Case Study: Bleeding Hearts Turn Yellow

Email Exchange with Extension Entomologist

Description Through the state cooperative extension system, Maria is able to contact an ornamental entomologist via email with some basic questions about her crop very soon after she notices the early symptomology. She attaches images and a copy of her scouting records to her e-mail query. Results

Commercial Diagnostic Disease Lab

Description A commercial lab such as Agdia,, has a variety of services that Maria must sort through. She may send a plant sample into the lab or request a test kit that she could use at her greenhouse operation. Assuming Maria elects to send in a

Conversation with Extension Plant Pathologist

Description Maria mails plant samples along with a Plant Diagnostic Checksheet to a university Plant Pathology Diagnostic Lab. Maria sent two plants exhibiting symptomology and one plant that appeared healthy. Diagnostician Judy O’Mara talks through the steps she goes through to sort out the cause of the

Plant Tissue Analysis

Description A plant tissue analysis offers a snapshot of the plant’s tissue nutrient content at the time of sampling. An early analysis allows for deficiencies and toxicities to be detected, and proper corrective actions to be implemented before permanent physiological damage occurs. Unless otherwise specified, the youngest

Water Analysis

Description Maria’s water source is municipal water from a neighboring township. She maintains records of the Water Quality reports sent to her on a yearly basis, but decides to send in a sample to a commercial analytical lab, MDS Harris, in Lincoln, Nebraska since her last report

Acid-based Soil Extraction

Description Acid-based extractions are typically performed on soil samples from fields used for agronomic production; most university soils testing labs affiliated with Agronomy departments used acid-extraction techniques. Linked at right is an example of a submittal form Maria would need to fill out to include with the

Water-based Media Extraction

Description Water-based extractions of soilless root media are simply methods to solubilize nutrients in the root medium so that their concentrations can be measured as an estimate of nutrient availability for uptake by the plant. Water-based extraction procedures include saturated medium extractions (SME), 1:2 medium dilutions, pour-thru

Follow-up Conversation with Extension Horticulturist after completing in-house pH and Electrical Conductivity (EC) tests

Description This conversation occurs February 6th after the initial recommendations by the Extension Horticulturist are followed.Maria has completed a simple 1:2 media extraction (see page four of Floriculture Fact Sheet linked at right). She measured pH and EC with inexpensive hand-held meters that she calibrates prior to

Plant Inspection & Sticky Card Count Record

Description Maria follows the scouting and monitoring methods and as described in an Extension Fact Sheet from Oklahoma State University Cooperative Extension Service (linked at right). By maintaining accurate records, she is able to refer to them when problems arise and build a database of pests, crop

Research Reference Books

Description Although Maria’s reference library includes some very useful books about cut flower production, only a few provided any detailed information about Dicentra sp. as a cut flower. The following excerpts show the information provided in these books. Results Specialty Cut Flowers 2nd Edition Allan M. Armitage

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