Windbreak Evergreens The Linn County Nurseries 
WINDBREAK EVERGREENS 
The trees offered in this section have not been sheared and have been 
grown in a thick row. They have been transplanted and root pruned to de- 
velop 2 good root system. They can be successfully transplanted bare root 
if handled with reasonable care to prevent drying which would be fatal 
to them. 
We expect to under-cut these as soon as the frost is out, so a gang of three 
can get them out quite efficiently, If possible the buyer should come prepar- 
ed to load the trees directly into his truck from the field. 
If shipping is desired most will ship very well up to and including 2-3 ft. 
size. These will be carefully packed and be shipped express collect. 
SPACING. Plant 10 to 15 feet apart. If more than one row is used we 
like *o space the rows at least 20 feet apart and keep broad leaf trees far 
enough away to prevent smothering the lower branches. 
SOILS. Pines prefer light well drained soils. Spruces and firs are at 
home on most fairly good soils. Arborvitae stands wetter soils than most 
other evergreens. 
PESTS. Red Spider or Mite causes much damage if there are not fre- 
quent dashing showers in early summer to destroy the young, and a rusty 
appearance is likely to be due to them. Pine Needle Scale is found 
almost everywhere and under favorable conditions may become a serious 
pest. White spots on the leaves of pine or spruce are likely due to it. Both 
this and Red Spider can be controlled by a single thorough spraying with 
Lime Sulphur such as orchardists use, in the regular dormant strength- (1 to 
8 of water) applied on warm days in spring before the new growth starts. 
Soluble oil sprays also are effective, but must be used with much caution. 
With frequent dashing showers through June, when the young are crawling, 
neither of these pests is likely to be serious. 
20 or more 
Size Each Each 
ARBORVITAE—American. 40-50 ft. White 18-24 in. 1.10 1.00 
Cedar. A good windbreak tree for low 2-3 ft. 1535 1E25 
ground and from here north. Can be plant- 3-4 ft. 1.65 1.50 
ed some closer than most others. 
CEDAR. Eastern Red. The native red cedar 18-24 in. 1.10 1.00 
makes a hardy and dense windbreak not 2-3 ft. 1.35 25 
easily damaged. 
PINE—Austrian. 40-50 ft. An excellent fast- 18-24 in. 1.10 1.00 
growing tree requiring reasonably good 2-3 ft. 1.35 1.25 
soil. Doesn't like light sandy soil. 3-4 ft. 1.65 1.50 
PINE—Ponderosa. Bull Pine. 50-60 ft. Very 18-24 in. 1.10 1.00 
long coarse leaves and stiff rugged branch- 2-3 ft. 13) Laas 
es not easily broken. Endures extreme 3-4 ft. 1.65 1.50 
drought. Requires full sun and tolerates no 
shade. 
—Strobus, White Pine. 70-90 ft. One of Iowa’s 12-18 in. 90 .80 
few native conifers and one of the best for 18-24 in. 1.10 1.00 
windbreaks. Tolerates some shade but not 
wet soil. 
—Sylvestris, Scotch Pine. 40-50 ft. Rapid 2-3 ft. 1.35 125 
growing, wide spreading tree with yellow- 3-4 ft. 1.65 1.50 
red bark on branches. 
36 
