Injuries by Sun Scald 



293 



In the nursery-rows, the bodies of the trees are ordinarily- 

 well shaded. There are various means of providing this 

 shade, but the best results may be expected to follow 

 some protection that breaks 

 the force of the sun and does 

 not entirely obstruct it; for 

 in the latter case, the bark 

 does not so readily become 

 inured to exposure to sunshine. 

 Finely woven wire netting 

 rolled around the tree (in more 

 than one thickness, if neces- ^&^ 

 sary), is said to afford very "^ 



good protection for this pur- 

 pose, as shown in Fig. 106 

 (but preferably extending 

 higher up the trunk). The 

 upper part of the trunk is 

 likely to be shaded sufficiently 

 by the branches, although this 

 is not always the case. These 

 rolls of wire netting also serve 

 a purpose in keeping away 

 mice and other vermin. A box 

 of boards (Fig. 107, from S. B. 

 Green) is sometimes used to protect from sun and other 

 injuries. 



Hansen writes as follows on this subject for Dakota 

 conditions: "Trees planted and kept with stem leaning 

 toward the southwest until the branches shade the trunk, 

 are free from it. Some fruit-growers set a board, or two 

 boards nailed together trough-fashion, on the southwest 

 side; others use corn-stalks, wire netting or lath. Low- 



FiG. 106. Tree protected from sxm 

 and rabbits by a roll of netting. 



