No garden for moles

I am open to all methods of fighting mole infestation other than poisons. I looked at some yesterday; the packets all have warnings like "do not use if you have a cat or dog in the garden" or "do not use if you grow berries in your garden". Both apply to us, so no poison. Above: ripening blackcurrants on the edge of the lawn, close to the area of greatest mole intensity. Following last night's attempted to flood the moles out, I woke up to find a further four new moleholes have appeared overnight (two of them pictured right). I responded with a further concerted attack on the moles with high-pressure water. Eddie extended the hose to stretch right across to the far end of the garden, and we poured several cubic metres of water into the other end of the tunnel system. 

Our gardener told me this morning that the mild winter has led to a massive explosion in the mole population and the problem is evident in many of his clients' gardens. Nicole B from Hungary has helpfully suggested I use "holunder", which I discovered in Wikipedia is the German for elderberry. I read: "The crushed foliage and immature fruit have a strong fetid smell" There are elder trees on ul. Kórnicka, along the path leading to the railway track. I shall collect some fetid vegetation and pump it into the tunnel system. Our gardener has suggested keeping 'molewatch' at dusk; half an hour after sunset, lie still on the lawn, wait, watch, listen. And be ready to move fast with the spade.

[The answer, ladies and gents, is human urine, fresh or fermented. Carefully remove the molehill with gloved hands, restoring the lawn, find the entrance to the tunnel network, and pour in the pee. Five, ten litres per hole will do the trick - and do wonders for the grass above the tunnels.]