Cornell Cooperative Extension

Nassau County
Mulched Trees
NEC
Image by Britney Accettella, CCE Suffolk

Diseases of Trees & Shrubs

Anthracnose
Apple Maggot & Apple Scab
Arborvitae Problems
Black Knot
Cedar Apple Rust
Cultural Problems of Plants
Diagnosing Rhododendron Problems
Disease Resistant Ornamental Trees
Fire Blight
Flowering Dogwood Problems
Juniper Twig Blight 
Leucostoma Canker of Spruce
Maple Decline
Sooty Mold
Tip Blight of Pines 
Verticillium Wilt

Last updated January 27, 2016

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