Slides Presented in Class
SO2 damage on birch leaf. Interveinal necrosis.
SO2 damage to spruce in the Czech Republic.
Flourine damage on birch. Necrosis at the margins of leaves.
Ozone damage on leaf.
Salt damage on pines next to roadway.
Salt damage on white pine next to road.
Salt damage on maple leaves.
Winter injury from desiccation on Scots pine.
Winter injury from desiccation on newly planted spruce.
Frost crack on oak. Frost cracks can originate from old wounds.
Winter sunscald on south side of young tree.
Iron chlorosis on oak (leaves on right). Healthy oak leaf on left.
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