Those of you who listen to Gardeners' Question Time on Radio 4 might have heard reference to garlic spray as a way of controlling aphids.
It might therefore be of
interest to you that the allotment shop now has Aston Garberry 2 in
Aston Garberry 2, a Solufeed product, is a combined garlic barrier and
plant invigorator. Applied as a foliar feed, it offers protection from
infestation from aphids and spider mite while enhancing growth. The garlic
extract leaves no after taste on edible crops.
And since the ingredients are
plant derived, the good news is that you can use this product if you garden organically :-)