

lew alike as regards water supply, each branch i- likely to be affected 



iv. In evergreen trees possessing a defective root system, sun 



h or burning of the tip of the 



r/jes follows. This W 



and may cause a loss 



of all the foliage, and later the death 

 of t' : ,jnc blight). 



) til fruit-, grajx; 



'niinonly Differ from 



winterkilling' ! 'lants affected 



itt will leave out in the 



"t their fruit and then 







it the maturing 

 ing of fruit acts asaftf- 

 drain on th the 



plant. A fairly large- number of 

 es located near 



have died from winter- 

 killing < ) recent years, ne- 

 cessitating considerable outlay in re- 

 Trees located on 

 inkrrients are very likely to 

 that i>ortiori of the tree 

 the embankment 



viDU'rktitefi root from elm 

 tree. Note Uu;k of fine flbrout root*, 

 which bare dtod. 



affected. Hoots growing under favor- 

 able condition-; are less likely to be 

 affected than those growing under 

 poorer conditions, even in case of 

 a (single tree. The smaller, younger 

 feeding roots are usually most 

 severely affected, and there is a 

 marked tendency in some species 

 for the roots continually to die back 

 to the trunk when the terminal root 

 system is affected. In these cases 



numerous new lateral root- are often 

 formed, but as the dying back con- 

 tinues, these are eventually involved. 

 Various fungi soon attack any part 

 of a tree dying from root injury. 

 Later, the bark falls off, but deteri- 

 M is not so rapid as in trees 

 killed by other causes. 



While the symptoms of dying back 

 resulting from winterkilling of roots 



