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Acacia, Bailey Acidic Soil Acidic Soil (Lawns) Ageratum Air Pollution Ajuga Algae Alkaline or Waterlogged Soil Allium Aloe Alternaria Leaf Spot Andromeda Angular Leaf Spots Annual Bluegrass (Poa Anna) Ant(s) Anthracnose (on Lawns) Anthracnose (on plants) Anthracnose Spot Ants Aphid Aphids Apple Apple Maggots Aralia (Fatsia) Arborvitae Leafminer Arborvitae Weevils Arborvitae, American Arborvitae, Oriental Armyworms Artemisia Artichoke Ash, Mountain Ash, White Asian Longhorn Beetle Asiatic Garden Beetle Asparagus Asparagus Beetles Asparagus Miner Aspen Roots Aster Leafhoppers Aster Native Aster Yellows Astilbe Azalea, Evergreen Baby's Breath Bacterial Canker Bacterial Leaf Spot Bacterial Soft Rot Bacterial Spot Bacterial Wilt Bad place for plant Bagworms Bald Cypress Balloon Flower (Campanula) Barberry, Japanese Bark Scale Basil Basswood Leafminer Bean Aphids Bean Leaf Beetle Bean, Lima Bean, Snap Bee Balm (Monarda) Beech, American Beech, European Beet Leafhopper Beets Begonia, Tuberous Begonia, Wax Biennial Cycle Billbugs Bindweed, Field Birch Leafminers Birch Skeletonizer Birch, River Birch, White Birds Bittersweet, American Black Blister Beetle Black Citrus Aphids Black Knot Black Leg Black Line Black Rot Black Spot Black Turfgrass Ataenius Grub Black Vine Weevils Black-eyed Susan (Rudbeckia) Blackberry Bleeding Heart (Dicentra) Bleeding Heart Fringed Bleeding Necrosis (fungus) Blight (bacterial) Blight (fungus) Blight, Early Blight, Late Blister Beetles Blossom Blight Blossom Drop Blossom End Rot Blueberry Bog Rosemary Bolting Borers Boston Ivy Botryosphaeria-Ribis (bacterial) Botrytis Bottom Rot Box Elder Box Elder Bugs Boxwood Mites Boxwood Webworms Boxwood, Common Boxwood, Littleleaf Broccoli Bronze Birch Borer Brown Leaf Spot (fungus) Brown Patch Brown Rot Brown Rot Gummosis Brown Rot of Stone Fruit Brussels Sprout Budworm Bulb Rot Bulbs Old Bulbs Planted Too Shallow Buried Wood Butterfly Bush Buttoning Cabbage Cabbage Aphids Cabbage Loopers Cabbage Maggots Cabbage Worms Cabbage, Chinese Calla Lily Camellia Camellia Scales Candytuft (Iberis) Canker (fungus) Canker Stain (fungus) Cankerworms Canna Lily Carrot Castor Bean Caterpillar Pitch Moth Caterpillar of Artichoke Plum Moth Caterpillar of Gypsy Moth Caterpillar of Holly Bud Moth Caterpillar of Sunflower Moth Caterpillar of The Cypress Moth Caterpillar of Tussock Moth Caterpillars Catmint (Nepeta) Cats Cauliflower Cedar Apple Rust Cedar Tree Borers Cedar, Deodar Cedar, Eastern Red Celery Celery Leaftier Celery Worm Cercospora, Leaf Spot Changes In Soil, Humidity, Temp., Fertilizer Chard Blue Mold (spanish downy mildew) Chard, Swiss Chemical spills- Pesticides, gasoline, lime and fertilizers Cherry Cherry Fruit Worm Cherry Leaf Spot Cherry, Sand Cherry, Weeping Chestnut, Chinese Chickweed Chinch Bugs Chipmunk Chive Chlorosis Chrysanthemum, Garden Cicadas Cinnamon Fern Citrus Citrus Mealy bug Citrus Red Mite Citrus Rust Mites Citrus Scab Citrus Thrips Citrus Whitefly Clematis Clematis Borers Clematis Wilt Climbing Roses Clover, White Club Root Cockscomb (Celosia) Codling Moths Colchicum Cold Damage Cold Temperatures Cold Weather Coleus Collard Colorado Potato Beetle Columbine (Aquilegia) Common Stalk Borer Compacted Soil Compacted Soil, poor soil conditions, heavy clay soil Coneflower, Purple Coral Bells (Heuchera) Coreopsis, Lance-leaved Coreopsis,Threadleaf Corm Scab Corn Corn Earworms Corn Rootworm Corn Smut Cotoneaster Cotoneaster Webworm Cotoneaster, Bear Berry Cotoneaster, Cranberry Cotoneaster, Willow Leaf Cottony Cushion Scales Cottony Maple Leaf Scales Crabapple, Flowering Crabgrass Crape Myrtle (Crepe Myrtle) Creeping Charlie Crocus Crowded Roots Crowded/Arid soil Crown Gall Crown Rot Cucumber Cucumber Beetles Cultural Conditions Cultural Stress Curculios Curly Dwarf Curly Top Cutworms Cypress, False Cypress, Leyland Cytospora Canker Daffodil Dahlia Daisy, Painted Dallisgrass Damping-Off Dandelion Daphne Daylily Deer Delphinium Deodar Weevils Diamondback Moth Caterpillar Dichondra Dieback (fungus) Dill Diplodia-Tip-Blight (fungal) Dog Urine Dogwood Borers Dogwood decline Dogwood, Flowering Dogwood, Kousa Dollar Spot (on Lawns) Downy Mildew Drought Drought Stress Dry Rot Dusty Miller Dutch Elm Disease Eastern Gall Rust Eggplant Elm Leaf Beetles Elm Phloem Necrosis (viral) Elm, American/Hybrid Elm, Chinese Elm, Lacebark Endive English Ivy Engraver Beetle Environmental Problems Euonymus, Evergreen Euonymus, Winged European Corn Borers European Pine Shoot Borer Fairy Rings Fall Webworms Few Male Blossoms Fiery Skipper Fig, Weeping (Ficus) Fir, Balsam Fir, Douglas Fir, White Fire Ants Fire Blight (bacterial) Fireblight Firethorn (Pyracantha) Flat Headed Borer Flea Flea Beetles Flies, Fruit Flower Thrips Flowering Almond Foliar Nematodes Forsythia Four Lined Plant Bug Foxglove (Digitalis) Freeze Injury Fritilaria Frost Damage Fruit Fly Larvae Fruit Rot Fuller Rose Beetle Fungal Diseases Fungus Gnats Fusarium Basal Rot Fusarium Ear Rot Fusarium Wilt Gall Aphids Gall Fly Gall Insects Gall Mites Galls Garden Springtail Garlic Geranium Geranium Geranium Budworms Geranium, Hardy Giant Bark Aphids Gladiola Globe Amaranth Goosegrass Grape Grasshoppers Gray Mold (Botrytis Blight) Greasy Spot Green Stink Bugs Grubs Gummy Stem Blight (black rot) Gypsy Moths Harlequin Bugs Hawthone Lacebug Hawthorn Heather Hemlock Henbit Hibiscus Hickory Hickory Bark Beetles Hickory Borers Hickory Leafrollers Hickory, Shagbark High Humidity Holly Berry Midge Holly, American Holly, Chinese Holly, English Holly, Inkberry Holly, Japanese Holly, Meserve Holly, Winterberry Hollyhock Honeysuckle Honeysuckle Aphid Honeysuckle Leaf Blight Honeysuckle Shrub Hornet Hornworms Horseradish Horseradish Flea Beetle Hosta Hot Weather Hyacinth, Grape Hybrid Tea Roses Hydrangea, Bigleaf Hydrangea, Climbing Hydrangea, Oakleaf Hydrangea, Panicle Hydrangea, Smooth Immature Plants Impatiens Imported Cabbageworms Imported Crucifer Weevils Imported Willow Leaf Beetle Improper Pruning Improper Watering Inadequate Fertilization Iris, Bearded Iris, Japanese Iron Chlorosis Iron Deficiency Irregular Pine Scale Japanese Beetles Japanese Painted Fern Jimsonweed Juniper Blight (fungus) Juniper Scale Juniper, Chinese Juniper, Creeping Juniper, Japanese Garden Juniper, Savin Juniper, Singleseed Kale Knotweed, Prostrate Kohlrabi Lacebugs Lack of Energy Lack of Light Lack of Moisture Lack of Pollination Larch Casebearer Larch Sawfly Larch, American Larch, European Larkspur (Delphinium) Larvae Of Narcissus Bulb Fly Larvae Of Violet Sawflies Larvae of Caribbean Fruit Fly Larvae of Carrot Rust Flies Larvae of Cherry Fruit Fly Larvae of Codling Moth Larvae of Gypsy Moth Larvae of Tussock Moths Late/Early Frost Laurel, Cherry Laurel, Mountain Lawn Moss Lawns Leaf Blight (bacterial) Leaf Blight (fungus) Leaf Blister (fungus) Leaf Blotch (fungus) Leaf Cast (fungus) Leaf Gall (fungus) Leaf Miners Leaf Mold Leaf Mottle Leaf Scorch (Marginal leaf burn) Leaf Smut Leaf Spot Leaf Spot (Lawns) Leaf Streak Fungus Leaf-tier moth larvae Leafhoppers Leafrollers Leek Lemon Brown Rot Lesser Corn Stalk Borer Lettuce Lettuce, Prickly Lichens Lilac (Syringa) Lilac Borers Lilac Leaf Miners Lilac Scale Lily of the Valley Lily, Oriental/Asiatic Lilyturf (Liriope) Linden Leaf Beetle Linden, American Linden, Littleleaf Locust Borers Locust Leafminer Locust, Black Locust, Honey Longtailed Mealy bug Loopers Low Light Magnolia, Southern Mahonia Maidenhair Fern Maple, American Maple, Japanese Maple, Silver Maple, Sugar Maple, Swamp Marigold Marjoram Masked Chafer Larva Mealybug Mealybugs Melon Melonworms Mexican Bean Beetles Mice Midges Mildew (fungus) Milkweed, Common Mimosa Webworms Mineral Deficiency Miniature Roses Mint Mite Mock Orange Moisture Problems Moisture Stress Mold (soft rot) Molds Mole Crickets Moles Moose Mosaic Viruses Mottled Willow Borers Mugo Pine, Dwarf Mulberry Mustard Greens Nandina Narcissus Yellow Stripe Virus Natural Habit Naval Orange Worm Necrotic Fleck Nectria Canker (fungus) Need Cold Need male & female plants Needle Cast (fungus) Needs Fertilizer Needs Pruning Nematodes Nicotiana (Flowering Tobacco) Nitrogen Deficiency Normal Normal Aging Not Enough Water Nutgrass Oak Mites Oak Root Fungus Oak Wilt Oak, Live Oak, Pin Oak, Red Oak, Saw Tooth Oak, White Oak, Willow Oedema Okra Old Age Onion Onion Onion Maggot Onion Thrips Orange Dog Caterpillar Orange Tortrix Caterpillar Oregano Ostrich Fern Over Fertilized Over Harvested Over-Mature Pods Overcrowding Overfeeding Overspread Oxalis Oystershell Scales Ozone Pollution Pachysandra Pansy (Viola) Paper Whites (Narcissus) Parsley Parsleyworms Parsnip Parsnip Leafminer Parsnip Webworm Patch, Summer Patch, Take All Pea Peach Peach Leaf Curl Peach Shot Hole Borer Peach Tree Borer Peanut Pear Pear Leaf Blister Mites Pear Slug (Sawfly) Pear Thrips Pear, Ornamental Pecan Cigar Casebearers Penicillium Corm Rot Peony Pepper Petal Blight Petunias Phlox Phlox, Garden Phomopsis Gall Phosphorus Deficiency Phyllosticta Leaf Spot (fungus) Physical Injury Phytophthora Rot (fungus) Pickleworms Pine Bark Aphids Pine Bark Beetle Pine Decline Pine Needle Scale Pine Shoot Beetles Pine Spittlebugs Pine Webworms Pine Wilt (fungus) Pine, Austrian Pine, Japanese Black Pine, White Pink Rot Plant Bugs Plant Has Set Seed Plant Too Young Plantain, Broadleaf Planted too far north of its planting zone Plum Plum Curculio Pocket Gophers Pokeweed Pool Gall Midge Poor Drainage Poor Fertility Poor Lawn/Turf Damage Poor Pollination Poor Root Development Poor Soil Conditions Poplar Curculio Poplar, Eastern Poplar, Lombardy Poplar, Quaking Aspen Potassium Deficiency Potato Flea Beetles Potato Leafhoppers Potato Leafroller Potato Psyllids Potato, Sweet Potato, White Powdery Mildew Primrose Privet Privet Rust Mite Pruned Too Late Psyllids Pumpkin Purslane Rabbits Raccoons Radish Ragweed Raspberry Red Bud, Eastern Red Thread Redhumped Caterpillars Reproductive Cells Rhizoctonia Rhododendron Rhododendron Borer Rhubarb Rhubarb Curculio Ring Spot Virus Rodent Injury Rodents Root Competition Root Knot Nematodes Root Maggots Root Mealy bugs Root Nematodes Root Rot (fungus) Root Weevils Rose Chafers Rose Curculio Rose Gall Rose Henten, Hellebore Rose Leafhoppers Rose Leafrollers Rose Midge Rose Mosaic/Streaks Rose Scale Rose Slugs Rose Stem Girdler Rosemary Royal Fern Rust (on plants) Rutabaga Sage Salt Damage Salvia Sandbur Santolina, Green Santolina, Lavender Cotton Sassafras Sassafras Weevils Sawflies Sawfly (Larvae) Scab Scab, Apple Scale Scale Insects Scurf Scurfy Scale Sedum Sedum/Stonecrop Self-Seeding Shadblow/Serviceberry Shallot Shasta Daisy Shoestring Root Rot (fungus) Shot Hole Shrub Roses Skin breaks Skunks Slime Flux (bacterial) Slime Molds Slugs Slugs and Snails Smaller European Bark Beetle Smut (fungus) Snapdragon Snow Drops Snow Molds Sod Webworms Soft Rot Soft Scale Soil Is Too Alkaine Soil May Be Too Fertile Soil Problems Soil Too Rich Soil Too Wet/Dry Soil to Alkaline Sooty Mold Sooty Mold Sorrel, Wood Sourwood Southern Armyworms Speedwell Spider Mites Spinach Spinach Leafminer Spirea Spores For Reproduction Spotted Cucumber Beetle Spotted Wilt (fungus) Spring Dead Spot Spring Sickness Spruce Budworm Spruce Gall Aphids Spruce Needle Miners Spruce Spider Mite Spruce, Blue Spruce, Norway Spruce, Serbian Spruce, White Squash Bugs Squash Vine Borers Squash, Summer Squash, Winter Squirrels St. John’s Wort (Hypericum) Stem Borers Stem Canker Stem Injury Stem Rot Stinging Rose Caterpillar Stinkbugs Stored Improperly Straw Flower Strawberry Strawberry Spider Mite Summer Dormancy Sun Scorch Sunburn Sunflowers Sunscald Sweet Alyssum Sweet Gum Sweet Potato Flea Beetle Sweet Potato Weevil Sweet Woodruff Sycamore, American Sycamore, Plane Tree Tar Spot (fungus) Tarnish Plant Bugs Tarragon Tent Caterpillars Thistle, Canada Thrip Thrips Thyme Tip Blight Tip Burn Tomato Tomato Hornworm Too Close to Black Walnut Tree Too Hot Too Much Shade Too Much Sun Too Much Water Treehoppers Trumpet Creeper Tulip Fire/Botrytis Disease Tulip Tree Tulips Tupelo/Black Gum (Nyssa) Turnip Tussock Moths Twig Blight Twig Canker (fungus) Twig Pruner Various Beetles Various Blights Various Plant Stresses Various Viruses Vegetable Weevil Verticillium Wilt Viburnum Borers Viburnum: Black Haw Viburnum: Chinese Snowball Viburnum: Cranberry Viburnum: Doublefile Viburnum: Koreanspice Viburnum: Leatherleaf Viburnum: Liden Viburnum: Mapleleaf Viburnum: Prunifolium Viburnum: Snowball Vinca Violet Virginia Creeper Voles Walnut Blight (bacteria) Walnut Caterpillars Walnut, Black Walnut, English Wasp Watery Soft Rot Weak Wood Weather Conditions Webworms Weevils Weigela White Mold (sclerotinia) White Pine Weevils White Rot White Rust White fly Whiteflies Willow Borers Willow Hornworms Willow Leaf Beetles Willow Scab (fungus) Willow Weed Willow, Corkscrew Willow, Pussy Willow, Weeping Wilt (fungus) Wind Burn Winter Burn Winter Creeper Winter/Snow/Ice Damage Wireworms Wisteria, Chinese Wisteria, Japanese Witch Hazel Gall Aphid Witch Hazel, Fall Witches' Broom (fungus) Wood Rot Woodchucks Wooly Adelgid Wooly Aphids Yarrow Yarrow Yellow Jacket Yellow Patch Yew Young, over fertilized/pruned Zinc Deficiency Zinnia