Plant Disease Clinic : 1995 Summary -- 1996 Reminders

The Plant Disease Clinic provides diagnostic support for county and area Extension personnel and the citizens of Iowa. In 1995, the Clinic received a record 2,878 plant samples for diagnosis. Trees accounted for the majority of the samples received (52.3%). In 1995 the Clinic received 60% of its plant samples from Extension personnel. Theremainder of the samples were submitted directly by homeowners or commercial growers.

The majority of the samples (86%) were mailed to the Clinic. The remaining samples weredelivered by the clients in person.

Diagnosis and disease management strategies are provided for the samples received. The majority of the plant samples are diagnosed free of charge. If culturing is required, such as in the case of oak wilt or Dutch elm disease testing, a $5.00 fee is assessed.

A complete summary of the samples received by the Clinic, including a list of common diseases, can be obtained by contacting Carla Harris, Extension Plant Pathology secretary, at 515-294-1160 or contact her via e-mail at x1charri@exnet.iastate.edu.

Please include PD-31 "Plant Disease Identification Form" with plant samples submitted for problem diagnosis. When an infectious disease problem is not evident, we rely on detailed background information about site conditions, care practices, weather conditions, etc. to pinpoint the primary cause of the problem.

A good sample is also important. Refer to Pm-1542 "Tips for Providing Plant Insect Samples to ISU" for information on collecting a plant sample. These free publications are available from your local Extension office or from Publications Distribution, Iowa State University, Ames, IA 50011; telephone 515-294-5247.

This article originally appeared in the February 9, 1996 issue, p. 14.

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