206 OHIO EXPERIMENT STATION: BULLETIN 332 



foot fly paper is covered. It operates by entangling the unwary 

 insect and holding it until it perishes. This semi-liquid material is 

 better than the fly paper which sometimes is tied about the tree 

 trunks since insects sometimes crawl under the paper unless par- 

 ticular care is taken in applying it. 



BANDS OF LOOSE COTTON BATTING 



Loose cotton batting tied with a string around the trunk of a 

 tree makes a fairly effective barrier for most crawling insects until 

 it becomes matted through exposure or directly after rains. 



BANDS OF BURLAP AND OTHER CLOTH 



Bands of rough cloth are used quite extensively for banding 

 trees but the principle involved is not that of forming a barrier 

 over which the insects cannot travel, but rather to afford them con- 

 venient shelters in which to collect. When such bands are used, 

 frequent examinations are necessary in order to collect and destroy 

 the harboring pests. 



