Pyrethrum Sprays

Pyrethrum Radix in Alopecia

Pyrethrum flowers and pyrethroid insecticides.

The natural pyrethrins from the daisy-like flower, Tanacetum or Chrysanthemum cinerariifolium, are nonpersistent insecticides of low toxicity to mammals. Synthetic analogs or pyrethroids, evolved from the natural compounds by successive isosteric modifications, are more potent and stable and are the newest important class of crop protection chemicals. They retain many of the favorable propertie...

Pyrethrum : Nature ' s Pesticide

Pyrethrum is derived from the dried flowers of the plant Tanacetum cinerariifolium. The name given to the active insecticidal components of the dried flowers is "pyrethrins". Tasmanian pyrethrum production is among the most innovative, high-tech agricultural industries in the world. With an output that nearly quadrupled since 1996, Botanical Resources Australia (BRA) now supplies more then 30% ...

Treatment of Scabies and Pediculosis with Pyrethrum

Structure of Evaporating Diesel Sprays

Performance of compression ignition engine is known to be spray characteristics related. Precise experimental information on fuel sprays is of utmost importance to model the fuel spray formation and its development in the engine combustion chamber. The previous experimental work of the present author on non-evaporating sprays produced by using a FIAT single-hole orifice type nozzle and a distri...