522 



PROTECTION AGAINST INSOLATION. 



round their stumps planted up. Small narrow felling-areas 

 should be established, running from north-west to south-east, 

 as far as this can be done without danger from storms, so that 

 the young crops may get lateral slielter from the old wood to 

 the south-west of them. 



Section II. — Baek- Scorching. 

 1. External Appearance. 

 Tiie name harlt-scorcJiing* denotes a well-known niaiad}' of 

 trees, which generally occurs on the western or south-western 



Fiji;. 243. — Transverse section ol ^ bctcli ali'cctcd by bark-scorching', cut 12 feet 

 above tlie »round. The damage is limited to tlie sector a b c. 



sides of stems and in directions intermediate to them, the 

 W.S.W. side being the commonest seat of injury, while it only 

 exceptionally happens on the southern side of a tree. This 

 injury is first rendered visible by the drying up of the l)arkof 

 affected trees, which assumes a reddish colour, and then 



• The term burk-xcorchiM/ is used in Somerville's translatidii of llartig's 

 Disea.scs of Trees, and is a better term tiian hn rJi-lilisli-r. wliidi has alnady 

 been ai)|dlcd to dise;uses caused ijy fungi. 



