hosta destruction

Question

my hostas are regularly destroyed,and I never seem to find the culprits[snails or slugs]I am almost certain they are being attacked by aiborne insects,[species unknown].last year I tried vinegar and water with little success,this year I am considering a garlic wash,but I am conserned about the smell it may leave,[the garden I maintain is a communal garden so I have to consider other residents].any advice would be halpful

Answer 1

Slugs and snails are rarely seen, as they come in the night.
These links will help you.
https://www.gardeningknowhow.com/ornamental/foliage/hosta/hosta-problems.htm
https://www.gardeningknowhow.com/ornamental/foliage/hosta/hosta-pest-control.htm