Horticulture Diagnostic Labs

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Gardeners and ornamental horticulture professionals alike may contact our Diagnostic Labs for answers to their questions about plants, gardens, landscapes and lawns. The Labs also offer diagnostic services to help diagnose plant problems and diseases as well as identify insect and tick specimens. You can phone in questions, or drop off samples and specimens for diagnosis or identification.  We have two locations to serve you better: 423 Griffing Ave., Riverhead, NY 11901; information line 631-727-4126 & Bayard Cutting Arboretum, Great River, NY; information line 631-727-4126.

Soil Testing

Homeowners as well as commercial growers and ornamental horticulture professionals alike may have soil tested for pH and conductivity (soluble salts).Results of soil tests are sent to individuals via regular mail or email if you choose. Each report indicates the soil pH, the conductivity reading as well as a rate of limestone (if needed) to raise the soil pH into the correct range for the plants/crops being grown in the sampled soil.

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Submission Forms

Please fill out the appropriate form and include it with your submitted samples. All forms include instructions for submitting samples.New Prices for 2022!

Soil pH Testing Submission Forms

Homeowner/Homegardener

Commercial Horticulture Professional (landscaper, arborist, garden center, etc.)

Commercial Agriculture Grower (vegetables, fruits, nursery stock, sod, greenhouse/container grower)

Cornell Cooperative Extension Publication Order Form


Plant Problem Diagnosis

Herbaceous Plants (Flowers) & Ornamental Grass Problem

Indoor Plant Problem

Lawn Problem

Tree, Shrub, Vine, Groundcover Problem

Tree Fruit & Small Fruit Problem

Vegetable Problem


Insect, Spider & Plant Identification

Insect Identification

Plant Identification

Spider Identification


Tick Identification

Tick Identification

Contact

Alice Raimondo
Horticulture Consultant
aw242@cornell.edu
631-727-4126

Last updated January 18, 2024