Latin name: Tanacetum cinerariifolium
Family: Compositae
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| Pyrethrum flowers in Kashmir |
Dalmatian pellitory is not used medicinally, though research has shown that the flowers possess weak antibiotic activity. The flowers are the main source of the insecticide pyrethrum, which is toxic to insects but not to mammals. It has sometimes been used as a vermifuge in China.
The dried flower buds are the source of the insecticide "Pyrethrum". The pyrethrins are produced in the yellow disc florets. The highest pyrethrin content is from the flowers when they are in full bloom (1.22%) and lowest in the preceding period (0.71%). This insecticide also kills many beneficial insects, though it is relatively harmless to mammals. Another report says that it is non-toxic to mammals. It is best used in the evening so that it will have lost much of its virulence by the morning. Steep two handfuls of the dried powdered flowers in one litre of hot water for an hour. This mixture can be either pureed or strained and then used as a spray. Once dried, the flowers or the powder retain their insecticidal properties almost indefinitely. The growing plant can be used as an insect repellent in the garden. Effective against mosquitoes and ants.
Availability : Flower/Seed/Plants
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