HOW TO DESTROY INSECTS. 63 



touched. The leaves of cherry-trees are preferred by 

 them to all other fruit-trees. 



Coal-tar a Remedy for Caterpillars. Wherever 

 these get on or under the bark of trees they may be 

 prevented as follows : Sub the base of the young trees 

 every two years with coal-tar. A ring of this liquid 

 painted on each tree will have the desired effect, as the 

 caterpillars dread it like the plague. 



THE green cabbage-worm can be successfully de- 

 stroyed with hot water. 



Heat to a temperature of 200 or more, and apply 

 through the rose of a common watering-pot, and the 

 worms will be crucified. A temperature of even a few 

 degrees lower will still destroy the worms and not injure 

 the plants. 



This method of destruction is easier and more 

 efficient than the use of salt, carbolate of lime, and 

 other substances usually employed. 



A Pennsylvania ladv having heard of the noxious in- 

 fluence of carbolic acid on various species of insects 

 that infest gardens, she was induced to try its effects 

 upon the eabbaye-worm. 



For this purpose she procured a cake of soap that had 

 been strongly scented with the acid, and, having made a 

 quantity of suds therefrom, she transferred it to a water- 

 ing-pot, and in the early part of the day, when the 



