18 Department Circular 263, 11. S. Dept. of Agriculture. 



When this insecticide is used during the growing season, precaution 

 should be taken to make the application during the cool part of the 

 day. Injury to fruit and especially to foliage is likely to result from 

 its use during extremely high temperatures. 



Very thorough work should always be done in spraying to control 

 the scale. To insure a complete coating of the trees with the spray 

 solution, it is best to spray one side of a tree row at a time with 

 rods, using one man in the tower and another on the ground. It is 

 well to take advantage of the wind, spraying with the wind behind 

 the mist of spray. It is almost impossible to wet the small tips 

 when spraying against the wind. ^Vhen the wind changes, the oppo- 

 site sides of the tree rows should be sprayed. Most growers, when 

 spraying according to this method, in reality spray two-thirds of a 

 tree row from each side, thereby making sure that no spots are 

 missed. 



ADDITIONAL COPIES 



OF THIS PUBLICATION MAY BE PROCURED FROM 



THE SUPERINTENDENT OF DOCUMENTS 



GOVERNMENT PRINTING OFFICE 



WASHINGTON, D. C. 



AT 



o CENTS PER COPY 



PURCHASER AGREES NOT TO RESELL OR DISTRIBUTE THUS 

 COPY FOR PROFIT.— PUB. RES. 57, APPROVED MAY 11, 1922 



V 



