62 State Horticultural Society. 



Mr. Goodman. — I have used dust for four years in an extensive 

 orchard, but I am still at loss to know just how far it is a success. We 

 sprayed thoroughly last year over four hundred acres, but the frost 

 killed all the blossoms and we stopped spraying-. We cover the trees 

 and even the ground as with a light snow. This year we have been over 

 the orchard four times to date, we began before the buds opened. But 

 we are not sure of the results, but the liquid is no more sure. I think 

 enough of it however, to continue. We must use one or both for good 

 results. 



The Ozark hills are too rough for the liquid spray and we can not 

 get water, so we use the dust. The cold and rain have so afTected the 

 bloom this year that I can see no difference between the sprayed and 

 the unsprayed plots. I am sure the dust will help if used at the proper 

 time, with proper materials, etc., but we are often uncertain of the time 

 of the development of insects and fungi, and in a large orchard it is 

 difficult to do every thing on time. There is no certainty, but we should 

 continue to experiment in this line. We can not set dates, or say a week 

 later, etc. Go every morning if it is moist and dust from four o'clock 

 to eight, it takes a week to get over the orchard and then we begin again. 

 Positive results I can not give, but the spraying has helped to prevent 

 the increase of germs and insects, so as a preventive it is a good thing. 



Sometimes a spot sprayed goes as good fruit as the sprayed, but 

 we can not conclude from that, only the conditions are different anfl 

 such as to give good fruit any way. We have used only lime with no 

 poisons and some such plots have proven as good as where we used 

 the fungicides. At least I am satisfied that it is worth while. Our 

 orchards being in good condition when others are not, shows the spraying 

 is preventive. 



Question — What formulas do you use? 



L. A. Goodman. — We get our materials from Leggett Bros., New- 

 York City, they can supply Paris Green and also the dry Bordeaux in 

 five pound packages. We also use Hammond's Grape Dust for fungus- 

 on the apples. Lime alone is also good, 40 pounds of it can be slaked 

 with lye water made from two pounds of concentrated lye dissolved in 

 water. Sometimes we use sulphur in addition and we can now use the 

 Bordeaux powder made by Dr. Bird's formula. 



T. H. Todd. — To make Bordeaux according to Dr. Bird's plan seems 

 to be impractical for a large orchard. I would like to know about my 

 rule and if it answers the purpose. If you take sulphate of copper, 

 powdered fine and mixed it in the lime, would it have the same effect as 

 Bordeaux. Bordeaux mixture is one product and not two. In a dust 



