Active ingredient in Bonide Eight dust is permethrin.
Permethrin is labelled as low toxicity in humans and most mammals (but can be harmful in over exposure): It is not known to rapidly harm most mammals or birds, but is dangerously toxic to cats and fish.
Permethrin is highly toxic to both freshwater and estuarine aquatic organisms
(if you use it in your garden it does tend to end up in the water table and eventually in streams, etc)
Permethrin toxicity data show that the compound is highly toxic to honeybees, as well as other beneficial insects.
Definitely not something that would be used in organic gardening where we try to protect eco-systems, beneficial insects, etc.
Here's an article on organic potato beetle control:
At a guess the holes in the leaves of pepper and cabbage plants are damage from slugs. Roundish holes in the middle of leaves? You will never see the slugs in the daytime, but you can go out at night with a flashlight and see what you find. If so, the insecticide doesn't work against them anyway, as they are not insects. Type slug control in the Search the Forum Keyword box to find lots written here about them.