I need it for my investigatory project. I need some plants that can be used as organic pesticide or insecticide such as neem but I need to use other plants.
Please dont give me chrysanthemum as an example because it is too expensive here in the Philippines. I know that it contains pyrethrum. Sorry for the one who answer chrysanthemum.
I suggest you give me cheap plants
A chemical like chrysanthemic acid is naturally occurring in chrysanthemums. A few months ago, I went down to the local nursery and they were selling a chrysanthemum relative that supposedly made its own prethrin-type pesticide. Go and check.
Also – nicotine has insecticidal properties against some insects. Grow your own tobacco plant. Be careful, though. Nicotine is also poisonous to people and pets.