APSnet Education Center Plant Disease Lessons Armillaria root disease This disease lesson has an animation of the spread of Armillaria in a forest Click on Figure 9. Black knot Brown root rot Dutch elm disease Leucostoma canker of stone fruits Verticillium wilt White pine blister rust
The American Chestnut Foundation
Selected Forest and Shade Tree Diseases of Significance in the 20th Century
The Spalted Wood
Parasitic Flowering Plants
APSnet Education Center Introduction to the Pathogen Groups Introduction to Parasitic Flowering Plants Plant Disease Lesson Dwarf mistletoes This disease lesson includes an animation of the effect of dwarf mistletoe on a conifer forest over time. Click on Fig. 31.
The Mistletoe Center
The Parasitic Plant Connection
USDA Natural Resources Conservation Services: Noxious and Invasive Weeds
What Does Mistletoe Have to Do with Christmas?
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