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How to Control Root-Knot Nematodes Organically

Root-knot nematodes are serious pests in the garden that you never see—but you definitely see the havoc they wreak on plants.

In nematode-infested soil, they cause slow or stunted growth, damaged or deformed root crops, and weird bumps on roots that look like knots.

Here’s how you can win the war against these microscopic pests—organically.

Avoid susceptible crops

Root-knot nematodes definitely have a preference for certain crops more than others. Even in the same bed, there may be heavily infected plants growing just a few feet away from others that are virtually untouched.

Avoid growing these vegetables in nematode-infested soil, as they’re generally more susceptible to root damage:

– Chard – Beets – Carrots – Tomatoes – Peppers – Cucumbers – Summer squash – Winter squash

Dispose of all infected plants

If you find nematode-damaged plants, be sure to pull up the entire plant—including all of the roots—and dispose of the plant debris.

If the plant dies (or is pulled from the soil), then the nematodes die with it since they’re incapable of movement once they start feeding. (Don’t get too excited though, because there will still be eggs in the soil that can hatch.)

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