Tree Problems

Tree Diseases
http://counties.cce.cornell.edu/allegany_cattaraugus/index.php/tree-diesases

Bark Splitting
http://www.plantclinic.cornell.edu/FactSheets/barksplitting/barksplit.htm

Tree Cankers
http://www.plantclinic.cornell.edu/FactSheets/cankertree/cankertree.htm

Asian Long Horned Beetle ID
http://www.entomology.cornell.edu/Extension/Woodys/ALB_Mahaffey/ALBHomepage.html

Emerald Ash Borer
http://www.emeraldashborer.info/

Beetle Busters
http://www.beetlebusters.info/

Arborist Resources

TCIA: Tree Care Industry Association
http://www.natlarb.com/Public/About_consumers.htm

University of Illinois Woody Plant ID
http://woodyplants.nres.uiuc.edu/

Arbor Day
http://www.arborday.org/index.cfm

International Society of Arboriculture
http://www.isa-arbor.com

Dendrology at Virginia Tech
http://www.cnr.vt.edu/DENDRO/DENDROLOGY/main.htm

Nature In New York

National Forest Service
http://www.na.fs.fed.us/

The New York Botanical Garden
http://www.nybg.org

Brooklyn Botanic Garden
http://www.bbg.org

Queens Botanical Garden
http://www.queensbotanical.org

Wave Hill
http://www.wavehill.org

Snug Harbor
http://www.snug-harbor.org

Leslie Day
http://fieldguidenyc.com/

Foraging With the "Wildman"
http://www.wildmanstevebrill.com