This nematode is a migratory ectoparasite that also causes root galling except these galls are at the root tip. Compare these galls with those of root-knot. The damage by this nematode on roots is difficult to detect by observation in the field. A slight thickening along their length is present. The best symptom is that when the infested roots are washed they appear dirty.
Uninfested roots appear a clear yellow.
This nematode affects a large percentage of California citrus. The damage is subtile.