Plants use chemicals to ward off competition. Sometimes this means smelling very bad to keep other animals from eating it or it's surroundings.
DDT and PPC.
He tried to ward off the evil spirits.
It's not that there is anything in caffeine that kills plants, it is the caffeine itself. Caffeine is a toxin produced by some plants to ward off predators, but is lethal to plant cells when artificially introduced.
Nasturtium. Nasturtium are a common flower often used in vegetable gardens to ward off pests from the veggie plants.
nothing can ward off a vampire bat its impossible.
Um, they're just thought to ward off evil in general.
This repellent did not ward off the mosquitoes very well.
to get rid of it
yes it is. it is a medium strength ward but an even better ward is milk and lemon.
Plants give off oxygen, what we humans need for survival. Cut them more, and we'll all die. :)
to get rid of it
In order to ward off evil medieval architects created gargoyles. This technique is referred to as apotropaism.