 budded. set. 



No 



Washed . 



No 



Washed 



964 



961 



55 



652 



Percent- 

 age of 

 buds set. 



It will be noted that the peach buds were not injured by fumigation 

 or treatment with the soap. The fact that a greater percentage of the 

 buds failed at the west end of the rows is due to other causes, such as 

 the character of the ground and climatic conditions. 



THE EFFECT OF THESE TREATMENTS ON THE SAN JOSE SCALE. 



The fruit used in the tests was badly infested with the scale and in 

 most cases many young lice were present. After the fumigation or 

 treatment it was placed in paper sacks, which were labeled and 

 removed to the office at Columbus, where the following records were 

 made: 



