44 



Fig 1 . 10 A ten-year old windbreak of Scotch pine. Young- trees of this 

 species have a very good form but the older trees generally become crooked. 



trees would be much more sightly after reaching an age of 

 thirty to forty years. On good soil situations the Scotch pine 

 is slightly slower in growth than either the white or red pines 

 during the first ten or twelve years. During the same period 

 it slightly exceeds the Austrian pine in growth. As a rule, the 

 Scotch pine planter dislikes the tree principally because of 

 the crooked growth it makes. In the northeastern part of 

 Iowa, or dry exposed situations, it can be used to advantage, 

 altho the Austrian or western yellow pines should be given 

 preference on difficult situations. 



The Wood'. The wood of Scotch pine is moderately light, 

 soft, knotty, and is not durable. In Europe the wood is used 

 extensively. In this country it has not been used enough to 

 be considered. Because of the crooked growth it is not desir- 

 able for lumber or posts, but might be utilized for a quick fuel. 



Planting \ In planting the Scotch pine for windbreaks 

 place the trees about 10 feet apart in the rows and give them 

 an abundance of light from the side in order to permit the de- 

 velopment of side branches. If used for shelterbelts, the rows 

 of Scotch pine might be supplemented with several rows of 



