Indiana Corn: Extension Asking for Grey Leaf Spot Samples

    Grey leaf spot in corn. Photo: Oklahoma State University

    Dr. Christian Cruz is a new research professor with the Department of Botany and Plant Pathology. He is studying the dynamics of plant disease and epidemiology of crop diseases and in particular grey leaf spot and northern corn leaf blight in corn.

    His lab is looking to establish a collection of isolates of these two diseases from across the state for epidemiological work that could be the basis for developing strategies to manage GLS in the future.

    If you have one or both of these diseases in your field and would like to assist Dr. Cruz, please send samples to the address below or contact him to have his technician or student to help collect and pick up the samples.

    When sending samples please send 4-5 leaves in dry paper bags or newspaper and include the following information.

    Sampling information

    Date of collection:
    Location:
    County:
    Cultivar:

    Handling and shipping: Please wrap the sample in dry paper bags or newspaper. Ship to Dr. Christian Cruz. Dept. of Botany and Plant Pathology, 915 W State St, West Lafayette, IN 47907

    Please contact Dr. Cruz (765.494.1515 cd-cruz@purdue.edu) or Dr. Darcy Telenko (765.496.5168 dtelenko@purdue.edu) if you have any further questions.

    Example of Grey Leaf Spot

    Figure 1. Grey leaf spot lesions on corn. (Photo Credit: Darcy Telenko) Click Image to Enlarge

    Figure 2. Northern corn leaf blight – cigar shaped lesion on corn. (Photo Credit: Darcy Telenko)

    Figure 2. Northern corn leaf blight – cigar shaped lesion on corn. (Photo Credit: Darcy Telenko) Click Image to Enlarge




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