New Resource: Field Ready Guides to Help You Tackle Soybean Nematodes

By Stephanie Porter

Managing nematodes isn’t getting easier—but the tools to stay ahead of them are getting better. The SCN Coalition has released a new set of Soybean Nematode Field Guides, all in one place, to help farmers quickly identify nematode threats and protect yield. You can check them out here: https://www.thescncoalition.com/field-guides/

These guides break down the four major nematode groups that impact soybean yield across the U.S.:

• Soybean Cyst Nematode (SCN) – the top yield-robbing pathogen of soybeans, often causing up to 30% loss with no visible above-ground symptoms.
• Root-Knot Nematode (RKN) – widespread and capable of taking a quarter of yield in hot spots.
• Root Lesion Nematode (RLN) – more than 100 species strong and a threat to both soybeans and rotational crops like corn.
• Reniform Nematode – a growing issue in the South, capable of double-digit yield losses.

Each guide offers:

• Clear photos to help with identification
• Management strategies backed by university research
• Tips on sampling, resistant varieties and rotation decisions
• Practical steps tailored for different regions and production systems

Nematodes are often characterized as “silent yield thieves,” but simple, timely testing and management choices can make a big difference. These field guides make it easier to know what you’re dealing with and what to do next.  A little knowledge now can protect a lot of yield later.