A plant species of the genus CHRYSANTHEMUM, family ASTERACEAE. The flowers contain PYRETHRINS, cinerolones, and chrysanthemines which are powerful contact insecticides. Most in the old Pyrethrum genus are reclassified to TANACETUM; some to other ASTERACEAE genera.
The active insecticidal constituent of CHRYSANTHEMUM CINERARIIFOLIUM flowers. Pyrethrin I is the pyretholone ester of chrysanthemummonocarboxylic acid and pyrethrin II is the pyretholone ester of chrysanthemumdicarboxylic acid monomethyl ester.
An order of very small, fringed-wing INSECTS including many agricultural pests.
Substances causing insects to turn away from them or reject them as food.
Pesticides designed to control insects that are harmful to man. The insects may be directly harmful, as those acting as disease vectors, or indirectly harmful, as destroyers of crops, food products, or textile fabrics.
Lice of the genus Pediculus, family Pediculidae. Pediculus humanus corporus is the human body louse and Pediculus humanus capitis is the human head louse.
An insecticide synergist, especially for pyrethroids and ROTENONE.
Parasitic attack or subsistence on the skin by members of the order Phthiraptera, especially on humans by Pediculus humanus of the family Pediculidae. The hair of the head, eyelashes, and pubis is a frequent site of infestation. (From Dorland, 28th ed; Stedman, 26th ed)
Facilities which provide information concerning poisons and treatment of poisoning in emergencies.
A condition or physical state produced by the ingestion, injection, inhalation of or exposure to a deleterious agent.
The process of laying or shedding fully developed eggs (OVA) from the female body. The term is usually used for certain INSECTS or FISHES with an organ called ovipositor where eggs are stored or deposited before expulsion from the body.
Institutions which provide medical or health-related services.
The fleshy or dry ripened ovary of a plant, enclosing the seed or seeds.
A food group comprised of EDIBLE PLANTS or their parts.
Chemicals that, while not possessing inherent pesticidal activity, nonetheless promote or enhance the effectiveness of other pesticides when combined.
Porphyrins with four acetic acid and four propionic acid side chains attached to the pyrrole rings.
A wide spectrum aliphatic organophosphate insecticide widely used for both domestic and commercial agricultural purposes.
Activity involved in transfer of goods from producer to consumer or in the exchange of services.
Detailed account or statement or formal record of data resulting from empirical inquiry.
The development by insects of resistance to insecticides.
Hair grooming, cleansing and modifying products meant for topical application to hair, usually human. They include sprays, bleaches, dyes, conditioners, rinses, shampoos, nutrient lotions, etc.
Parasitic attack by members of the order SIPHONAPTERA.