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Information for scouting vineyards and
diagnosing problems
Home > pest management > scouting vineyards and diagnosing problems  
The following information about common diseases, physiological and chemical disorders, and insect pest and beneficial species can assist with vineyard scouting and problem diagnosis. A handy pocket-sized guide with this information can be purchased in English or Spanish from MSU Extension. Or for assistance with identification, contact one of the diagnosticians at MSU Diagnostic Services by e-mail or phone.

For current in-season advice and updates, see MSU Extension's Fruit Crop Advisory Team (CAT) Alert newsletters.

Go to on this page:
Common diseases
Physiological and chemical disorders
Insect and mite pests
Beneficial insects and mites

View slide presentations:
Spring 2004 IPM Workshop

Printable forms:
Vineyard IPM Scouting form (Download Adobe Acrobat Reader to view PDF files)

Grape scouting guide
Common diseases (alphabetical listing)
Fungal diseases
Powdery mildew
Downy mildew
Black rot
Phomopsis cane and leaf spot
Anthracnose
Botrytis bunch rot
Sour bunch rot
Bitter rot
Ripe rot
Angular leaf scorch
Septoria leaf spot
Leaf blotch
Tar spot
Eutypa dieback
Grapevine decline or Esca
Armillaria root rot
Flyspeck
Bacterial diseases
Crown gall
Pierce's disease

Virus and virus-like diseases
Tomato/tobacco ringspot virus decline
Peach rosette mosaic virus decline
Fanleaf degeneration
Leafroll
Rupestris stem pitting
Flavescence dorée
Nematodes
Nematodes
Physiological and chemical disorders (alphabetical listing)
Chemical injury
Diuron injury
Simazine injury
Glyphosate injury
Phenoxy herbicide (2,4-D) injury
Paraquat injury
Pesticide spray injury
Copper injury
Abiotic vine condition
Sun scald
Bird damage
Lack of fruit set
Ozone injury
Hail damage
Bunch stem necrosis
Spring freeze injury
Winter injury
Chimera
Guttation
Pearl bodies
Lightning
Sour soil
Nutrient deficiency
Manganese deficiency
Nitrogen deficiency
Potassium deficiency
Magnesium deficiency
Boron deficiency
Iron deficiency
Insect and mite pests (alphabetical listing)
Pests of buds
Climbing cutworms
Grape flea beetle
Pests of shoots
Grape cane girdler
Grape cane gallmaker
Mite pests of leaves
Twospotted spider mite
European red mite
Grape erineum mite
Insect pests of leaves
About leafhoppers
Potato leafhopper
Grape leafhopper
Rose chafer
Japanese beetle
About gallmakers
Gallmakers on leaves
Hornworms
Pests of fruit
Grape berry moth
Grape mealybug
Banded grape bug
Pests during harvest
Yellowjackets
Fruit flies
Ants
Multi-colored Asian ladybeetles
Pests of roots
Grape phylloxera
Grape root borer
Grape rootworm
Beneficial insects and mites (alphabetical listing)
About natural enemies
Assassin bugs
Braconids
Damsel bug
Lacewings
Ground beetle
Ichneumonids
Lady beetles
Minute pirate bug
Multi-colored Asian ladybeetle
Parasitic wasps
Predatory mites
Robber fly
Shield bugs
Spiders
Syrphid fly
Tachinid fly
Trichogramma wasps

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Funding for this web site provided by Project GREEEN, American Farmland Trust, EPA Region 5's Strategic Agricultural Initiative program, The National Foundation for IPM Education, the Center for Agricultural Partnerships and the MSU Integrated Pest Management Program
in collaboration with MSU Extension and the Michigan Agricultural Experiment Station.
05/27/09 Contact: J.N. Landis.
     
Michigan Agricultural Experiment Station Michigan State University Extension