Root knot nematode disease

Root knot disease is prevalent throughout most of New South Wales.

A great many broad-leafed plants are susceptible to infection.

Grasses are affected less often and show little obvious knotting.

In cultivated crops, the disease is important in the growing of tobacco, tomatoes and many other vegetables, stone fruits, vines and cut flowers.

In the production of propagating material and nursery stock constant attention is needed to prevent infection.

This Factsheet covers the following topics:

• Cause
• Symptoms
• Nematode life-cycle
• Infection and spread
• Control
• Registered fumigant and non-fumigant nematicides in NSW