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Plants have blue-green leaves and grow to 45 to 100 cm (18 to 39 in) in height. The plant is economically important as a natural source of pyrethrin insecticides. Tanacetum coccineum C. coccineum, the Persian chrysanthemum, is a perennial plant native to Caucasus and looks somewhat like a daisy. It produces large white, pink or red flowers.
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 may first have been exported from Persia to Ancient Rome. Pyrethrin and pyrethroids are used indoors, in gardens and the horticulture industry, and in agriculture.
Pyrethrins have been used as an insecticide for thousands of years. It is believed that the Chinese crushed chrysanthemum plants and used the powder as an insecticide as early as 1000 BC. It was widely known that the Zhou dynasty in China widely used pyrethrin for its insecticide properties. [10]
The 2024 IRAC poster of insecticide modes of action includes the majority of chemicals listed below. [5] The pesticide manual provides much information on pesticides. [6] [7] Many of the insecticides in the list are not in use.
Pyrethrum rapidly knocks down flying insects but has negligible persistence — which is good for the environment but gives poor efficacy when applied in the field. Pyrethroids are essentially chemically stabilized forms of natural pyrethrum and belong to IRAC MoA group 3 (they interfere with sodium transport in insect nerve cells).
Cyhalothrin (ISO common name [3]) is an organic compound that, in specific isomeric forms, is used as a pesticide. [4] It is a pyrethroid, a class of synthetic insecticides that mimic the structure and properties of the naturally occurring insecticide pyrethrin which is present in the flowers of Chrysanthemum cinerariifolium.
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The plant is economically important as a natural source of an insecticide called "pyrethrum." The flowers are pulverized and the active components, called pyrethrins, contained in the seed cases, are extracted and sold in the form of an oleoresin. This is applied as a suspension in water or oil, or as a powder.