After that, we treat each Potent insecticide as young as three of the worm
The first, we prepared The dried seeds (400g) of S. foetida was milled to fine powder in an
electric grinder, homogenized, and finally extracted with acetone at room temperature for 3 days. The resultant material was filtered, and concentrated in a rotary evaporator under reduced pressure. The resultant residue was stored at -20 0 C until use.