or THE FAEM AND GAKDEIS'. 



151 



patent nostrums and compounds, which are continuously 

 offered to the public as perfect ^' Bark-lice extinguishers," 

 and which never mention this important fact. 



One case was reported to the American Agricul- 

 turist" a few years ago, by the owner of a Pear Tree 

 badly covered with this Bark-louse. Painters were at 

 work painting the house, and in a fit of desperation he 

 took a brush and painted the tree from the ground to the 

 end of the smallest branch, expecting of course to kill it. 

 Much to his sur23rise, the tree pushed its shoots as readily 

 as ever, and was perfectly free from the insect. Another 

 case was reported in the same journal of the efficacy of 

 Crude Petroleum, used in the same manner on young 

 Apple trees. These however may be regarded as desperate 

 cases, and are only given as hints. 



THE APPLE-TREE TENT-CATERPILLAR. 

 {Clisiocampa Americana, Harr.) 



What orchardist in the older States of the Union is 

 not familiar with the white web-nests of this caterpillar? 

 As they glisten in the rays of the spring sun before the 

 trees have put on their full summer dress, these nests, 

 which are then small, speak volumes of the negligence 

 and slovenliness of the owner of the orchard, and tell more 

 truly than almost any thing else why it is that he fails 

 and has bad luck with his apple crop. Wherever these 

 nests abound one feels morally certain that the borers, 

 the Codling-moth, and the many other enemies of the 

 apple tree, have full play to do as they please, unmolested 

 and unnoticed by him whom they are ruining. 



The small, bright and glistening web, if unmolested, is 

 soon enlarged until it spreads over whole branches, and 

 the caterpillars which were the architects, in time become 



