The University of Delaware understands the importance of assaying soil samples for the presence of numerous plant-parasitic nematodes. While some nematode problems can be diagnosed in the field, laboratory assay of soil and roots is typically necessary to confirm field observations and is critical in determining crop rotations. Reading nematode samples requires highly specialized expertise, is time-consuming, and can be costly. The University of Delaware is proud to be able to continue to provide this important and unique service to the mid-Atlantic region. Please know that in order to continue the service, the University of Delaware will need to impose minimal fees to off-set increased costs as of September 1, 2014. These fees will allow us to cover escalating costs associated with labor and supplies. To contain further costs, the assay service is currently only accepting commercial vegetable and field crop samples.