2001 Plant Health Care Reports
Winter weather, European pine sawfly, Gypsy moth egg masses, Juniper Webworm, Dothistroma needle blight
Feature article: "So what are degree days and why do we care about them anyway?" by Donna Danielson
Rust mites on hemlock, Larch casebearers, Arborvitae leafminer, Cytospora canker, Cedar-apple and cedar-hawthorn rust, Black knot, Wetwood or slime flux, Stop pruning your oaks!
Eastern tent caterpillars, European pine sawfly larvae, Spruce needle miner damage, Cedar rust diseases, Salt injury, European pine sawfly, spruce spider mites.
Featured article: "Woody Plants Tolerant of Wet Sites", by Timothy Boland, M.S.
Honey locust plant bug, Euonymus webworms, Distinguishing caterpillars from sawfly larvae, Elm leafminer adults, Four-lined plant bug, Lilac/Ash borer adults, Boxwood psyllids, Leafrollers, Ash plant bug, Eriophyid mite galls, Ash anthracnose, Elm bark beetles, Pestalotiopsis blight, Garlic mustard
Pine needle scale crawlers, Azalea sawfly larvae, Azalea bark scale, Erineum galls, Leaf crumpler, Early elm leaf miners, Vein pocket galls, Alder leafminer adults, Spittle bugs, Bacterial leaf spot on lilac, Monilinia brown rot, Black rot canker, Artillery fungus
Featured article: "The Importance of Mulching", by Joseph Krol
Roseslug sawfly larvae, Euonymus scale crawlers, Aphids, Woolly alder aphids, Other sawfly larvae, Larch adelgids, Hawthorn leafminers, Alder leafminers, Linden loopers, Hackberry witches broom, Animal damage
Featured article: "Plants for Shade Gardening", by Susan Wiegrefe, Ph.D.
Maple petiole borer, Lady bird beetle larvae, Leafhopper (probably potato leafhopper), Spiny oak sawfly, Horned spanworm, Thrips, Tussock moth, Oblique banded leafrollers caught in pheromone traps, Oak anthracnose, Virus on ash, Cedar hawthorn rust on hawthorn, Entomosporium leaf spot, Spot anthracnose, Orange rust, Oak leaf blister, Dutch elm disease, Gypsy moth
Imported currantworm, Arborvitae leafminers, Spiny elm caterpillars, Larch sawflies, Honeysuckle aphids, Lecanium scale adults, Red admiral butterflies, Armillaria rot, Dutch elm disease, Frogeye leaf spot on Malus, Sycamore anthracnose, Oak anthracnose, Elm yellows (phloem necrosis).
Borers, Two-marked treehoppers, Galls on willow twigs, Spirea aphids, Polyphemous moth, Black vine weevil damagem Black spot of elm, Apple scab, Cedar-quince rust on stem, Phyllosticta on sugar maple, Elegant stinkhorn, Fusarium canker, Peach leaf curl
Feature article: "Determining the Health of Your Soil", by Daniel Thorpe
Oak slug sawfly, Question mark caterpillar, Oblique banded leafroller, Fire blight, Verticillium wilt, Leaf blight on witch hazel. Black spot of rose, Island chlorosis, Black rot of grapevine, Botryosphaerai canker. crown gall.
Locust borer damage, Cecropia moth adults, Peach tree borers, Cottonwood leaf beetles, Red milkweed beetles, Pipevine swallowtail larvae, Solitary oak leafminer, Elm and alder leafminer damage, Maple anthracnose, Botryosphaeria canker, Guignardia on Aesculus glabra, Anthracnose on Maackia, Armyworm moths on linden blossoms, Hawthorne mealybugs.
Japanese beetles, Magnolia scale, Lecanium scale crawlers, Genista caterpillar, Cypress twig galls, Thistle caterpillar or painted lady caterpillar, Powdery mildew, Rose rosette disease, Cercospora leaf spot on catalpa
Featured article: "Saprophyte or parasite?" by Donna Danielson
European elm scale, Lace bug nymphs, Rust mites on bald-cypress, Melampsora rust, Carpenter bees, Bagworms
Mossyrose galls, Two-marked treehopper adults, Japanese beetles, Leaf blotch of Tilia, Bullseye leaf spot (Cristulariella), Powdery mildew on leaves, Anthracnose on Ostrya, Chlorosis, Leaf cutter bees, Fletcher scale, Dothistroma needle blight, Brown spot needle blight
Feature article: "Biological Control: Utilizing Living Organisms to Control Living Organisms"By Daniel Thorpe
Yellow-necked caterpillars, Two spotted spider mites, American painted ladies on licorice plant, Lace bug adults, Japanese beetle on purple loosestrife, Pigeon tremex, Sphaeropsis on pine, Phoma leaf spot, Septoria, Measles on peony, Drought stress, Gypsy moth adults
Feature article: "IPM Propagation ‑ Use of Horticultural Oils in Taxus Propagation", by Peter Linsner
Fall webworm, Southern masked chafers, Walnut caterpillars, Black rot on parthenociccus, Walnut anthracnose, Currant borer damage, Fire Fox caused by Armillaria root rot
Ailanthus webworm, Two marked treehoppers are laying eggs, Botryosphaeria canker, Alternaria blight, Tar spot of maple
Feature article: "Describing Urban Tree Problems: A Quantification Approach, Also known as THE RULE OF 80", by Dr. George Ware
Pale tussock moth, Leafhoppers, Bagworm, White lined sphinx moth, Hummingbird moths, Japanese beetles on dawn redwoods, Cedar-apple rust galls, Leaf spots caused by Polystigmina fungus
Feature article: "It’s Beetle Time!", by Angela Hewitt
American dagger moth, Mealybugs on magnolia, Cucumber beetles, Cicada skins, Butternut canker, Ash anthracnose, Sphaeropsis on douglas-fir, Gypsy moth adults
Polyphemous moth caterpillar, Pennsylvania leather-wings, Five spotted hawk moth (Tomato hornworm adult), Ailanthus webworm,Magnolia scale crawlers, Fire blight, Clematis wilt, Jack-O’Lantern mushrooms, Eastern or western gall rust
Feature article: "Armillaria root rot and native oaks", by Karel Jacobs
Viceroy caterpillar, Thyronectria canker, Powdery mildew on dogwood, Cedar-apple rust on crabapples, Herbicide injury on redbud
9-05-2001 - Issue 22 and Index
Magnolia scale, Cucumber beetles, corn rootworm beetles, 2001 Index
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