150 Principles of Plant Culture. 



SECTION V. PLANTS AS AFFECTED BY UNFAVORABLE 

 WIND. 



A BY EXCESSIVE WIND. 



244. Damage to trees and other plants by excessive 

 wind is too familiar to need notice, except to suggest 

 preventive measures. 



a The premature blowing off of fruits may be in a 

 measure prevented by planting fruit trees where they 

 are more or less sheltered from prevailing winds by 

 shade trees, buildings, forests or elevations of land. 

 Orchards may be in part protected by planting a wind- 

 break on the windward side (203). 

 . b Shade trees in exposed situations should be 

 headed low, and the head should be formed of numerous 

 branches. The higher the head, the more it is exposed 

 to wind and the greater is the leverage upon the trunk. 

 Several small branches are better able to bear the 

 tempest than a few larger ones. 



Shade trees for exposed situations should be of species 

 not likely to be deformed by wind. Certain trees, as the 

 white maple,* often develop one-sided if planted where 

 exposed to prevailing winds, while others, as the sugar 

 maplef and Norway maplej are not thus affected. 



B PLANTS AS AFFECTED BY INSUFFICIEBT WIND. 



245. Insufficient Wind Promotes the development 

 of certain Fungus Parasites (321) by favoring an ex- 



* Acer dasycarpum. f Acer saccharinum. % Acer platanoides. 



