East Sussex, United Kingdom

My husband, thinking he was helping, has inadvertantly put a dilute slug killing substance in liquid form (metaldehyde)on my edible crops of spinach, chard, rocket, runner and dwarf beans, potatoes and also some red onions. Does this mean I will have to pull them out and start again or is there a safe interval between application and eating the crops? They were all growing very well as the garden is sheltered|!

• 9 May, 2010