INDIANA HORTICULTURAL SOCIETY. 343 



louse is in tlie curve or roll, and you may just spray and spray, and the 

 louse works all the same. I was wondering whether burning sulphur 

 under the trees would affect the louse. 



Professor Beach: We can not poison these insects by anything like 

 Paris green. They are sucliers, and get their living like the mosquito. 

 They get the sap of the leaf or plant from underneath. 



Mr. Swaim: I think the secret of conti-olling the aphis with kerosene 

 emulsion is to take it in time. Watch the trees, and as soon as they come, 

 use emulsion, not wait until leaves are closed up. 



Mr. Stine: I sprayed plum trees with everything without doing any 

 good. 



Professor Troop: One word in regard to spraying— just this one thing 

 ought to be borne in mind: if you are going to spray at all, spray early, 

 whether for insects or plant diseases, and especially for plant diseases, 

 spray before the disease shows itself. Do not wait until it gets started; 

 then it is hard to check it. Some ask how to get rid of the current 

 worm. It is the easiest thing imaginable. Take it early when it first 

 appears, and sprinkle with Avhite hellebore. In spraying either for insects 

 or plant diseases, do it early, and then one spraying is worth half a dozen 

 later in the season. 



Mr. Young: How many times do you advise spraying before the buds 

 open and about when? 



Professor Ti-oop: About the time the buds begin to swell. 



Mr. Shoemaker: Would you use any arsenic preparation in Bordeaux 

 mixture? 



Professor Troop: In spraying for curculio, yes, and if for black knot, 

 no. At that season the cvn-culio hibernates and comes out early in the 

 spring. When it first comes out it eats buds and foliage, and if you are 

 going to get it at all with arsenoids you get it then. Simply use Bordeaux 

 mixture for black knot. 



Mr. Hobbs: We will hear next Mr. J. C. Grossman on "The Cherry." 



Mr. Grossman: One of the first conditions in growing the cherry 

 will be the selection of a location. If I was going to plant an orchard 

 of cherries I would select an elevated location with a sandy or gravelly 

 and loam soil; it should be reasonably rich. The cherry requires a richer 

 soil than the peach or plum. I would plant deeply, and it would be better 

 yet if we would subsoil where the trees are to be set. The next requisite 

 would be the trees. Secure good two or three year old trees, see that they 

 are carefully trimmed back to two, three or four buds, and then carefully 



