Nematode Species Identification Diagnosis Available

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Beginning November 2019, the N.C. Department of Agriculture & Consumer Services Agronomic Division (NCDA&CS) will provide molecular species identification. This diagnosis is the only way to identify most nematodes for those wishing to manage varietal crop resistance or identify the new root knot species in this area, the Guava root knot nematode (Meloidogyne enterolobii).

Fees for this service is $20 per sample. The NCDA&CS Agronomic Division recommends that growers only submit three to five molecular diagnostic samples per farm. Each sample should represent a different field on the farm. A good sample will come from a mixture of multiple soil cores collected randomly across a field or known hot spots. Molecular diagnostic samples should be sent to the lab in a shipper marked clearly on the outside as “Molecular Diagnosis” to ensure expedited service. Molecular diagnostic samples should never be put on the same sample information form or placed in the same shipper as routine predictive or diagnostic samples.

Growers should continue to sample to monitor nematodes through predictive samples. This fee is o$3 per sample for those within state. Do not place routine samples or mail routine samples with those requesting Molecular Diagnosis. Guidelines for sampling, submission, fees and other information is listed below. Additional information can be found at the NCDA & CS Agronomic Division.

Molecular Diagnosis Fee Increase Notice