Biology and Control of Christmas Tree Insects
http://msucares.com/pubs/publications/pub1765.htm
This guide is divided into two sections. The first section presents information on pest biology, damage, cultural controls, and special application considerations; the second section lists recommended insecticides and rates for each pest.
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Common Fraser Fir Insect Pests
http://www.ces.ncsu.edu/nreos/forest/xmas/ctn_18.html
This site contains pictures of common fraser fir insect pests.
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CONTROL OF PHYTOPHTHORA ROOT ROT IN FRASER FIR CHRISTMAS TREES
http://www.ces.ncsu.edu/nreos/forest/xmas/CTN022.html
Phytophthora root rot is the only serious disease of Fraser fir Christmas trees in western North Carolina. It is caused by a fungus that inhabits the soil and infects many woody plants through the roots. It can lie dormant in the soil for several years waiting for a susceptible host such as Fraser fir and the right environmental conditions, including warm soil temperatures (above 54 degrees F.) and soils saturated with water to infect plant roots.
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Insect Pests of Christmas Trees
http://www.ext.vt.edu/departments/entomology/christmas/slideshow2.html
This site contains images and descriptions of various insect pests that affect christmas trees
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MINOR PESTS OF FRASER FIR CHRISTMAS TREES
http://www.ces.ncsu.edu/nreos/forest/xmas/CTN023.html
Most growers of Fraser fir Christmas trees in western North Carolina are familiar with its major pests: spruce spider mites, balsam twig aphids and balsam woolly adelgids. But there are several minor insects and diseases that growers may occasionally encounter.
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NEEDLE CAST DISEASES IN CHRISTMAS TREES
http://www.ces.ncsu.edu/nreos/forest/xmas/ctn_033.html
Needle cast diseases of conifer needles are caused by fungi. They can cause Christmas tree growers considerable losses when trees are tagged in the summer to be sold, only to be defoliated by fall.
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Pine Tortoise Scale
http://www.ces.ncsu.edu/nreos/forest/xmas/ctn_031.html
One of the more difficult insects for Christmas tree growers to control is the pine tortoise scale (Toumeyella parvicornis).
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ROSETTE BUD MITE ON FRASER FIR
http://www.ces.ncsu.edu/nreos/forest/xmas/ctn_018a.html
Rosette buds affect the quality of Fraser fir grown for Christmas trees. The more rosette buds that are on a tree and the more years the tree has rosette buds, the more the quality is affected.
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RUST MITES IN CHRISTMAS TREES
http://www.ces.ncsu.edu/nreos/forest/xmas/ctn_034.html
White pine and Fraser fir Christmas tree growers have occasional problems with the rust mite at higher elevations (>3000 ft). Because damage doesn't occur yearly on high elevation sites, many fir and pine growers do not scout regularly for this pest. They only notice the damage when it is too late to achieve control.
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THE BALSAM TWIG APHID
http://www.ces.ncsu.edu/nreos/forest/xmas/CTN019.html
The balsam twig aphid (Mindarus abietinus Koch) (BTA) is a small, pale green aphid that feeds on fir trees in the spring. BTA feeding on the new growth of Fraser fir often results in permanently curled needles.
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