Slugs and Snails chew up your garden plants and you run to Google a solution to find – use egg shells, feed them citrus, sprinkle copper, use coffee and the best one is use Beer Trap. You will try one of these and end up getting disappointed – Why ? – because this is not a permanent solution ! Its because you have not found a permanent cause to this problem and so slugs and snails will keep coming back every year.The real problem lies in your soil, its nutrition balance – its not with the snails. What’s causing problem is the excessive Phosphate in the soil as a result of over using “Compost” – yes that’s correct, there is a thing like over-composting which causes problems related with excessive P and K which sends the nutrients out of balance.

To keep things short and offer you a solution, this is what you should do :
1. Stop putting compost, at least for a year.
2. Use a biological product like Sujeev PSB to solubilise the phosphate in the soil.
3. Foliar Spray Magnesium as excess Phosphate will tie up if you give Magnesium by fertigation. A product like PolyCarb Mg gets absorbed faster than Magnesium Sulphate.
4. Check for Sulphur, Zinc and Manganese levels in the soil as they are antagonised by excess P levels and may need to be topped up.
Frankly, you don’t need a Pesticides to kill those Slugs and Snails because its a Nutrition imbalance problem so solve it with nutrition.