際際滷

際際滷Share a Scribd company logo

trimmingtree04352_c

John Wall
John Wall

Pruning cuts should be made correctly to maintain tree health. Thinning cuts, which shorten large limbs back to side branches large enough to resume growth, are the best choice. Stub cuts, where limbs are cut without regard to buds or branches, and heading cuts, which trim limbs back too far, should be avoided as they can damage the tree. No more than 30% of a mature tree's foliage should be removed during pruning in any given year.

1 of 1
Download to read offline
No more than 30 percent of a mature trees foliage should be removed in any one year. STUB CUT THINNING CUT HEADING CUT Graphics / Illustration: Tom Laird, College of Agricultural Sciences. 息 Penn State 2000 Monitoring Tree Pruners: Know Your Cuts Additional graphics and information available on the Internet at aginfo.psu.edu/psp Penn State Pointers For Spring/Fall Time Frame THINNING CUT This cut is used to shorten a large limb back to a side branch large enough to resume growth of the pruned limb. The use of thinning cuts is the correct choice to maintain trees. STUB CUT The limb is cut indiscriminately where no bud or side limb exists. A stub cut is highly destructive to the tree and should be used only when removing the tree. HEADING CUT The result of trimming a limb back to a bud or a very small branch that cant support the growth of the pruned limb is called heading. Heading shouldnt be used unless the tree is being removed. These pruning cuts are commonly used by certified arborists.

More Related Content

trimmingtree04352_c

  • 1. No more than 30 percent of a mature trees foliage should be removed in any one year. STUB CUT THINNING CUT HEADING CUT Graphics / Illustration: Tom Laird, College of Agricultural Sciences. 息 Penn State 2000 Monitoring Tree Pruners: Know Your Cuts Additional graphics and information available on the Internet at aginfo.psu.edu/psp Penn State Pointers For Spring/Fall Time Frame THINNING CUT This cut is used to shorten a large limb back to a side branch large enough to resume growth of the pruned limb. The use of thinning cuts is the correct choice to maintain trees. STUB CUT The limb is cut indiscriminately where no bud or side limb exists. A stub cut is highly destructive to the tree and should be used only when removing the tree. HEADING CUT The result of trimming a limb back to a bud or a very small branch that cant support the growth of the pruned limb is called heading. Heading shouldnt be used unless the tree is being removed. These pruning cuts are commonly used by certified arborists.