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Extension

Educational programs offered throughout the year are designed to keep growers current in their areas of interest. Growers learn about new plant varieties, planting techniques, and what grants are available for their operations. Throughout the year there are various field days for growers to have hands on education concerning the crops they are interested in.

 

One meeting that offers something for everyone is the annual Horticulture Industries Show. This two-day meeting provides lectures and a trade show for members of grower associations and newcomers in the following areas: Christmas trees, pecans, tree fruit, small fruit, vegetables, farmers marketing, sustainable agriculture and herb growing. This event is usually held the first or second Friday and Saturday of January and alternates yearly between Tulsa and Fort Smith, Ark. Contact the Tulsa County Cooperative Extension office at (918) 746-3707 in early November for details.

 

Upcoming events are announced on our website calendar, as well as in local newspapers and on local radio programs. Call (918) 746-3700 or sign up for our county newsletter to have your name added to our mailing lists.


Tulsa Master Gardeners

There are Master Gardener programs in 45 states. These programs serve the important function of providing trained volunteers to assist in providing information and support to home gardeners and the community. The Tulsa Master Gardener Program is sponsored, trained and supervised by the OSU Cooperative Extension Service which has offices in all 77 Oklahoma Counties.

 

The principal purpose of the Foundation shall be to organize, maintain, promote, support, encourage and assist with finances that enrich the Master Gardener programs in Tulsa County and its surrounding communities and to promote and educate the public on the benefits of sound and beneficial horticultural practices.

 

For more information on the program, how to become a member, lawn & garden care, events and more, visit the Tulsa Master Gardeners website.

 

Plant Disease Diagnostics

Through the OSU Extension office we can access OSU's Plant Disease Diagnostic Lab as well as discuss problems with experts in the entomology department. Samples are scanned and sent, via e-mail, to the OSU Stillwater campus for a quick, visual analysis and online consulting. If needed, we can then mail in actual samples for further diagnostic analysis. Also available is a digital diagostics database to view information on insects/arthropods and plant diseases.

 

Horticulture - Soil Test Instructions

Before you invest $10 in a soil test, remember the following:

  1. A soil test rarely reveals the sole cause of decline or death in trees and shrubs. In the vast majority of cases, problems with trees and shrubs are due to disease, insects, herbicide damage or poor growing conditions. Examples of poor growing conditions are too wet, too dry, poor drainage, planted in the wrong location (shade plant in sunny area), etc.
  2. Even without a soil test, you can confidently fertilize trees and shrubs with a coated time release fertilizer such as OSMOCOTE (tm) 14-14-14 each spring (April or May) at the rate of 1.5 to 2 pounds per 100 square feet under and around plants.
  3. To help diagnose problems, we have trained Master Gardeners on staff. They can provide you with valuable information on growing trees, shrubs, lawns and gardens in this area. They are on duty Monday through Friday 9 a.m. to 4 p.m. and can be reached at 918-746-3701 or 918-746-3707.

A soil test will provide the pH, N-P-K (nitrogen, phosphorous and potassium levels) of the soil. If you have recently fertilized, you must wait two months before collecting a soil sample for a test.

 

It is very important how a soil sample is collected and brought into the office so please follow the instructions below.

 

Instructions for Taking a Soil Sample

  1. Do not take the top 2 inches of soil. Go down 3 to 6 inches to get soil.
  2. Take samples from 5 or more random areas (more for a bigger area) zig-zagging across. Take a cup of soil from each of these areas.
  3. Mix all samples together in a clean container.
  4. Take 1 pint of soil from the mixture to bring in. Soil must be DRY, with no rocks, sticks or grass in the sample.
  5. Soil tests are $10 each. It takes 2 to 3 weeks to get the results back.

Bring soil samples to the Tulsa County OSU Extension Office, 4116 E. 15th St., (on 15th, between Harvard and Yale) or call (918) 746-3701 for more information. If you print and fill out the online request form, bring it with you to turn in. Request forms are also available at the OSU Extension Office.


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