serving as a role model.
Natural Pyrethrins are derived from Chrysanthemums (e.g. common daisies), and are an insecticide of low toxicity that is an important component of the plant’s defense.
However, natural pyrethrins are quite unstable, breaking down quickly when exposed to sunlight. To overcome their limitations, scientists developed a synthetic counterpart that is more potent and stable. Pyrethroid insecticides — such as Permethrin, the active ingredient of BugBlock — are based on the chemistry of the natural pyrethrins.
Both work by targeting the cell membranes of insect nervous systems. By locking these channels, the pyrethroids block normal nerve impulses, ultimately knocking down the insect.