EXTRACTION OF PYRETHRINS FROM Chrysanthemumcinerariaefolium PETALS AND STUDY ITS ACTIVITY AGAINSTBEETLE FLOUR Tribolium castanum

Abstract

The production of Pyrethrins as an insecticide from Chrysanthemum
cinerariaefolium flowers was studied. The crude active compound was extracted
using organic solvents. Detection by HPLC proved that the extract contained
Pyrethrin I and Pyrethrin II compared to the standard compounds. The flowers
extract showed active biological effect against beetle flour Tribolium castanum
reached 100% at the concentration 40% while the mortality percent reached 60, 77%
when the concentration decreased to 20 or 30% respectively.