when they are around other beetles so you can find where all of them live.
Ladybugs let off an odor to deter predators from attacking them.
they fart out spray
Animals spray to "mark" their territory, and also to deter their predators.
There are over 5000 species of ladybugs. Many of them do contain chemicals which smell and taste bad in order to deter predators; some of them can spray these chemicals when threatened. However, I don't think any of them are actually poisonous.
Ladybugs don't eat plants. They eat the bugs that eat your plants. If they are lurking around your plants, that usually means they have some kind of pest that feeds on plants. Ladybugs are good to have around.
spray them with windex, it woun't hurt the flowers and it will repell bugs and animals
You would typically use pepper spray when you feel like you are in danger from a person or animal. The pepper spray would deter the attacker and allow you the time to get away from them. Many pepper sprays have a dye in them - making it easier to identify the attacker.
The risk and fear of cancer should be enough to deter anyone from smoking cigarettes.
Pepper spray could be effective--there would probably be legal issues for you if you try it though.
There is a type of spray you can purchase from pet stores to spray on the furniture to deter them. You can also clip your cat's nails, since they claw things to file them down, if you do it for them they won't claw.
The anti-climb paint should hopefully deter anyone trying to climb over.This zapper will deter any flies.I try to deter people away from the scene.
Aphids tend to be attracted to dill. They also attract lacewings and ladybugs. Homemade remedies such as essential oils can be used and sprayed around plants to deter insects.