2011 Plant Health Care Reports
Insects
• Bagworms
• Hemlock needle miner
• Woolly alder aphid
• Arborvitae leafminer
Miscellaneous
• Winter damage
• Salt damage
Feature article: What are degree days and why do we care about them anyway? by Donna Danielson, M.S.
• Bagworms
• Hemlock needle miner
• Woolly alder aphid
• Arborvitae leafminer
Miscellaneous
• Winter damage
• Salt damage
Feature article: What are degree days and why do we care about them anyway? by Donna Danielson, M.S.
| 4-8-11_2011.1.pdf |
Insects
• Eastern tent caterpillar
• Zimmerman pine moth
• Hemlock needle miner
Diseases
• Diplodia (Sphaeropsis) tip blight on pine
• Dothistroma tip blight on pine
• Eastern tent caterpillar
• Zimmerman pine moth
• Hemlock needle miner
Diseases
• Diplodia (Sphaeropsis) tip blight on pine
• Dothistroma tip blight on pine
| 4-22-11_2011.2.pdf |
Issue 3: juniper webworm, larch casebearer, pine needle scale, pine bark adelgid, phytophthora root rot, caliciopsis pinea, fireblight, brown rot of stone fruit, cedar quince rust
| 5-6-11_2011.3.pdf |
Insects
• Tulip tree scale
• Boxwood psyllid
• Elm leafminer
• European elm flea weevil
Diseases
• Phomopsis gall on forsythia
• Rhizosphaeria needle cast on spruce
• Tulip tree scale
• Boxwood psyllid
• Elm leafminer
• European elm flea weevil
Diseases
• Phomopsis gall on forsythia
• Rhizosphaeria needle cast on spruce
| may_13_2011_issue_2011.04.pdf |
Insects
• Aphids
Diseases
• Sycamore anthracnose
• Apple scab
• Peachleaf curl
• Black knot
• Rose rosette
• Aphids
Diseases
• Sycamore anthracnose
• Apple scab
• Peachleaf curl
• Black knot
• Rose rosette
| may_20_2011__issue_2011.05.pdf |
Insects
• Hemlock rust mites
• Honeylocust podgall midge
• Galls
• Maple bladder gall
• Spindle gall on linden
• Erineum gall on linden
• Oak apple gall
• Spring and fall cankerworms
• European pine sawfly
• Euonymus webworm
Diseases
• Fusarium meristemoides
• Cedar apple and hawthorn rusts
• Hemlock rust mites
• Honeylocust podgall midge
• Galls
• Maple bladder gall
• Spindle gall on linden
• Erineum gall on linden
• Oak apple gall
• Spring and fall cankerworms
• European pine sawfly
• Euonymus webworm
Diseases
• Fusarium meristemoides
• Cedar apple and hawthorn rusts
| may_27_2011_issue_2011.06.pdf |
Insects
• Hydrangea bud gall
• Phyllorexa gall
• Aesculus leafminer
• Alder leafminer
• Calico scale
• Bristly roseslug sawfly
• Spittle bug
• Oystershell scale
Diseases
• Filbert blight
• Powdery mildew
• Buckthorn rust
• Oak leaf blister
Abiotic problems
• Oak leaf tatters
• Hydrangea bud gall
• Phyllorexa gall
• Aesculus leafminer
• Alder leafminer
• Calico scale
• Bristly roseslug sawfly
• Spittle bug
• Oystershell scale
Diseases
• Filbert blight
• Powdery mildew
• Buckthorn rust
• Oak leaf blister
Abiotic problems
• Oak leaf tatters
| june_3_2011_issue_2011.07.pdf |
Insects
• Honeylocust plant bug
• Spruce needleminer
• Imported currant worm
• Ash-lilac borer
• Holly leafminer
• Emerald ash borer
Diseases
• Ash anthracnose
• Oak anthracnose
Abiotic problems
• Chlorosis of pin oak
• Frost damage
• Honeylocust plant bug
• Spruce needleminer
• Imported currant worm
• Ash-lilac borer
• Holly leafminer
• Emerald ash borer
Diseases
• Ash anthracnose
• Oak anthracnose
Abiotic problems
• Chlorosis of pin oak
• Frost damage
| phcr_june_10_2011issue_2011.08.pdf |
Insects
• Birch leafminer
• Oak leafroller
• Viburnum crown borer
• Dogwood sawfly
• Tarnished plant bug
• Membracid nymph
• Sumac flea beetle
• Pine false webworm
• Hackberry nipple gall
• Roseslug sawfly
Diseases
• Cedar rust leaf spots on rosaceous hosts
• Microstroma juglandis
• Maple anthracnose
• Black spot on rose
Abiotic problems
• Seasonal needle drop of Chamecyparis
• Birch leafminer
• Oak leafroller
• Viburnum crown borer
• Dogwood sawfly
• Tarnished plant bug
• Membracid nymph
• Sumac flea beetle
• Pine false webworm
• Hackberry nipple gall
• Roseslug sawfly
Diseases
• Cedar rust leaf spots on rosaceous hosts
• Microstroma juglandis
• Maple anthracnose
• Black spot on rose
Abiotic problems
• Seasonal needle drop of Chamecyparis
| phcr_june_17_2011_issue_2011.09.pdf |
Insects
• Thrips
• Linden looper
• Ash flower gall
Diseases
• Phomopsis tip blight
• Powdery mildew
• Chicken of the woods (Laetiporus sulphureus)
• Thrips
• Linden looper
• Ash flower gall
Diseases
• Phomopsis tip blight
• Powdery mildew
• Chicken of the woods (Laetiporus sulphureus)
| june_24_2011_issue_2011.10.pdf |
Insects
• Japanese beetles
• Linden looper
• Columbine leafminer
• Lecanium scale
• Jumping oak gall
• Imported willow leaf beetle
• Slugs
• Japanese beetles
• Linden looper
• Columbine leafminer
• Lecanium scale
• Jumping oak gall
• Imported willow leaf beetle
• Slugs
| july_1_2011_issue_2011.11.pdf |
Insects
• Cypress twig galls
• Spiny witch-hazel aphid
• Cynipid galls on elm
• Pine tube moth
Diseases
• Tobacco mosaic virus on tomato
• Sooty mold
Abiotic
• Chlorosis
• Abiotic and bacterial leaf scorch
• Cypress twig galls
• Spiny witch-hazel aphid
• Cynipid galls on elm
• Pine tube moth
Diseases
• Tobacco mosaic virus on tomato
• Sooty mold
Abiotic
• Chlorosis
• Abiotic and bacterial leaf scorch
| july_8_2011_issue_2011.12.pdf |
Insects
• Pipevine swallowtail caterpillar
• Black vine weevil
• Earwigs
• Elm leafminer
• Red milkweed beetle
• Bagworm
• Annual cicada
Diseases
• Mosaic virus on hackberry
• Dutch elm disease
• Measles on peon
Fungi
• Fuligo septic (i.e. dog vomit slime mold)
• Pipevine swallowtail caterpillar
• Black vine weevil
• Earwigs
• Elm leafminer
• Red milkweed beetle
• Bagworm
• Annual cicada
Diseases
• Mosaic virus on hackberry
• Dutch elm disease
• Measles on peon
Fungi
• Fuligo septic (i.e. dog vomit slime mold)
| july_15_2011_issue_2011.13.pdf |
Insects
• Two-spotted spider mite
• Honeysuckle aphid
Diseases
• Cedar hawthorn rust on fruit
• Septoria leaf spot
• Thyronectria canker
Fungi
• Stinkhorns
Abiotics
• Remontant flowers
• Two-spotted spider mite
• Honeysuckle aphid
Diseases
• Cedar hawthorn rust on fruit
• Septoria leaf spot
• Thyronectria canker
Fungi
• Stinkhorns
Abiotics
• Remontant flowers
| july_22_2011_issue_2011.14.pdf |
Insects
• Gypsy moths
• Mourning cloak butterfly
Diseases
• Phomopsis tip blight
• Pythium tip blight
• Volutella on boxwood
• Gypsy moths
• Mourning cloak butterfly
Diseases
• Phomopsis tip blight
• Pythium tip blight
• Volutella on boxwood
| july_29_2011_issue_2011.15.pdf |
Insects
• Sycamore tussock moth caterpillar
• Goldenrod leaf gall midge
• Goldenrod ball gall
• European fruit lecanium scale on locust and elm
• Fall webworm
• Sycamore lace bug
• Wool sower leaf gall on pin oak
• Sycamore tussock moth caterpillar
• Goldenrod leaf gall midge
• Goldenrod ball gall
• European fruit lecanium scale on locust and elm
• Fall webworm
• Sycamore lace bug
• Wool sower leaf gall on pin oak
| august_12_2011_issue_2011.16.pdf |
Insects
• Spider mite on Rhus chinensis
• Cynipid wasp gall on white oak
• Oak bullet gall on white oak
• Black walnut petiole gall
Diseases
• Lily-of-the-valley anthracnose
• Powdery mildew on 'Ann' magnolia
• Septoria leaf spot on hydrangea
• Flower blighting on Silphium
2011 Disease and Insect Review
An Ounce of Prevention in the Autumn By Stephanie Adams
Report Contributors
• Spider mite on Rhus chinensis
• Cynipid wasp gall on white oak
• Oak bullet gall on white oak
• Black walnut petiole gall
Diseases
• Lily-of-the-valley anthracnose
• Powdery mildew on 'Ann' magnolia
• Septoria leaf spot on hydrangea
• Flower blighting on Silphium
2011 Disease and Insect Review
An Ounce of Prevention in the Autumn By Stephanie Adams
Report Contributors
| 8-26-2011_issue_2011.17.pdf |
Following is an index of the various subjects in this year’s report. The number after each subject is the report number. For example, using the chart below, Anthracnose, oak 6 means that it was discussed in the PHC report 2010.06 or the newsletter dated May 15 - 21, 2010.
| phcr_2011_index.pdf |