Michigan Department of Agriculture
http://www.michigan.gov/mda
Under this directory can we add
Pesticide Certification
Nursery License and Inspection
http://www.michigan.gov/mda/0,1607,7-125-1569_16993_16998---,00.html
Christmas Tree Inspection and Certification
http://www.michigan.gov/mda/0,1607,7-125-1567_1601_2561---,00.html
Michigan State University Websites
Department of Forestry
http://www.for.msu.edu/
U.P. Tree Improvement Center - Scotch Pine Varieties
http://www.maes.msu.edu/uptic/ScotchPine/index.html
Other Universities
North Carolina State University
Extension Forestry
http://www.ces.ncsu.edu/nreos/forest/
Christmas Tree Notes
http://www.ces.ncsu.edu/fletcher/programs/xmas/ctnotes/index.html
Christmas Tree Production
http://www.ces.ncsu.edu/fletcher/programs/xmas/index.html
Christmas Tree Genetics
http://www4.ncsu.edu/unity/users/f/frampton/www/ctg.htm
Ohio State University Extension
Ohioline - Bulletins
http://ohioline.osu.edu/
Ohio Christmas Tree Producers Manual
http://ohioline.osu.edu/b670/
Oregon State University
Washington County - Christmas Tree Page
http://extension.oregonstate.edu/washington/forestry/ct.php
Christmas Tree Nutrient Management Guide for Western Oregon and Washington (EM
8856)
http://eesc.orst.edu/agcomwebfile/edmat/html/EM/EM8856-E/EM8856-E.html
Pennsylvania State University
Pennsylvania Christmas Trees
http://ctrees.cas.psu.edu/Default.html
Christmas Tree Pest Manual
http://www.na.fs.fed.us/spfo/pubs/misc/xmastree/
The RGNR - Reforestation, Nurseries and Genetics Resources -
http://www.rngr.net/Nurseries/Publications/NurseryManual/index_html_old/view