pyrethrum | englesko - srpski prevod

pyrethrum

imenicabotanika

Term used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum; Also called: genus Pyrethrum.
1. Made of dried flower heads of pyrethrum plants.
2. White-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum.
Popular name for some flowers of the genus Chrysanthemum, family Compositae. The ornamental species C. coccineum, and hybrids derived from it, are commonly grown in gardens. Pyrethrum powder, made from the dried flower heads of some species, is a powerful contact pesticide for aphids and mosquitoes.
Chrysanthemumlike garden plant; kind of insect powder.

1. buhač

muški rodbotanika

Hrizantema, ova biljka sadrži piretrolon hrizantemium, karbonsku kiselinu ili permitrin koja zaustavlja disanje insekata, a ne deluje na toplokrvna bića. Ova hrizantema je zapravo jedina biljka koja ubija insekte, za razliku od drugih, tzv. repelenata, čiji ih miris samo odbija.

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