Household ammonia is reported to be great for controlling slugs. Some people spray the slugs directly and apparently it kills them. Others spray plants so slugs stop eating them. Spraying soil is also a common method of controlling slugs and snails.
Do these methods work?
Ammonia is a strong cleaning agent and it surprises me that spraying it on plants will not harm them, but maybe the dilution used is low enough to prevent damage. If that is true, what is the ‘safe’ dilution ratio?
