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Cornell Cooperative Extension
Sullivan County
4-H Youth Development
Agriculture
Catskills Kitchen
Energy
Environment
Food & Nutrition
Gardening
Home & Family
Sullivan Fresh
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Tree Pests & Diseases
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Tree Pests & Diseases
Anthracnose Leaf Blight of Shade Trees
Anthracnose of Trees & Shrubs
Arborvitae Leaf Miner
Ash Dieback
Asian Longhorn Beetle
Bagworms
Balsam Twig Aphid
Bark Beetle
Birch Leaf Miner Sawfly
Black Turpentine Beetle
Black Vine Weevil
Bronze Birch Borer
Christmas Tree Pest Manual
Cornell Plantations' Pink Ugly Mix Saves Trees from Holiday Thieves
Eastern Spruce Gall Adelgid
Emerald Ash Borer
Hemlock Woolly Adelgid
Honeylocust Plant Bug
Honeylocust Pod Galls
Horntails
Horticultural Oil Pest Control
Imported Willow Leaf Beetle
Integrated Pest Management (IPM)
Juniper Scale
Magnolia Scale
Maple Decline
Maple Gall Mites
Maple Trumpet Skeletonizer
Mountain Ash Sawfly
Oak Skeletonizer
Pests of Ornamentals
Pine needle Scale
Pine tortoise Scale
Plant Galls
Spruce Needleminer
Spruce Spidermites
Sugar Maple & Pear Thrip
Walnut Wilt
White Pine Beetle
Last updated May 11, 2021
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