What can I use for a natural spray to spray on my hostas to stop bugs?

crushed egg shells, copper banding, horticulture oil

Egg shells have been known to help by putting them near or around the plant.

You can make a mix of finely ground garlic powder and Cayanne powder mixed in a spray bottle with water and a couple drops of Dawn, or a natural dish soap. 1-2 tsp per bottle, depending on how big the bottle is. Spray on both sides of the leaves, reapply after a rain once the leaves are dry. This works for garden vegetables too.

If the (bugs) are actually slugs, try crushed eggshells around base of plant, coffee grounds (used) also seems to help. Before hosta leaves get large you can also spray amonia into the plant centers. Good luck, Pelican

Crushed egg shells will help keep the slugs and snails off the hostas, you need enough that they can't get through to crawl up onto the leaves.

I am doing the eggshells plus slug pellets and it doesn’t seem to be slugs but some kind of aphid.

The holes generally come from slugs that invade during the dark hours. You could use a slug pellet bait which you can purchase ans which works well or you can spread around crushed egg shells around the base of the plants.

If you have aphids you can spray with a mix of 40 parts water to one part dish liquid. Leave on for ten minutes and then spray off again. The soap will kill the aphids. I might add too that when hostas are too dry the leaves will also turn brown.

Thank you I will give that a try