FOURTIIENTH AKXi'AL MEETING. 89 



bark so as to make iiiorc tiiorough work of tlie spraxing t\)r 

 the San Jose scale. 



PuGF. Bkittox : Vou can get the mixture where it is 

 needed better if the loose bark is taken oft. Of cotirse, it is 

 almost impossible to get it in under the loose bark. So I thinly 

 it is a good tln'ng to do. 



Till' I'kilSidf.nt : Will Professor Britton tell us whether 

 there is any good way to prevent tiie ravages of the ci]:iple 

 borer? 



pROi^. Brittox : I have not been able to find anything th.al 

 was absolutely efficacious, except digging them out. 



A ]\Iember : I would like to know if there is any device 

 that could be used to wrap around the trunk of an apple tree, 

 at the base of the tree, or any wash or paint that could be 

 used to prevent the ravages of the apple borer. 



Prof. Britton : Quite a number of things have been tried. 

 ]\Ir. Lupton says that whale oil soap is a good thing. Also 

 that ordinary paint is a good thing. But in working against 

 other borers I have used strong arsenate of lead. That sticks 

 on the tree for a long time. At least, it will stay there through 

 one season very nicely. I have not used it against this apple 

 tree borer, but I have often wondered why it would not be 

 effective. 



Mr. Ives : I have been using common coal tar for the last 

 three years on peach trees, and we have only recently found 

 but four or five that had anything like the peach borer on them. 

 And the same is true of some of the apple trees. I think there 

 were no borers found in any" of the young apple trees when 

 we made our last examination. They were principally young 

 trees. 



Mr. Huhbaru: L^ tar injurious to the trees at all .■' 



Mr. Ives: I never saw peach trees making a more thrifty 

 growth, and I do not think it injures apple trees in any sense 

 whatever. It certainly did prevent the peach borer from get- 

 ting in his work. 



Prof. Britton : 'W.v. Chairman, Professor Slingerland 

 tried some experiments with gas tar, and he found from the 

 results obtained at different places, and under various condi- 

 tions, that while in some instances the tar causetl no injury. 



