General Pests
17-Year Periodical Cicadas
Affected Plants: maple, hickory, hawthorn, apple, peach, cherry, and pear.
Read More (pdf)
Algae and Moss
Ants
Affected Plants: decaying wood
Read More (pdf)
Anthracnose of Sycamore and other Shade Trees
Affected Plants: Sycamore, Maple, Ash, Elm, Oak and Walnut.
Anthracnose of Turf
Affected plants: Creeping bentgrass, annual bluegrass, Kentucky bluegrass, and tall fescue
Anthracnose of Watermelon, Cucumber, Muskmelon
Aphids
Affected Plants: most plants
Read More (pdf)
Apple and Crabapple Powdery Mildew
Apple Pest Control
Apple Russeting
Apple Scab
Apple and Pear, Sooty Blotch and Fly Speck
Arborvitae Fall Needle Drop
Arborvitae, Seiridium Canker
Armyworms and Cutworms
Affected Plants: numerous
Read More (pdf)
Fall Armyworms
Affected Plants: mainly grasses
Read More (pdf)
Ash/Lilac Borer
Ash, Emerald Ash Borer
Ash Flower Gall Mite
Ash, Mycosphaerella Leaf Spot
Ash Plant Bug
Ash Rust
Asian Jumping Worms
Asparagus Beetle
Ash Sawfly
Aster Yellows
Affected Plants: numerous
Read More (pdf)
Bacterial Spot on Fruit Trees
Bacterial Wilt of Vine Crops
Bagworms
Bark Shedding
Bean Leaf Beetle
Bermudagrass Spring Dead Spot
Blackberries and Raspberries, Tan Drupelets
Black Knot
Black Rot on Grapes
Bleeding Cankers on Shade Trees
Blister Beetles
Blossom-End Rot
Blueberries, Iron Chlorosis
Bluegrass and Zoysia Billbugs
Borers in Trees
Brown Rot of Fruit Trees
Brown Patch of Turf
Affected plants: many turfgrasses but most severe on tall fescue, perennial ryegrass and creeping bentgrass
Botryosphaeria Canker of Juniper
Botryosphaeria Canker of Oak
Boxelder Bug
Bronze Birch Borer
Affected Plants: Paper birch, yellow birch, gray birch, poplar, cottonwood and willow
Budworms
Burning Bush Spider Mites
Cabbage Looper
Cabbageworm
Cankerworm
Carpenter Bees
Cedar-Apple and Related Rusts
Affected Plants: Apple, flowering crabapple, juniper, cedar.
Affected Plants: untreated wood
Cedar-Apple Rust Control on Fruiting Apples
Cherry Leaf Spot
Affected Plants: Sour cherry, almond, dwarf Russian almond; bitter, black, Japanese flowering, mahalen, pin, sand, and sweet cherries; chokecherry; cherry laurel; and Canada, common, Japanese, and wild plums.
Chiggers
Chinch Bug
Affected plants: Primarily zoysiagrass but may infest buffalograss, bermudagrass, and bluegrass.
Clover
Cicada Killer
Codling Moth on Apple Trees
Affected Plants: Primarily apples but may also attack pears, crabapples, walnuts, quince and other fruits.
Colorado Potato Beetle
Corn Earworm
Corn, Poorly Filled Ears
Corn Smut
Cottonwood Borer
Crabgrass
Cucumber Beetle
Affected plants: Cucumber, cantaloupe, squash, pumpkin, gourd, and watermelon. May also affec beans, corn, and potatoes
Cucumber Bitterness
Dandelion
Dodder
Diplodia Tip Blight of Pine
Dollar Spot on Turf
Dothistroma Needle Blight of Pine
Dutch Elm Disease
Earthworms in the Lawn
Eastern Tent Caterpillar
Elm Flea Weevil
Elm Leaf Beetle
Elm Pocket Gall
Woolly Elm Aphid
Environmental Stress on Trees
Euonymus Scale
Affected Plants: Euonymus, camellia, boxwood, bittersweet, daphne, eugenia, English ivy, hibiscus, holly jasmine, privet, honeysuckle, olive, pachysandra and stone fruits
European Pine Sawfly
Fall Webworm
Fireblight on Trees
Affected Plants: Apple, flowering crabapple, pear, ornamental pear, firethorn, hawthorn, cotoneaster, quince, mountain ash.
Flatid Planthopper
Flea Beetle
Affected plants: Watermelons, pumpkins, peas, beans, eggplants, sweet potatoes, beets, spinach, strawberries and potatoes
Flooding and Plants
Freeze and Frost
Damage in Spring
Frost Cracks on Trees
Galls of Trees
Girdling Roots
Grapes, Downy Mildew
Grasshoppers
Grassy Sandbur/Stickers
Gray Leaf Spot on Perennial Ryegrass
Green June Beetles
Affected Plants: Apricots, nectarines, peaches, plums, prunes, apples, pears, grapes, figs, blackberries, and raspberries
Grubs, White
Gummosis of Fruit Trees
Hackberry, Island Chlorosis
Hackberry Nipple Gall Maker
Harlequin Bug
Affected plants: Cabbage, collards, horseradish, mustards, and turnips. May also feed on potatoes, tomatoes, and okra
Hawthorn Rust Diseases
Henbit and Chickweed
Herbicide Damage on Garden Plants
Affected plants: All plants affected but tomato, potato, grape, and redbud very sensitive
Honeylocust, Plant Bug/Leafhopper Complex
Hollyhock Rust
Hollyhock Weevil
Honeysuckle Aphid
Impatiens Downy Mildew
Iris Bacterial Soft Rot
Iris Borer
Iris Leaf Spot
Iris Weed Control
Iron Chlorosis of Herbaceous Plants
Iron Chlorosis of Trees
Affected Plants: Pin oak, silver maple, bald cypress, crabapple and sweet gum; white pine, elm, London planetree, cottonwood, walnut, sugar maple, Eastern red cedar, Bradford pear and willow
Japanese Beetle
Affected Plants: numerous, including rose, birch, linden, crabapple, grape, Virginia creeper, and buckeye
Juniper, Cercospora Needle Blight
Juniper, Kabatina Tip Blight
Juniper, Phomopsis Tip Blight
Juniper Root Diseases
Juniper Webworm
Kermes Oak Scale
Lace Bug
Lady Bug Asian
Leaf Drop in Spring
Leaf Spot and Melting-out
Leaves That Don't Drop in the Fall
Lecanium Scales
Little Barley
Maple Bladdergall Mite
Mapleworm
Magnolia Scale
Mimosa Webworm
Minute Pirate Bug
Lilac, Powdery Mildew
Lilac Leaf Spot
Mite, Two-Spotted
Moles
Mosaic Virus of Vegetable Plants
Affected plants: Tomato, pepper, cucumber, melons, squash, spinach, celery, beets, and petunia
Mosquitos
Mushrooms in a Lawn
Nantucket Pine Tip Moth
Natural Needle Drop
Nematodes
Oak Gall Midge
Oak, Hypoxylon Canker
Oak, Jumping Oak Gall
Oak Lace Bug
Oak, Obscure Scale
Oak, Scarlet Oak Sawfly
Oak, Tubakia Leaf Spot
Affected Plants: Primarily oaks but also maple, hickory, chestnut, redbud, ash, tupelo, sourwood, rose, sassafras & elm.
Oak Wilt
Oak, Vein Pocket Gall
Peach, Perennial Canker
Peach Leaf Curl
Peachtree Borer
Pear Leaf Rust
Pitburn and Split Pit of Stone Fruits
Pseudomonas Blight
Pine, Brown Spot
Pine Needle Scale
Pine Tortoise Scale
Pine Wilt
Oxalis (Yellow Woodsorrel)
Roly-Polys, Pillbugs, & Sowbugs
Plum Curculio
Poison Ivy
Pollination Problems
Potato Tuber, Corky Bumps
Potato, Green Tubers
Potato, Growth Cracks
Potato, Internal Darkening
Potato, Secondary Growth
Powdery Mildew of Cucurbits
Powdery Mildew on Turf
Affected plants: Kentucky bluegrass (most susceptible), bermudagrass, red fescue, others
Rhubarb Crown Rot
Affected plants: Rhubarb
Rhubarb Seedstalks
Russian Olive, Phomopsis Canker
Rust on Turfgrass
San Jose Scale
Scab of Stone Fruits
Scorch of Trees and Shrubs
Slugs
Sod Webworm
Sooty Mold
Spittlebugs
Spotted Wing Drosophila
Affected plants: Blackberries, blueberries, boysenberries, raspberries, strawberries and grapes
Spruce, Needle Drop and Twig Dieback
Spruce, Rhizosphaeria Needlecast
Spruce Spider Mite
Squash Bug
Squash Vine Borer
Affected plants: Primarily squash, pumpkins and gourds but cucumbers and melons also possible hosts
Squirrel Damage
Stalk Borer
Star-of-Bethlehem
Stripe Smut of Turf
Summer Patch of Turf
Sunscalded Fruit
Tomato, Bacterial Spot or Speck
Tomato, Anthracnose
Tomato, Bacterial Canker
Tomato, Cracking
Tomato, Early Blight and Septoria Leaf Spot
Tomato, Fruit Not Setting
Tomato, Fruit Slow to Ripen
Tomato Fruitworm
Tomato, Fusarium and Verticillium Wilt
Tomato, Hard Core in Fruit
Tomato Hornworm
Tomato, Leaf Roll
Tomato, Spider Mites
Tomato, Spotted Wilt Virus
Tomato Stink Bug Damage
Vine Crops Flowering But Not Setting Fruit
Tomato, Walnut Wilt
Affected plants: Tomato, potato, blackberry, apple, lilac, asparagus, chrysanthemum, and peony
Tomato, Warty Stems
Termites
Trees, Sunscald on Trunk
Affected Plants: Honey locusts, fruit trees, ashes, oaks, maples, lindens and willows and other thin-barked trees
Trees, Controlling Unwanted Trees
Trees, Lack of Fall Color
Trees, Verticillium Wilt of Trees
Affected Plants: Catalpa, maple, Russian olive, redbud, smoketree, golden-rain tree, cherry and other stone fruits, and barberry
Trees, Winter Damage
Trees with Cavities
Trees with Mushroom Growth
Wetwood and Slime Flux on Trees
Twig Girdler
Affected Plants: Elm, hickory, oak, linden, hackberry, apple, pecan, persimmon, poplar, sour gum, honeylocust, dogwood, and some flowering fruit trees
Walnut Caterpillar
Affected Plants: Primarily black walnut, pecan, and several species of hickory but may also attack birch, oak, willow, honeylocust and apple
Walnut Wilt
Affected Plants: Tomato, potato, blackberry, apple, lilac, asparagus, chrysanthemum, and peony.
Whiteflies
White Clover
Winter Grain Mite
Affected plants: Kentucky bluegrass, perennial ryegrass, tall fescue and Chewings red fescue
Yellow-Bellied Sapsucker
Yellownecked Caterpillar
Affected Plants: Apple, pear, cherry, oak, hickory, beech, birch, elm, maple, pear, cherry, oak and walnut