362 State Horticultural Society, 



on a small part of our orchard, and continuing the use of the liquid 

 on the main part for another season, until I could test the dust for 

 myself. But when we went out to spray the first time the machine 

 and dust worked so perfectly, and it was so plain to be seen that it 

 would be utterly impossible for any machine to make such a fog 

 with water as a carrier, that I concluded right there to drop the 

 liquid and rely on the dust. We sprayed our orchard seven times 

 up to July 10th, when, on account of the difficulty in getting 

 through the orchard with the team, and believing that we had the 

 best of the worms, we quit spraying. As previously stated, the 

 worms got less than one-half of one per cent, of our apples, so that 

 we saved at least ten per cent, more apples than we ever had saved 

 by the liquid process. 



I know that we did thorough work when we used the liquid, 

 and had we continued its use last season we could not have hoped 

 for better than 90 per cent. Knowing that our orchard paid a net 

 profit of $725 per acre, I figure that the dust saved 10 per cent of 

 that more than the liquid would have saved. This, for the six acres, 

 amounts to $435, and is not all. Six sprayings with liquid, the 

 number we found necessary to save 90 per cent., would have cost 

 for labor and material, $237. The seven sprayings with dust cost 

 for labor and material $117, showing a balance in favor of dust of 

 $120, which, added to $435, gives $555 saved by using dust instead 

 of liquid. 



I know we made a very extravagant use of the material, but 

 having cut loose from the liquid after advocating its thorough use 

 four years, I knew our work would be watched by others, and I was 

 determined to make good if it was in it. Most growers using the 

 dust only use half a pound to a ten or twelve-year-old tree. We 

 used a pound, and thereby doubled the expense for material, but as 

 it is impossible to do any damage by using too much. I wanted to 

 be on the safe side and use plenty. The question of expense is a 

 very small matter if you save a good crop. 



To enumerate some of the advantages of dust spray, I would 

 say: 



Our carrier, lime dust, is in itself a very valuable insecticide. 

 We secure a much more thorough distribution. The air takes up 

 our dust and spreads it perfectly on all sides of the fruit and foli- 

 age. Should a heavy rain damage it it is quickly replaced and the 

 bugs headed off. 



It is easier applied ; it is cheaper ; it is more expeditious ; it is 

 more effective; it adheres better than the liquid. There is no burn- 



