INSECT PESTS AND DISEASES. 147 



Bands of cart grease, or that with an equal propor- 

 tion of Stockholm tar, should be put round the trunks 

 at some convenient height from the ground, com- 

 mencing in the last week in September or the first in 

 October. The females crawl into the grease and are 

 there held fast. The bands should be examined at inter- 

 vals, removing what moths are caught, and renewing the 

 grease as it gets dry. Some recommend placing the 

 bands at four feet from the ground, but one foot would 

 leave less space for egg-laying. Tar or other sticky 

 preparation applied directly to the bark, especially of 

 young trees, is injui-ious. Various means are therefore 

 adopted to prevent the preparation from coming into 

 actual contact with the tree. One of these is to obtain 

 waterproof brown paper, and cut it into bands about six 

 inches wide, and lengths according to the size of the trees 

 to be treated. These are tied round the stem and the 

 preparation smeared over the paper. This prevents the 

 ascent of the moths exactly the same as if placed directly 

 on the bark, and when no longer required can be re- 

 moved without injury to the bark. 



A smooth portion of the tree should be chosen, so that 

 the bands may lie close arid prevent the moths passing 

 underneath them. 



Another plan is to fix hay bands in a similar way, 

 and to plaster the grease on the outsides of these. 



A preparation of bird lime, and also a sticky oil have 

 been used for the same purpose, and a special preparation 

 has been made by Messrs. McMunn & Harlow, Skeet Hill 

 Farm, Chelsfield, Kent ; also another by Mr. Home, of 

 Cliffe, Rochester. 



But all require to be used with caution, or damage to 

 the tree will result. Any substance which excludes the 



