Nematology

The Purdue Nematode Diagnostic Laboratory is closed.

Please join us in welcoming Dr. Lei Zhang as our new Nematologist at Purdue University (Find Dr. Zhang's lab here!). Dr. Zhang is an Assistant Professor of Nematology at Purdue University, with a joint appointment between Department of Botany & Plant Pathology and Department of Entomology. Dr. Zhang received his PhD in Molecular Plant Sciences at Washington State University (WSU) and then conducted postdoctoral research on plant-parasitic nematodes at North Carolina State University and WSU. Dr. Zhang’s research program at Purdue will focus on studying plant-parasitic nematodes causing serious crop yield losses in Indiana, including soybean cyst nematode and root-knot nematodes. Dr. Zhang’s interest includes basic research on molecular plant-nematode interactions, and translational research on nematode management and diagnostics. The overarching goal of research is to develop effective and sustainable tactics for nematode control in agriculture.

Many people are familiar with animal parasitic nematodes such as Ascaris and Trichinella because they are relatively large and easily visible. Other kinds of nematodes parasitize insects and are used in management of insect pests. Most plant parasitic nematodes however, are not visible with a naked eye and require special equipment and training for their recognition. Plant parasitic nematodes may be categorized based on their feeding behavior and their hosts. Most plant parasitic nematodes feed on root systems of plants while a few are able to feed on the above ground parts. Some nematodes can cause significant economic losses without any visible symptoms on the plants. Some nematodes, e.g., root knot nematodes, have broad host ranges and are widespread around the world, whereas others, like soybean cyst nematode, are relatively host specific. In Indiana, soybean cyst nematode is the most important plant-parasitic nematode in soybean, root-knot nematodes are serious pests of tomato and melons, and needle nematode is problematic in corn.

We are NOT taking any more soil samples. Here are some laboratories in the NC Region that offer testing.

Featured Story

Featured Story

Two researchers seated at a conference table smile at the camera while holding nuts and trail mix.
Purdue researchers identify infrastructure and communication challenges as barriers to food safety in the low-moisture food industry

WEST LAFAYETTE, Ind. — Low-moisture foods such as dried fruits, seeds, tree nuts and wheat flour were once considered to carry minimal microbial risks. However, the increased number of outbreaks linked to bacteria-contaminated low-moisture...

Read More
Two researchers seated at a conference table smile at the camera while holding nuts and trail mix.
Purdue researchers identify infrastructure and communication challenges as barriers to food safety in the low-moisture food industry

WEST LAFAYETTE, Ind. — Low-moisture foods such as dried fruits, seeds, tree nuts and wheat...

Read More
The exterior of Stewart Center, located on Purdue University’s West Lafayette campus.
Moving at the speed of technology: Purdue to host the 2025 Pest Management Conference

WEST LAFAYETTE, Ind. — Purdue University’s Center for Urban and Industrial Pest...

Read More
A silhouette of a man’s face in front of a computer screen displaying a UV map with green, yellow and red lines.
Purdue’s Institute for Digital and Advanced Agricultural Systems to cultivate innovation at upcoming panel and networking event

WEST LAFAYETTE, Ind. — Purdue University’s Institute for Digital and Advanced...

Read More
Close up photo of soybean plant leaf, stem, and flower bunch
Advancements in genomic research reveal alternative transcription initiation sites in thousands of soybean genes

In 2010, Jianxin Ma, a professor of agronomy, and his collaborators built the first reference...

Read More
People viewing research poster
2024 BPP Research Showcase

Held on November 13 at the Beck Agricultural Center, the 2024 Research Showcase highlights...

Read More
2018 master's alumnus Daniel Bird sits at a computer; the cover art Bird created for the special Indigenous Wildlife Management in North America issue of The Journal of Wildlife Management
Master's Alum Daniel Bird Contributes to Indigenous Wildlife Management Journal Issue

Daniel Bird, who was raised on the Santo Domingo-Kewa Pueblo Reservation in New Mexico and is an...

Read More