Industrial & Crops· Tanacetum cinerariifolium
Guide de culture du Pyrethrum
Perennial daisy-like plant whose flowers contain pyrethrins — natural insecticidal compounds that are the basis for many organic pest control products. Grown primarily in East Africa.
Conditions de croissance
Exigences du sol
Type de sol et pH
Meilleurs types de sol : loam, volcanic, well-drained
Plage de pH : 5.5 - 7 (optimal : 6)
Drainage : good
Besoins en nutriments (N-P-K)
Guide de plantation
Rendement et économie
Ravageurs et maladies courants
Ravageurs courants
- aphids
- cutworms
- nematodes
Maladies courantes
- crown rot
- root rot
- ray blight
Utilisez la pour identifier les problèmes tôt et prévenir les pertes de récolte.
Conseils de culture
Harvest flowers when ray florets are fully open and disc florets are just beginning to open for maximum pyrethrin content (1.0-1.8% of dry weight).
Pyrethrum performs best at higher elevations (1500-3000 m) in tropical regions, where cooler temperatures optimize pyrethrin synthesis.
Dry harvested flowers rapidly in shade or at low temperatures (below 50C) to preserve pyrethrin potency; sunlight degrades active compounds.
Questions fréquentes
How long does Pyrethrum take to grow?
Pyrethrum typically takes 180 days from planting to harvest. Seeds germinate in about 21 days. The best planting season is spring.
What soil does Pyrethrum need?
Pyrethrum grows best in loam, volcanic, well-drained soil with a pH of 5.5-7. Good drainage is required.
What temperature does Pyrethrum need?
Pyrethrum grows best at 12-22°C. Frost tolerance: light. Heat tolerance: low.
What is the expected yield for Pyrethrum?
Pyrethrum yields approximately 1,200 kg dried flowers/hectare under good conditions.
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