188 ANNUAL REPORT OF THE Off. Doc. 



»ives 3,500 trees. An average tree of 20 to 40 years of age takes 

 .~i gallons at least; thai means L6,500 gallons. Now any machine 

 that will throw that amount of material through 4 nozzles is better 

 calculated to put out fires than spray trees. 



Let us see what the capacity of a machine is and we will take one 

 of die best, one run by liquid gas with which you can maintain a 

 uniform pressure up to 125 pounds. We will equip this machine 

 with 8 nozzles instead of 4. We will run a uniform pressure of 100 

 pounds and the utmost that can be forced through the small cap 

 veiinorels (and these are the only ones making a perfect mist) is 

 100 gallons in 20 minutes; that means 300 gallons per hour or 3,000 

 gallons in 10 hours (any man who has properly handled an 8 or 10 

 foot extension pole, thinks 10 hours constitutes a legitimate day's 

 work), less than one-fifth of wdiat this man calls for. 



Why do editors permit such nonsense to get into their columns? 

 It does incalculable harm, encouraging the beginner to hurry over 

 his trees, wasting his time, money and doing his trees but little 

 good. It is an utter impossibility for any orchardist to spray 10 

 acres per day and do a good job with one machine; and any machine 

 that does more is better calculated for a road sprinkler or a fire 

 extinguisher. When you see an advertiser guaranteeing his sprayer 

 to spray from 50 to 100 acres per day, pass it by as worthless for 

 your purpose. 



What are the results of spraying? It is claimed that any man 

 who has more than 10 per cent, of wormy fruit has not properly 

 sprayed. This I believe to be practically true. To see if this is 

 true, let us investigate the results obtained by careful experiments 

 as carried on at different stations. 



By the Geneva Experiment Station, several orchards were sprayed 

 at different localities, widelv distributed, to render results more 

 conclusive, as environments often affect results. Number of trees 

 sprayed with sulphur washes were 7,325, consisting of apple, pear, 

 peach and plum. The washes used were the boiled sulphur wash 

 and the self-boiled lime, sulphur, caustic soda wash. 



Results on peach. These trees were infested with San Jose' Scale. 

 The self-boiled wash was used. Careful examination on October 1st 

 failed to reveal any living scale. For peach leaf curl, with excep- 

 tion of a few terminal buds, the sprayed trees were practically free 

 from curl, whereas the unsprayed trees were much defoliated and 

 the trees w r ere in unthrifty condition. 



Pear. Applied from 9th to 20th of April, the sulphur Wash 

 destroyed the blister mite, also lichens, and left the bark clean, and 

 foliage set after June 15th was still adhering October 20th, w r hile 

 the trees unsprayed were nearly bare. 



Apple. On 276 trees. 30 to 50 years old, spraying was begun with 



