Winter Meeting. 219 



Haven a fruit g^rower told me that he was afraid that this process 

 would burn up the arsenic or the sulphate of copper, as well as the 

 lime itself. I used it, sulphate of copper^ the same way in solution in 

 the ratio of 8 ounces sulphate of copper dissolved in four quarts of 

 water on lo pounds rock lime. I believe now that he was right ; where 

 I dusted with this a large proportion of apples were wormy, but where 

 I dusted last year (once) and three times this summer with one 

 pound Paris Green or London Purple to 20 pounds of the copper and 

 lime preparation above described not five per cent, were wormy and 

 not five per cent, fell off. I look for yet better results next year. 



In a bulletin of the Department of Agriculture (Farmers' Bulletin 

 No. 127) I see that arsenate of lead can be bought at 10 cents per 

 pound in dust form to be mixed with lime dust. This may be just 

 what we need. Let us try all things and hold fast to that which is 

 good. It has been demonstrated that Paris Green or London Purple 

 mixed with lime dust has been effective as on insecticide ; that pow- 

 dered sulphate of copper and lime dust has been effective as a fungicide 

 and that these two mixed form an effective means to head off our 

 insect and fungoid enemies. Add to this ashes, sulphur, tobacco dust, 

 potash, arsenate of lead as above mentioned and a number of dust 

 forms that have bareh^ been tried and we can muster an effective 

 force that will be irresistible. I have for two years and will 

 again appeal to our professors of chemistry to make an earnest effort 

 to perfect the different dust formulas as they have made effort to 

 perfect the liquid formulas. 



Mr. Butler. — I want to say that I have had a little experience with 

 the dust spray this season and I am not satisfied with the results. I 

 find that the time when the dew is on the leaves is the best time to 

 use the dust spray, for I don't believe a dust spra}^ amounts to any- 

 thing unless there is some moisture to catch the dust. That has been 

 my experience. I have heard it advocated that it makes no difference, 

 but I want to say that I think it does. I want to say that I am not 

 satisfied with the results, and I believe in spraying and in thorough 

 spraying. I don't believe in spraying once, but I believe in spraying as 

 many as six or seven different times, and I believe in my experience that 

 the liquid spray will give the best success and the best results. 



Secretary Goodman. — I want to give a little experience with the 

 dust spray. I want to say before I begin that I don't think that the 

 dust spray is equal to the liquid spray. I must say that in the begin- 

 ning because I have not tested it long enough to say that it is as 

 good or as some have said here that it was better. I have asked men 

 that have had a good deal of experience with it. Professor Stinson and 



