Just curious, but have marigolds lost their effectiveness against nematodes?
Shouldn't it still be useful to plant smelly French marigolds around the base of any of the worst affected plants (at least in smaller-sized plots) and later till under the old, bloomed-out marigolds once they've passed their prime, to incorporate some further residual protection into the soil?
Bulk marigold seed should not be all that expensive.
Just pondering marigolds as an alternative option for the smaller fruit grower of whom there are many here on TFF . . .
Paul M.
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