Persian powder

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

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

Biological pest control

Persian powder is a green pesticide that has been used for centuries for the biological pest extermination of household insects, garden pests, and agricultural pests.[2] It is used indoors, in gardens and the horticulture industry, and in agriculture.

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.

gollark: You seemed to be suggesting that open source was somehow worse than closed source software for security, which I disagree with.
gollark: <@!707673569802584106> Basically everything uses open source software in some form. If your security is compromised by people knowing how some component of your application works, it is not very secure in the first place.
gollark: <@183773411078569984> Proprietary software can suffer from the whole trusting trust thing exactly as much as open source software.
gollark: It would help a bit. But having supplies for weeks to months of being at home is hard.
gollark: That seems to not always be available, because those services are getting used lots.

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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