Someone on here recommended cat litter (the gritty kind). I found it worked up to a point, so I have sprinkled the little blue pellets as well and the damage is minimal. Mind you, most things on my plot were started at home and transferred, and fitted with a slug collar ( plastic pop bottle sliced so you are left with a tube, a 2 ltr bottle makes two, then make a fringe round the top by snipping at intervals, bend out slightly and fit over plant when it is planted out.)Nothing worked for my sunflowers at home, though.Only 1 left :( All the ones I gave away are flourishing ::))