SUMMER MEETING. 109 



adding a little of that I think it will stay on the tree better than Paris 

 green and lime. 



With reference to the curculio, we cannot reach it with any spray 

 or with any poison; the cnrcnlio eats very little ; theoretically, we 

 could kill it if we could reach every particle of fruit ; but that is im- 

 possible ; we cannot stay upon one tree long enough to do that, and 

 the result is if we reach 50 per cent of curculio we are doing remark- 

 ably well. The formula for the arcenate of lead is: 



Arcenate of soda, four ounces ; acetate of lead, 11 ounces. 



That makes 15 ounces to be put in 100 gallons of water. 



Put that into a bucket of water, dissolve it thoroughly and let it 

 stand over night, and during that time the solution will be formed. It 

 is possible to buy arcenate of lead in the drag store, but it is expensive, 

 and it is better to make it as I have indicated. It will not kill a canker 

 worm half grown, neither will it kill the curculio in many instances. 



Mr. Moseley — I would like to know if there is any danger to human 

 life or health in using this spray, that is, while using it ? 



A. It is just as injurious to breathe arcenate of lead as to breathe 

 arcenate in any other form, but this is kept in water and you do not 

 breathe it. 



Mr. Evans — What effect will that spraying on the peach trees have 

 on the bees'? 



A. That is like the question that came up yesterday about bees 

 puncturing grapes. 



It has never been satisfactorily demonstrated one way or the other. 

 Some people claim that if we spray while the trees are in bloom that it 

 will injure the bees. My impression is that there is no danger, and it 

 is ray impression that there is no danger in spraying trees while in full 

 bloom ; some think that by spraying while in bloom they ruin the bloom 

 so that it ruins pollination. 



Mr. Miller — This spraying has become a great affair ; some recom- 

 mend and some condemn it. I have used Paris green and London 

 purple, and this year I have tried a new thing which is very simple; 

 those chemicals are difficult to understand. A >ear ago I purchased 

 some tobacco stems and some tobacco dust; I put about ten pounds 

 of tobacco stems in a barrel and put in about a half a barrel of water ; 

 I took a bucket fall of it that day — it was about the color of pretty 

 fairly colored coffee — and I put this in twice the quantity of clear 

 water, and I went out with that to my tree, not with a fine spray, but 

 a fan spray, and I scattered that tree over and over and I think I hit 

 every bloom, and I went over the whole row; and then a rain came 

 and I was afraid it washed the most of it off, and I went out when 



