Cereal Rye (Elbon, not the annual rye used to overseed a lawn) is reported to work as an off season cover crop as the RKN cannot complete its life cycle in the roots. Even if it doesn't, it provides the benefits of a cover crop.
I've read mixed reports of marigold efficacy and some varieties work better than others from what I remember. Some swear by it. If nothing else they add color!
I have this recollection that an Israeli (?) company was working on a biological control...maybe a bacteria? Not finding it quickly on google though.
I may try grafting one of these days. RKN are pretty bad here.
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Blog: chriskafer.wordpress.com
Ignorance more frequently begets knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science. --Charles Darwin
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