An index of common tree diseases taken from the Forest Insect and The diseases are particularly severe on American sycamore, the white oak group, Comandra blister rust is a disease of hard pines that is caused by a fungus...
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forestry.about.com/od/diseases/tp/An-Index-of-Common-Tr...
forestry.about.com/od/diseases/tp/An-Index-of-Common-Tree-Diseas.htm
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The pine needle scale, Chionaspis pinifoliae (Fitch), is probably the most common armored scale found on conifers in the United States and Canada. The white, oystershell-shaped scales can completely cover needles, causing plant discoloration to needle and branch death. Products for your pine tree;
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www.treehelp.com/trees/pine/pine-needle-scale.asp
www.treehelp.com/trees/pine/pine-needle-scale.asp
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White Pine Weevil; The white pine weevil is a native insect attacking eastern white pine. In the eastern United States, the white pine weevil may attack at least 20 different tree species, including ornamentals.
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www.treehelp.com/trees/pine/pine-iandd.asp
www.treehelp.com/trees/pine/pine-iandd.asp
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Gradually or rapidly kills trees. On white pine may cause butt rot before tree dies. Do not plant white pine near currents (Ribes spp.); use disease-free plants, plant other pine species.
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www.ces.ncsu.edu/depts/pp/notes/Ornamental/odin19/od19....
www.ces.ncsu.edu/depts/pp/notes/Ornamental/odin19/od19.htm
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Growing white pine does require some management effort. Tree mortality from blister rust and damage from weevil attacks should be expected even if the recommended guidelines are followed. However, high quality trees can be grown and damage minimized with Symptoms vary with different stages of disease development.
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www.na.fs.fed.us/spfo/pubs/howtos/ht_white/white.htm
www.na.fs.fed.us/spfo/pubs/howtos/ht_white/white.htm
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In the eastern United States, the white pine weevil may attack at least 20 different tree species, including ornamentals. However, eastern white pine is the most suitable host for brood development. Figure 8 - White pine deformed by the white pine weevil. The remaining dead leader provides a pathway for disease organisms.
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www.na.fs.fed.us/spfo/pubs/fidls/wp_weevil/weevil.htm
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Pest or condition: pine bark adelgid; Evidence: bole with light to heavy white, cottony covering. Effect: prolonged infestation can be associated with bark disease, tree mortality. Notes: natural controls usually effective;
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www.dof.virginia.gov/health/insect-disease-guide-conife...
www.dof.virginia.gov/health/insect-disease-guide-conifer.shtml
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Jul 1, 2009 This pine tree disease is characterized by stunted, brown new growth in the White Pine Blister Rust affects the Eastern White Pine.
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garden.lovetoknow.com/wiki/Pine_Tree_Disease
garden.lovetoknow.com/wiki/Pine_Tree_Disease
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White powdery patches on leaves, esp. underside. Leaves turn yellow or brown and tend to remain attached to the tree for an extended period. (Yellow leaves may drop prematurely.) Inner bark exhibits dark brown streaking. Lab testing needed to confirm infection. REFERENCE: Dutch Elm Disease, PP-324 (ND) Most pine, esp.
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www.extension.umn.edu/distribution/horticulture/DG6659....
www.extension.umn.edu/distribution/horticulture/DG6659.html
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