try he
http://www2.dpi.qld.gov.au/horticulture/5406.html
Laboratory and glasshouse experiments examined the inhibition effects of
molasses on root-knot nematodes.

Terry & Angela wrote:
We have a few tomatoe plants in the garden (various varieties) but they
don't fruit very well also the leaves keep dying I heard something on the
radio the other day about something in the soil and putting diluted molasses
on it but Ididn't catch it all can anybody help.

Thanks
Terry & Angela