Plant Diagnostic Lab
Univeristy of Maryland Extension

Plant Diagnositc Lab banner UMD Extension College of Chemical & Life Sciences AGNR

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The University of Maryland Plant Diagnostic Laboratory

Established in 1979, the University of Maryland Plant Diagnostic Laboratory (PDL) provides plant problem diagnosis in support of Maryland Cooperative Extension programs in agriculture and horticulture.

San Jose Scale

San Jose Scale on Apple,
a scale insect sometimes
mistaken for a disease.
Note red ring
around each insect.

Since 2002, the lab has also been an active participant in the National Plant Diagnostic Network, which links together land-grant university plant diagnostic laboratories for the purpose of rapid detection of exotic and invasive plant pest species which pose a threat to US agriculture. Laboratory staff also conduct educational programs on plant pathology topics for various audiences, and prepare fact sheets and other materials related to plant disease management.

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To report problems or write comments about the PDL website, please contact: rane@umd.edu

 
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