Originally Posted by 44DCNF
Mustard seed. From a brassica. Turning brassica leaves into the garden soil is supposed to be a good way to prevent nematodes from attacking roots and root veggies. Sounds like something to look into further. Derive an extract from kale, mustard greens, cabbage, etc. maybe cabbage juice diluted and sprayed would be worth a trial.
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...Maybe throw some Habenero in there. Ya know, light em on fire while we make life unbearable for them in our lawns.