Caring For Trees. Julianne Schieffer Penn State Department of Ecosystem Science and Management. Reduce Maintenance Costs and Efforts. Choose quality plant material. Plan and design well - plant the right tree in the right place.
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Penn State Department of
Ecosystem Science and Management
Choose quality plant material.
Plan and design well - plant the right tree in the right place.
Provide care to young trees - correct planting, irrigation, and pruning.
3 – 3 - 3
Removing more than 25% live crown causes stress to the tree and a biological response to produce more leaves and
Food is made in leaves and stored behind new buds - Photosynthesis
Growth regulating hormones (auxin) produced by apical meristem inhibit lateral growth.
Accounts for orderly branch development and spacing
Branch Collar: an interweaving of branch wood followed by trunk wood (each year) that holds the branch in place; this is the reason that a large heavy branch can sway in the wind without falling off.
Photo credit: Dr. Alex Shigo
The trunk is now exposed
to decay and future structural problems.
The branch collar forms wound-wood or callus to seal wounds and protect from infection.
Painting wounds does not prevent decay! Oil based paints even harm the tree.
Illustration: Dr. Alex Shigo
Photo: V. Cotrone
Photos: V. Cotrone
“Bleeding” doesn’t hurt trees – it is just sap!