STATE HORTICULTURAL SOCIETY. 201 



the south side to protect the trees iu the summer. I believe if 

 our trees were protected in the summer there would be no dan- 

 ger from bark bursting. I had trees called the Summer Golden 

 Sweet. The body of the tree stood so that in the hottest part of 

 the day the rays of the sun were direct upon it. I noticed 

 this hardening process going on for a year or two, and in the 

 fore part of the summer I saw the leaves were turning yellow. 

 I went and put up some siding to protect the body of the tree, 

 and it lived for twenty years after that. I left it there summer 

 and winter. The bark became loosened, and it grew over. The 

 tree finally got healthy on that side; and T have no question in 

 my own mind that the cause of the injury in the first instance 

 was in consequence of the extreme heat of the sun in the summer. 

 I have trees nearly a foot in diameter, with large limbs, which 

 lay under the direct rays of the sun; and I think they would be 

 injured if that was the cause of the trouble, for the bark is more 

 tender than on the body of the tree. Again, it is seen that in the 

 summer that portion of the tree that is not shaded by the foliage 

 will be injured, and those portions that are shaded always escape. 



In regard to this use of the London purple for the codling moth, 

 or the use of arsenic, I don't see how you can reach them. This 

 moth works in the nis:ht, and stings the apple during its early 

 formation; and how are you to reach the codling moth with poi- 

 son when it merely stings the apple? We don't know that the 

 moth eats anything. Anything that eats the arsenic or London 

 purple, it will destroy it. 



Gen. Le Due. Or anything that hides in the bark. 



Mr. Tuttle. The moth operates in the night. It is a sure and 

 certain remedy for anything that feeds upon the leaf. 



Mr, Underwood. I would ask Gen. Le Due how the kerosene 

 works ? 



Gen. Le Due. It affects those insects that destroy the tree. 

 My earliest experience with it was in 1856. I bought the first 

 barrel of kerosene that came here for lighting and for oiling pur- 

 poses. I took it to Hastings to use in a mill for oiling purposes. 

 I had some plum trees. I requested one of the men to bring over 

 some turpentine, and instead of that he brought a can of kero- 

 sene. I tried some of the kerosene, and found that wherever it 

 touched one of those insects it doubled up and Avas dead in a 

 moment. So, instead of sending it back I used the kerosene and 

 destroyed all the insects there were there. I experimented with 

 other insects. This was distilled kerosene, of the cannel-coal, or 

 26 



