From which flower does the insecticide 'Pyrethrum' come?
Pyrethrum and farms. For example, they are planted among broccoli plants for protection from several common insect pests. Common names for "Chrysanthemum cinerariifolium" include: Common names for "Chrysanthemum coccineum" include: Pyrethrum Pyrethrum was a genus of several Old World plants now classified as "Chrysanthemum" or "Tanacetum" (e.g., "C. coccineum") which are cultivated as ornamentals for their showy flower heads. Pyrethrum continues to be used as a common name for plants formerly included in the genus "Pyrethrum". Pyrethrum is also the name of a natural insecticide made from the dried flower heads of Chrysanthemum cinerariifolium and Chrysanthemum coccineum. Some members of the
Pyrethrum are all perennial plants with a daisy-like appearance and white petals. Pyrethrum has been used for centuries as an insecticide, and as a lice remedy in the Middle East (Persian powder, also known as "Persian pellitory"). It was sold worldwide under the brand Zacherlin by Austrian industrialist J. Zacherl. It is one of the most commonly used non-synthetic insecticides allowed in certified organic agriculture. The flowers should be dried and then crushed and mixed with water. Rat and rabbit levels for pyrethrum are high (safe), with doses in some cases of about 1% of the animal's body weight required to