INJURIOUS INSECTS. 



349 



This destructive insect is not content to injure the apple tree 

 alone, but is equally ready to attack the elm, and not infrequently 

 attacks cherry, plum, and other fruit and forest trees. 



REMEDIES. The many old-time remedies must all sink before 

 the use of the arsenites, just as advised for the codling moth. 

 In fact, fighting these insects gave us the knowledge of our best 

 remedy for the apple-worm. As soon as the blighted leaves 

 show that the enemy has come, the poison should be applied. 

 It is easy, safe, sure, and what more can we desire? Here too, 

 if the trees are in bearing, " we kill two birds with one stone," 

 the codling moth and the canker worm. 



Tent Caterpillar. Clisiocampa Americana, Harr. Family, 

 Bombycidce. Order, Lepidoptera. These familiar insects, so sure 

 to fix their silken tents within our trees, come just at the right 

 time to do the greatest harm, and should never be left to their 

 miserable work of despoilation. 



NATURAL HISTORY. These pretty moths (Fig. 32), brown in 



color, the female a little 

 lighter and larger than the 

 male, with two light bands 

 running obliquely across the 

 fore wings, appear in June 

 and July. For the past four 



years I have taken the first 

 of these during the first week 

 of July, and those reared in 

 confinement came forth at 

 the same time. These moths, 

 unlike the codling moth, are 

 attracted by lights, and very 

 frequently fly into our rooms 

 during our warm July evenings. After pniring, the female moths 



Fio. 32. 



