Bul. 597, U.S. Dept. of Agriculture. PLATE V. 
DEVICES IN USE TO PROTECT WORK HORSES FROM OVIPOSITING G. HAEMORRHOIDALIS. 
Upper left.—A leather frings is fairly effective. Upper right.—A burlap fringe hinders breathing. 
Lower left.—A wire basket often permits ovipositions on account of coarse mesh and ill fitting. 
Moisture and dust collectand hinder breathing. Lower right.—A strip of leather actually 
covers oviposition places and allows the horse to breathe easily. (Original.) 
