Oregon State University Plant Clinic

Home

Plant Disease Diagnosis

• How to submit a sample
• Plant disease sample form
• Sample fees
• Directions to clinic

Insect ID

• Insect ID sample form
• OSU Insect ID Clinic

Plant/Weed Identification

OSU Nematode Testing Service

Information on diseases

• OSU Online Guide to Plant Disease Control
• Monthly highlights
• Diagnoses by county
• Fact sheets
• Problems of stored garlic
• Rhodococcus and Agrobacterium

Personnel

Contact information

BPP Home

 

High Significance Pests for the Western Region (NPDN)

Fungal diseases

Downy mildew of corn and grasses
(Peronosclerospora philippinensis)

Sudden oak death/Ramorum blight and dieback
(Phytophthora ramorum)

Late blight of potato and tomato
(Phytophthora infestans)

Bacterial diseases

Xylella fastidiosa of grapevines and ornamentals
(Xylella fastidiosa)

Bacterial wilt of geranium, potato, and banana
(Ralstonia solanacearum, biovar 2, races 2, 3)

Insects

Fruit fly complex

Gypsy moth complex

Nematodes

Golden nematode
(Globodera spp.)

Weeds

Broomrape
(Orobanche spp.)

 

 

back to NPDN