Our okra gets heavily infested with RKN. At the end of the season I pull the roots and toss them in the woods being careful to not spread them around. This got me to thinking about 'trap' crops. Of course it may be that plants that nematodes love to feed on results in even more nematodes in the general area so 'trapping' may not be a good idea.
Another idea is to plant marigolds and other nematode suppressant plants as companion plants for nematode susceptible crops. We get great okra crops but late in the season yield really drops off. It may be the buildup of nematode populations loving the high soil temperatures plus have a good host plant.
This year here in zip code 30011 I'm planting a second okra crop maybe mid June and see how the second crop fares. Marygolds may grow under okra if some of the lower leaves are removed. As I rule I don't remove okra leaves until the plant decides to shed them, then I pull the withered leaves.
Here's a photo of our Burmese okra crop seed from SESE, a couple of years ago.
We grew Clemson Spinless last year and like it better as it's not a spiney.
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