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Pest & Disease Library

Ring Nematodes: How to Identify, Treat & Control Them

Ring nematodes (Mesocriconema xenoplax) are ectoparasites that damage grapes, tree fruit and turf and are linked to bacterial canker and peach-tree short life. On grapes, counts above ~100 per sample signal significant root damage.

Common crops affected

How to identify it

  • Gradual loss of vigour in mature plantings
  • Root weakening that predisposes to canker complexes
  • No galls — diagnosis by assay

Recommended Vegalab solution: Nematode Control

Soil-directed Nematode Control, prioritised in young vineyards and orchards where ring pressure does most damage.

Results you can mention: in turf field testing, ring counts fell substantially (by up to ~100% on some plots) following treatment.

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

Why do ring nematodes matter beyond feeding?

They weaken roots in ways associated with bacterial canker and peach-tree short life, so control protects against secondary decline too.