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Pest & Disease Library

Spiral Nematodes: How to Identify, Treat & Control Them

Spiral nematodes (Helicotylenchus spp.) are common ecto- and semi-endoparasites that add meaningful root damage on grapes, turf and row crops, especially alongside more aggressive species.

Common crops affected

How to identify it

  • General vigour loss where populations are high
  • Contributes to a mixed-species root-damage complex
  • No galls — assay confirms

Recommended Vegalab solution: Nematode Control

Soil-directed Nematode Control, particularly where spiral nematodes co-occur with root-knot, ring or lesion.

Results you can mention: among the harmful species suppressed under Nematode Control programs in grape trials.

RoleProductUse
Primary controlNematode ControlSoil-applied natural nematicide (drench, drip or in-furrow)
Root recoveryRoot BoostRebuild damaged roots
Soil biologyCharge BioboostSuppressive soil biology
Not sure this is what's affecting your crop? Ask an agronomist about your crop →

Claims and product availability vary by jurisdiction. Always read and follow the product label.

Frequently asked questions

Are spiral nematodes serious on their own?

Usually less than root-knot or ring, but in high numbers or mixed infestations they add significant pressure.