Raised bed root knot nematodes

Asked February 23, 2016, 9:09 PM EST

I have a 4'x8'x1' raised bed and found what I'm fairly certain was nematode damage on my carrots. What now? Should I simply replace the soil mix? If so, would it be ok to broadcast it in a wooded part of my yard? Other options? When replacing the soil, what do you recommend? No pics.

Anne Arundel County Maryland

1 Response

Replacing the soil is not a bad idea, however do not spread it around your landscape. The nematodes can become active on many plants. Dispose of the soil. Here is our Grow It Eat It info on nematodes: http://extension.umd.edu/growit/root-knot-nematodes-vegetables-0

It is generally not hot enough in Maryland to do soil sterilization, but if the plot is hot enough--and raised beds are hotter than ground soil--you could try it. You'd lose a growing season, however.

Replace the soil with a mix of top soil and organic soil amendments.