Osmanthus fragrans kills mosquitoes.

Osmanthus fragrans is not as effective as cinnamon.

The volatile oil produced by sweet-scented osmanthus, violet, jasmine, lemon, rose, carnation, lily of the valley, crape myrtle and other aromatic flowers has obvious bactericidal effect.

The fragrance of osmanthus fragrans, rose, carnation, lily of the valley, purple Luo and other plants has obvious inhibitory effect on the growth and reproduction of mycobacterium tuberculosis, pneumococcus and staphylococcus.