PLANTING GUIDELINES

                Plant competition and animal browsing are the most limiting factors.  In order to inhibit these negative factors, a five-strand electric fence may need to be constructed to minimize deer browsing and frequent mowing may need to be performed to reduce competition.  The following guidelines should be used when planting:

A.  SITE PREPARATION:

                 Because of existing vegetation on the site to be planted, it is often necessary to prepare the site to eliminate sod, weeds, or brush and to reduce competition for moisture and sunlight.  Areas that have been in agricultural crops such as corn or wheat the previous year require no site preparation prior to planting.  On areas of heavy sod or weeds, plowing and disking may be a necessity.  Plowing a furrow or using a tree-planting machine that has sod-throwing blades will provide excellent planting conditions.  Herbicides can be used successfully to kill grasses and weeds in areas of intense competition.  Some herbicides can be applied before planting; some are applied at the time of planting; and some can be applied following planting.  It should be noted that mixtures and application rates might have to be done with a professional who is licensed to handle such chemicals.

 B.  SELECTING TREES TO PLANT:

                 The selection of the species of trees to be planted on any particular area depends primarily upon the soil and site, the end forest product desired and the animal, insect and disease problems associated with the area.  Except marshy wet areas and meadows, most abandoned agricultural areas will support tree growth.  However, the better the soil the better the tree growth in terms of quality and quantity.  The following species of trees are recommended for planting:

 White pine, Pinus strobus

White pine is a native species to Pennsylvania and grows naturally on areas ranging from sandy soils to swamp edges.  It prefers fertile well-drained loam and silt loam soils where it will seldom be exceeded in growth.  This moderately shade tolerant species is very susceptible to insect and disease problems, namely the white pine weevil and the white pine blister rust.  It is definitely recommended to construct deer fencing to protect the white pine seedlings from deer browsing, or choose species that are less susceptible to deer browse. 

Douglas fir, Pseudotsuga menziesii

Douglas-fir is moderately shade-tolerant, fast-growing, long lived species that thrives best on most upland soils except when there is high lime content in the topsoil.  It is frost-resistant and a common ornamental.  It is very sought after for Christmas trees because the needles remain long after the tree has been cut.  There are two forms of Douglas fir; coastal form located in Northwestern United States and the Rocky Mountain form located in the Rocky Mountain region.  They differ in foliage color and cone structure.  Douglas fir comprises approximately 50% of the standing timber in the western forests, and is one of the leading timber producing species. 

Norway spruce, Picea abies

Norway spruce reaches its best development on mesic (not to dry and not to wet) sites of acid, fertile, moist soils, but will make satisfactory growth in other soils that are not too dry.  It is also intolerant of lime in the topsoil and sensitive to late frost.  The root system is very shallow on poorly drained soils or clay and moderately deep in porous well-drained soils.  It should also be noted that it is natural for spruce to grow relatively slow for about five years after it is planted.  When the trees are from 7 to 12 years old they begin to grow more rapidly in height and diameter.  Since the neighboring property has Norway spruce growing, I feel this would be one of the better choices for planting. 

White Spruce, Picea glauca

White spruce is a shade-tolerant, slow growing, long lived species that thrives best on mesic and wet-mesic, moist, well drained, porous soils.  It will grow in areas that are too wet for some species and usually will not survive in swampy sites.  Deer browsing damage is usually not severe.  A major insect pest is the spruce budworm that mainly damages mature and overmature trees.

  Red Pine, Pinus resinosa

Red pine is another species that grows naturally in Pennsylvania.  Red pine grows best on well-drained, highly acid, sandy soils and requires plenty of sunlight.  It does not tolerate a high water table or frost pockets.  Moisture requirements for red pine are not exact and good plantations can be established on ridges and sandy areas.  It does not thrive well on extremely dry and sterile sites or in wet, heavy clay soil.  Red pine is susceptible to attacks of insects and disease, namely the European pine shoot moth and Scleroderris canker. 

  Japanese larch, Larix leptolepis

Larch can be grown on soils of almost any consistency from heavy clay to coarse sand, provided sufficient moisture is available.  It grows very rapidly and should not be planted in the shade.  Larch sheds its leaves (needles) in the fall and has a bare appearance in the winter.  It is one of the fastest growing trees in Pennsylvania.  Deer will browse on Japanese larch but only if other food sources are not available.  

  Scotch pine, Pinus sylvestris

Scotch pine grows on virtually any upland soil and thrives best on sandy loam soils.  It is a shade-tolerant; fast growing; moderately long-lived specie.  It is widely planted for Christmas trees and depending on the genetics of the growing stock being planted, it will vary in form, growth rate and color.  The European shoot moth poses the biggest threat to this species. 

  Virginia pine, Pinus virginiana

Virginia pine is usually a small, often unkempt-appearing tree about 40 feet high and 12" dbh, with abundant epicormic branches and a shallow root system.  It is found on a variety of soils, but seems to grow best on clay, loam, or sandy loam.  Virginia pine is shade-intolerant, and is commonly found in dense, pure, even-aged stands as a pioneer tree after fires, and on poor eroded sites.  This species, once established, spreads rapidly.  Virginia pine is grown in plantations for Christmas trees and pulpwood.  It is desirable for pulping because of the fiber yield per acre is high.

  Red Oak, Quercus rubra

Red oak has a very high commercial value and is a sought after species for lumber, veneer, and furniture manufacturing.  The fruit of a red oak tree (acorn) is a preferred food of numerous wildlife species.  Red oak has an intermediate shade tolerance, is relatively fast growing and long lived.  Red oak will grow best on moist well-drained sites and is often associated with north facing slopes.  Leaf eating insects (gypsy moth, oak leaf roller) in conjunction with root rot, disease (oak wilt), drought, or wood boring insects are the biggest cause of oak mortality.  Spraying insecticide helps impede insect defoliation when performed early enough.  Deer browsing and small mammals significantly affect seedling and sapling establishment and growth.  Fencing or grow tubes should be utilized when planting.

  Black Cherry, Prunus serotina

Black cherry is unquestionably the most valuable sought after species for its lumber and veneer contents.  Black cherry fruits are soft, juicy black to dark purple and globular shape.  Black cherry does not tolerate high water tables or poorly drained sites.  It is resistant to frost.  Cherry is shade-tolerant in youth and becoming intolerant as it matures.  It is fast growing and moderately long lived.  Cherry sprouts readily from the root collar or stump as a result of fire, browsing or cutting.  A common pest is the eastern tent caterpillar (defoliating insect).   Black knot is a disease commonly associated and found on branches and small stems.

  Sugar Maple, Acer saccharum

Sugar maple also known as hard maple is a valuable species for lumber and wildlife.  It is most commonly know for its sugar quality when producing maple syrup.  Sugar maple is highly shade tolerant, slow growing and long lived.  It prefers somewhat poorly drained, fertile soils of nearly all textures.  It produces large seed crops every 2-5 years.  It sprouts readily from the stump when the tree is cut.  Sugar maple is also extremely valuable in the fall for its brilliant coloration.

  Tulip Poplar, Liriodendron tulipifera

Also know as yellow poplar, tulip poplar is one of the largest eastern American hardwoods.  It commonly grows to heights of 80'-100' and has a trunk diameter of 2'-5'.  It exhibits a very straight clean trunk.  Poplar prefers a deep, rich, moist, but well-drained soil.  It is shade-intolerant, very fast growing and a moderately long-lived specie.  Poplar responds well to disturbance and will sprout readily from the root collar and stump when injured or cut.  There are very little diseases or insects associated with poplar.

C.  SPACING:

  Under open field planting conditions, it is recommended that most species be planted in rows eight feet apart with eight feet between trees in each row or wider. 

 

                                                No. Of trees needed per acre at different spacing 

                                                               

                                                                6 x 6                       1,210

                                                                7 x 7                          889

                                                                8 x 8                          681

                                                                9 x 9                          538

                                                              10 x 10                         436