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Persian powder

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The term Persian powder can also refer to a type of dry snow in the Zagros Mountains.

Persian powder is an insecticide powder. It is also known as Persian pellitory and insect powder.[1]

Biological pest control

It is produced from the powdered flowers of certain species of pyrethrum, plants in the genera Chrysanthemum and Tanacetum. In more recent times it has had formulations with brand names such as Zacherlin.[3]

Synthetic forms

Pyrethroids are synthetic insecticides based on natural pyrethrum (pyrethrins), such as permethrin.

A common formulation of pyrethrin is in preparations containing the synthetic chemical piperonyl butoxide: this has the effect of enhancing the toxicity to insects and speeding the effects when compared with pyrethrins used alone. These formulations are known as synergized pyrethrins.

See also

References

  1. ^ Webster 1913 definition
  2. ^ Bioaromatica The history of pyrethrum Archived 2010-03-24 at the Wayback Machine
  3. ^ US patent 308172, Johann Zacherl, "Pyrethrum Soap", issued 1884-11-18


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