Biology:Persian powder
Persian powder is an insecticide powder with natural pyrethrin as the active agent. It is also known as Persian pellitory, insect powder[1] and internationally as pyrethrum.
Biological pest control
Pyrethrin and pyrethroids are 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.[2]
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.
Cultural references
In Beatrix Potter's The Tale of Mr. Tod , Mr. Tod plans to use Persian powder on his mattress to disinfect it after the badger Tommy Brock sleeps on it, uninvited.[3]
See also
- List of pest-repelling plants
- Organic gardening
- Organic farming
References
- ↑ "Webster 1913 definition". http://www.hydroponicsearch.com/spelling/simplesearch/query_term-Persian%20powder/database-!/strategy-exact.
- ↑ US patent 308172, Johann Zacherl, "Pyrethrum Soap", issued 1884-11-18
- ↑ "The Project Gutenberg eBook: The Tale Of Mr. Tod, by Beatrix Potter". https://www.gutenberg.org/files/19805/19805-h/19805-h.htm.
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