282 ILLINOIS STATE HORTICULTURAL SOCIETY 



trees should be occasionally carefully examined, and all eggs and young- 

 borers destroyed. The first appearance of injury from this troublesome 

 insect is a puncture lengthwise in the bark, a little above the ground, 

 appearing as if made with a sharp-pointed knife; in this an egg, a little 

 larger than a timothy seed, is deposited, which in a few days hatches on 

 the inside, where the young borer commences its depredation — first 

 eating the soft bark, then the sapwood, upward and downward, and 

 sometimes crosswise, and, where several are in one tree, almost girdle 

 entirely around it. They remain in the tree nearly two years, when they 

 emerge perfect beetles, and soon lay a new supply of eggs, which go 

 through the same process again. The borings they shove out of the 

 the puncture are an easy and sure guide to their lodgment. 



The tent-caterpillar is another injurious insect, which should be 

 removed while young, or, better still, while in the egg-clusters, early in 

 the spring. 



And now, in conclusion, allow me to say that apple growing, as a 

 business for profit, where followed with energy, business tact and industry, 

 has heretofore returned fair profits. Its danger of being overdone in the 

 future is a matter for consideration with future planters. 



