A little white flower is bringing bright prospects for Rwanda’s economy, and the lives of thousands of small farmers in the process. Last year, Rwanda’s pyrethrum flower production increased from 209 ...

Using digital image analysis, scientists developed a rapid, nondestructive method for determining pyrethrum flower number. The utility of using this approach for biomass assessment in pyrethrum is ...

Pyrethrum is a perennial crop commercially grown for extraction of natural insecticidal compounds (pyrethrins), which accumulate in the achenes of the flower heads. Pyrethrum achenes are densely ...

Pyrethrins are active ingredients extracted from pyrethrum flowers (Tanacetum cinerariifolium), and are the most widely used botanical insecticide. However, several thrips species are commonly found ...

THE pyrethrin content as determined by the chemical process is the only factor that influences the market value of pyrethrum, as it is held that a close relationship exists between the amount of ...

This is a handy biodegradable organic insecticide you can make yourself, says Paul Donovan. About 200 years ago in Asia, it was noticed for the first time that some insects would not visit certain ...

In Kenya, a drive through the Central Highlands will sometimes reveal a landscape covered in a beautiful white-petaled flower with a lethal secret. The yellow center of the Chrysanthemum ...

Every summer, the rugged northern Tasmanian coastline is covered with white blossoms, as fields of pyrethrum, a perennial white daisy, come into bloom. Botanical Resources Australia (BRA) is the world ...