WSU Extension > Stevens County > Gardening in Stevens County > Plant Pests & Diseases

Plant Pests & Diseases

How to Submit a Sample

WSU Stevens County Extension accepts samples for identification and diagnosis of plant and insect related problems. We provide diagnosis for home and backyard horticulture problems.

You can also email questions with pictures attached to: Ask a Master Gardener – Stevens County Answer/Plant Clinic

Please submit your sample with the appropriate form.

  • 2019 Insect-Plant-Identification (pdf) use when you have actual insects or samples of the damage it caused.
  • 2019 Lawn turf grass diagnosis use for samples related to lawn/turf damage
  • 2019 Plant-Problem-Diagnosis-ornamental-landscapeshome-gardens use this form for any garden or ornamental plant issues
  • 2019 Insect-Plant-Identification (pdf) use for samples of unknown plant/weeds.

Diagnosis for home and backyard horticulture problems will be referred to WSU Master Gardener volunteers. Bring your samples to the Master Gardener Plant Clinic held Tuesday at the WSU Stevens County Extension office from 2:30-4:30pm. If you are not able to bring your sample during clinic hours you can leave your sample at the WSU Stevens County Extension office and samples will be analyzed at the next Master Gardener Plant Clinic.

For more information contact WSU Stevens County Extension at 509.684.2588.

Dog vomit slime mold – fuligo septica

Inspiring the movie The Blob, slime molds can be quite fascinating if not a little bit revolting. They are a “fungus-like organism” that thrives in a wet damp environment. There […]

Fire Blight

Fire Blight – the fire danger you didn’t know about Fire blight effects pear and apple trees and the cause has nothing to do with fire. The infection is actually […]

Thermopsis rhombifolia Nutt. ex Richards

This sample was brought into us out of curiosity. A very large patch is growing in a field where cattle will be turned out. The plant is known as Thermopsis rhombifolia […]

Tent Caterpillar

There are two species of tent caterpillars that can be found in Washington. The western tent caterpillar is most commonly found in western Washington. It attacks a wide range of […]

Leaf Miner

This sample was brought in off of an Aspen tree. Leaf miners devour between the upper and lower surfaces of the leaves. Leaves are still able to perform photosynthesis despite […]

Spindle Gall

Galls are formed from insect/mite feeding or egg laying activity. Mechanical damage or salivary secretions cause increased production of normal plant growth resulting in hypertrophy and hyperplasia. Galls form during […]
Program Icon.

Program Contact

Linda Teller, Extension Coordinator
Phone Number509-684-2588 Email Address • linda.teller@wsu.edu