Root Knot Nematodes:Control So if you have correctly identified that your plants are affected by root knot nematodes, what can be done about it? Remember, they look different to nitrogen fixing nodules on roots of plants. tomato nematode Controlling nematodes 1.Cultural Control by rotating your plants-nematodes only survive 1 year in the soil. 2.Growing plants that help reduce nematode numbers Asparagus, peanut plants, Corn, Garlic, marigolds. 3.Biofumigants such as green manure crops, especially     Mustard plants release isothyocyanates. 4. Neem Oil drench   5. Beneficial Nematodes EcoGrow supply beneficial nematodes.    6 Chytosan-prawn shells-effective on nematodes. Listen to the podcast to find out more. Your host  of Real World Gardener, Marianne is talking with Steve McGrane, agriculturist and horticulturist. Part 2 is when  we tackle the many, many ways you have to control the bad nematode, namely root knot nematodes. If you have any questions you can email us [email protected] or write in to 2rrr, PO Box 644 Gladesville NSW 1675.