> Research at OSU has shown that potting soil with added vermi-compost,
> up to 20%, effectively reduce plants susceptibility to aphids (that
> is by enhancing plant health, plants' resistance to pests and
> diseases is significantly enhanced). This research was done in small
> greenhouses.
Good one!
I just had a thought: what about a mini-guild? Maybe some chives in
the pot along with the plant?