OBJECTIVE: To investigate & report on the description, lifecycle, occurrence, economic significance, and methods of control of an important disease effecting urban forest trees.

PROCEDURE:

1. Select one of the following forest tree diseases for study:

• Dutch Elm Disease, (Ceratocystis ulmi)
• Elm Phloem Necrosis (elm yellows), (Mycoplasma spp.)
• Dogwood Anthracnose, (Discula destructiva)
• Sycamore Anthracnose, (Apiognomonia veneta)
• Mimosa Wilt, (Fusarium oxysporium var. perniciosum)
• Oak Wilt, (Ceratocystis fagacearum)
• Verticillium Wilt, (Verticillium albo-atrum)
• White Pine root disease, (Verticicladiella procera)
• Powdery Mildew, (Microsphaera spp.) & Leaf blister& Leaf spot (various bacteria)
• Nectria Canker, (Nectria galligena & N. magnoliae)
• Black Knot, (Dibotryon morbosum)
• Bacterial leaf scorch, (Xyllela fastidiosa)
• Crown Gall, (Agrobacterium tumefaciens)
• Phomopsis blight, (Phomopsis juniperovora)
• Cedar Apple Rust, (Gymnosporangium juniperi-virginianae)
• Slime Flux, (various bacteria)
• Phytophthora root and crown rot, (Phytophthora spp.)
• Fire blight, (Erwinia amylovora)
• Armillaria root rot, (Armillaria mellea)

2. The following information MUST be included in your report:

• Description of disease and lifecycle
• Nature and effects of injury caused by disease
• Significance of disease on urban forest environment
• Host plants
• Applicable control methods
• Documentation of the sources used for your report
• Specimen or photo of disease (optional)

3. This report should be at least 3 typed pages. You may be asked to orally present this report before the class.

4. The DUE DATE is ____________________.

 FOR 246

OBJECTIVE: To investigate and report on the description, lifecycle, habits, economic significance, and methods of control of an important insect effecting urban forest trees.

PROCEDURE:

1. Select one of the following urban forest insects for study:

• Eastern Tent Caterpillar, (Malacosoma americanum)
• Fall Cankerworm, (Alsophila pometaria) or Spring Cankerworm, (Paleacrita vernata)
• European Elm Bark Beetle, (Scolytus multistriatus)
• Bronze Birch Borer, (Agrilus anxius)
• Banded Ash Clearwing Borer, (Podosesia aureocinta)
• Rhododendron Whitefly, (Dialeurodes chittendeni)
• Bagworm, (Thyridopteryx ephermeraeformis)
• Spruce Gall Aphid or other aphid, (Chermes spp.)
• White Pine Weevil, (Pissodes strobi)
• Oystershell Scale, (Lepidosaphes ulmi) or Obscure Scale, (Melanaspis obscura)
• Blackheaded Sawfly, (Neodiprion excitans) or Redheaded Pine Sawfly, (Neodiprion lecontei)
• Twolined Chestnut Borer, (Agrilus bilineatrus)
• Fall Webworm, (Hyphantria cunea)
• Walkingstick, (Diapheromera fernorata)
• Oak Lace Bug or other lace bug, (Corythuca arcuata)
• Hemlock Woolly Adelgid, (Adelges tsugae)
• Gouty oak gall, (Callirhytis quercuspunctata)
• Japanese beetle, (Popillia japonica)

 2. The following information MUST be included in your report:

• Insect description, life history and habits
• Nature and effects of injury by insect
• Significance on urban forest environment & economy
• Applicable control methods including Integrated Pest Management
• Host plants
• Documentation of the sources used for this report
• Specimen or photo of insect (optional)

3. Other information that may be included, but is not necessary is as follows:

• Distribution or range of insect
• Detection and sampling methods

4. This report should be at least 3 typed pages. You may be asked to orally present this report before the class.