STATE POMOLOGICAL SOCIETY. 63 



the spraying is very detrimental to the foliage later in the season, 

 but is not noticed early in the season, when the tree is growing 

 and the foliage comes out rapidly. This defoliation is due to the 

 effects of the hot sun after sprayinoj. 



This question of spraying during the hot sun is one we need have 

 no hesitation about discarding ; the trouble arising from spraying 

 during the hot sun is very trifling. I think there is no question in 

 the minds of fruit growers as to the advantages of spraying for the 

 codling moth 



Mr. Vinton. I confess tha*: I share in this idea of danger from 

 using Paris green. I made myself sick abed by putting Paris 

 green on my potatoes. I take it for granted that in throwing it 

 into a tree, it is the poison that kills the caterpillar. 



Ans. It takes but a small amount of arsenic to kill the caterpillar. 

 Ques. How does the caterpillar take his first meal? 

 Ans. By boring a hole from the outside of the calyx into the 

 apple. What little he gets in the calyx of the apple is enough to 

 kill him. 



Ques. Suppose there was a man in the tree and the liquid was 

 thrown on him, would it hurt him? 



Ans. I think it would ; I think he had better get out. 

 Ques. This Paris green is insoluble in water. It falls upon the 

 tree, the water dries off and leaves the Paris green in a flaky sub- 

 stance to float in the air, does it not? 



Ans. Yes, the infinitesimal amount that is used. Some of 

 our ablest professors have experimented and given the results of 

 the experiments that prove beyond a doubt that it is a perfectly safe 

 operation. 



Mr. Gilbert. I am cautious about this society recommending 

 the use of a deadly poison in any way. In the use of poisons there 

 is less danger in the form of spraying, than as a powder or flour. 

 We want to reduce it as much as possible — find the minimum 

 amount. 



Prof. MuNSON. When a pound to 250 gallons of water was used 

 and the grass was cut and fed to a horse, no injurious results 

 followed. 



Mr. Gilbert. Certainly I would go sloiu before I would feed my 

 stock on Paris green. If you don't give Nature time to throw it off 

 it must be harmful. I don't want such an impression to go out. 



