246 



Missouri Agricultural Report. 



THE SPIRAL WIRE. 



Spiral protectors of heavy wire have been offered on the market for 



some years, but there are few used in Ohio. "While effective against 



rabbits, they are of no avail against mice, except as the trees are 



mounded. Hence, this form is not superior in any way to the wire 



netting protectors already described. 



Fig 11 The spiral coil 



Fig. 12. Wood veneer. 



WOOD VENEER. 



This style is effective against all kinds of rodents; but, as they 

 form a tight, close, light-excluding cylinder, various forms of insect 

 life thrive in the crevices and under the cover thus provided. The 

 woolly-aphis or root louse, when present in the orchard, increase in 

 great numbers on the bodies of these trees under such covers. "While 



