Baisifu Professional Supply Pyrethrum Extract Pyrethrum Water-soluble Pyrethrins 50% CAS: 8003-34-7

1.     baisifu professional supply Pyrethrum extract pyrethrum Pyrethrin Pyrethrins1% CAS: 8003-34-7 brown powder for biocide

baisifu professional supply Pyrethrum extract pyrethrum Pyrethrin Pyrethrins1% CAS: 8003-34-7 brown powder for biocide

Insecticidal rapeseed, inchworm special

Special for thrips

Gnathogramma maculata

whitefly

Drosophila melanogaster

For leaf miners

Red and white spider

Special for aphids

Usage: Dilute 500-800 times liquid with water,

Control object: cabbage worm, tea inchworm,

Cotton bollworm, leaf roller, corn borer and other damage

Action characteristics: Using plant extract as raw material, it has toxic effect on thysanoptera pests, destroys the physiological function of thrips, interferes with nervous system, affects neurotransmitter transmission and causes nervous disorders leading to death. The product is efficient, low toxic, safe and pollution-free, and is not easy to produce resistance to pests, and has the effect of promoting the growth of crops.

Applicable crops: tea, tobacco, fruit trees, vegetables, flowers, medicinal materials and other cash crops.

Control objects: tea thrips, smoke thrips, flower thrips, tube thrips, etc

Usage: Dilute 500-800 times the liquid with water, prevent 1000 times the liquid, and prohibit mixing with strong acids and alkalis.

In terms of control, it has strong pertinence to specific pests and little harm to non-target

Safety: low residue or even no residue, easy degradation contributes to the production of green products, low toxicity to humans and animals, safe application

Drug resistance: the composition is complex and the mechanism of action is diverse, and it is not easy to produce drug resistance

Environmental protection: easy to degrade, do not pollute the environment, protect the environment

Prevention and control:

It has strong pertinence to specific pests and little harm to non-target

Safety aspect:

Low residue or even no residue, easy degradation contributes to the production of green products, low toxicity to humans and animals, and safe application

Pure plant protection agent, easy to degrade, no residue, harmless to humans and animals, the product environmental protection safety, no pollution, high efficiency, in line with green ecological agricultural production.

Natural chrysanthemin see the light slowly decomposed into water and CO, so the pesticide or health insecticide prepared with its no residue after use, no side effects on humans and animals, is internationally recognized as the safest pollution-free natural insecticide

Since pyrethrin is composed of six substances with insecticidal activity extracted from pyrethrin flowers, it has a good insecticidal effect, and insects are not easy to produce resistance, and can be used to manufacture pesticides that kill pests with strong resistance.

Pyrethrin has the effect of paralyzing the central nervous system of insects, and it is a contact insecticide, so it kills insects quickly and is easy to be accepted by farmers.

It can be used as a sanitary spray for home hygiene and insecticide, and can be widely used as a pesticide for green vegetables, green fruit, green tea and other cash crops. Pyrethrin inhibits nerve tissue. It is insoluble in water and soluble in a variety of organic solvents. Low toxicity to higher animals,

Although chrysanthemum is easy to cause dermatitis in production and use. Even specific allergies. However, this effect can be eliminated during the preparation of the product. It is toxic to aquatic life such as fish and bees. High insecticidal activity. It is a nerve agent, mainly has a touch effect.

Pyrethrin has two major functions of insecticide and environmental protection, which can not be compared with any chemical insecticide.

Its features and advantages are:

(1) Low toxicity to mammals: pyrethrin is one of the least toxic products of existing pesticides, and it will be quickly metabolized even if accidentally swallowed;

(2) High efficiency and broad spectrum: Because pyrethrin contains a group of insecticidal components with similar structure, it has high efficiency and broad spectrum for insecticidal.

(3) Strong tactility, high fatality rate, and low concentration of use.

(4) Rapid action: pyrethrin has a rapid knockout, blocking valve lethal contact effect.

Property action

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EDITOR

Pyrethrin is prepared from the flower of pyrethrin cultivated by solvent extraction. It is a perennial root plant in the asteraceae family. Pyrethrin (mainly found in flowers) is a typical nerve agent, the main components of which are pyrethrin I and II. Luzica and H. Staudinger were separated. It has the functions of tactility, gastric toxicity and repellent, and can act on peripheral nervous system, central nervous system and other organs and tissues simultaneously. Strong knockout force against pests, wide insecticidal spectrum, low concentration of use, low toxicity to humans and animals, safe to plants and the environment.

Pyrethrin I: Molecular formula C21H28O3; It is a viscous liquid; Boiling point 146 ~ 150 ℃ (0.0005 mm Hg), specific rotation [α] -14° (isooctane); Insoluble in water, soluble in ethanol, petroleum ether, carbon tetrachloride, dichloromethane, nitromethane and other solvents; The median lethal dose was 1.2 g/kg (oral administration in rats). The melting point of its semicarbazone derivatives is 114 ~ 146 ℃ . Pyrethrin I is easily oxidized in the air and loses its insecticidal activity, so it must be refrigerated away from light.

Pyrethrin II: molecular formula C22H28O5; It is a viscous liquid; Easy oxidation failure when exposed to air; Boiling point 192 ~ 193 ℃ (0.007 MMHG), (isooctane-ethyl ether); Its solubility, chemical properties and toxicity are similar to pyrethrin I.

pharmacoidization

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EDITOR

1. Insecticidal effect

Pyrethrin is toxic to a variety of insects such as mosquitoes, flies, bedbugs and cockroaches. Insect exposure to pyrethrin occurs within 1 to 2 minutes of hyperexcitability, dyskinesia, and rapid knockout and paralysis.

Pyrethrin is a typical neurotoxin, which directly acts on excitable membranes, interfering with membrane ion conduction, mainly affecting sodium channels in nerve membranes, delaying the disappearance of increased sodium conduction during excitation, resulting in prolonged transmembrane sodium ion flow, causing repeated activity of sensory nerve fibers and motor nerve axes, temporary nerve cell depolarization and continuous muscle contraction. High concentration can inhibit ion conduction of nerve membrane and block excitation.

2. Toxic effects

Pyrethrin is very low toxic to mammals and is metabolized rapidly in the body, leaving virtually no residue. But this is only when taken orally. Pyrethrin, given intravenously, is highly toxic to mammals. Symptoms of poisoning in vertebrates are similar to those in insects, with hyperexcitability and tremors seen within minutes of medication.

Usage method

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EDITOR

Control fruit aphids, leafhopper and other pests, with 3% pyrethrin cream oil 22.5 ~ 37.5 grams/ha (active ingredient) mixed with water spray. Can also use pyrethrum pollen (dried flower crushed) l kg, neutral soap 0.6 ~ 0.8 kg, water 400 ~ 600 liters after spraying. Methods: Dissolve the soap with a small amount of hot water, add pyrethrin powder, then add enough water, stir evenly after use, can control a variety of aphids, leaf nails, stink bug and other pests.

2. baisifu professional supply Pyrethrum extract Pyrethrum water emulsion Pyrethrin Pyrethrins1.5% CAS: 8003-34-7 milky liquid for biocide

baisifu professional supply Pyrethrum extract pyrethrum Pyrethrin Pyrethrins1% CAS: 8003-34-7 brown powder for biocide

Insecticidal rapeseed, inchworm special

Special for thrips

Gnathogramma maculata

whitefly

Drosophila melanogaster

For leaf miners

Red and white spider

Special for aphids

Usage: Dilute 500-800 times liquid with water,

Control object: cabbage worm, tea inchworm,

Cotton bollworm, leaf roller, corn borer and other damage

Action characteristics: Using plant extract as raw material, it has toxic effect on thysanoptera pests, destroys the physiological function of thrips, interferes with nervous system, affects neurotransmitter transmission and causes nervous disorders leading to death. The product is efficient, low toxic, safe and pollution-free, and is not easy to produce resistance to pests, and has the effect of promoting the growth of crops.

Applicable crops: tea, tobacco, fruit trees, vegetables, flowers, medicinal materials and other cash crops.

Control objects: tea thrips, smoke thrips, flower thrips, tube thrips, etc

Usage: Dilute 500-800 times the liquid with water, prevent 1000 times the liquid, and prohibit mixing with strong acids and alkalis.

In terms of control, it has strong pertinence to specific pests and little harm to non-target

Safety: low residue or even no residue, easy degradation contributes to the production of green products, low toxicity to humans and animals, safe application

Drug resistance: the composition is complex and the mechanism of action is diverse, and it is not easy to produce drug resistance

Environmental protection: easy to degrade, do not pollute the environment, protect the environment

Prevention and control:

It has strong pertinence to specific pests and little harm to non-target

Safety aspect:

Low residue or even no residue, easy degradation contributes to the production of green products, low toxicity to humans and animals, and safe application

Pure plant protection agent, easy to degrade, no residue, harmless to humans and animals, the product environmental protection safety, no pollution, high efficiency, in line with green ecological agricultural production.

Product category: Pesticides biopesticides

Product Description:

1.5% natural pyrethrin Water emulsion - Nanbao Bio

[Product Introduction]

The active ingredient of 1.5% pyrethrin water emulsion is pyrethrin derived from nature, non-chemical synthesis, low toxicity, fast, warm blooded animals, and does not cause environmental pollution. It is effective against mosquitoes and has good repellent effect.

[Product features]

Low toxicity

Because warm-blooded animals have enzymes that can break down pyrethrin, they do not accumulate residues in warm-blooded animals, almost.

Easy to degrade,

Pyrethrin has photosensitive properties and is easily degraded in the environment.

Broad spectrum, no resistance

Insecticidal, broad-spectrum, natural pyrethrin active ingredients include 6 components, the insecticidal mechanism is complex, the mode of action is complex, does not produce resistance.

Quick knockout, quick death

It can quickly strike and kill pests, and has a good repellent effect

[Applicable place]

Houses, homes, garages, basement hospitals, hotels, supermarkets, schools, shops

Amusement parks, parks, golf courses food processing plants, farms

Carport, warehouse pet, animal house, zoo

[Usage method]

1.5% pyrethrin Aqueous Emulsion is an environmentally friendly spatial spray concentrate diluted with water for ultra-low volume spraying directly on target pests

1.5% pyrethrin water emulsion

This product contains six kinds of insecticidal active ingredients, the target is more, belongs to the broad spectrum of pesticides, has a rapid paralyzing effect on pests. It has a rapid paralytic knockout effect. 1.5% pyrethrin aqueous emulsion has stable physical and chemical properties, high biological activity, low toxicity and good environmental compatibility. It is an ideal plant insecticide.

Main ingredients: pyrethrin I (C21H28O3); Pyrethrin II (C22H28O5);

Mechanism of action:

By acting on the nervous system of the pest, it can achieve the rapid knockout effect of the pest. Pyrethrin affects insect excitation conduction, acts on insect sodium ion channels, which can paralyze insect muscles, and also has anti-feeding and repellent effects on pests.

Product advantages:

First, alcohol and water as solvents, fundamentally solve the pollution of organic solvents, and make the dispersion of agents in water better, improve the efficiency of field use

Second, the use of ultraviolet shielding technology, by adding ultraviolet shielding agent, natural synergist, to solve the problem that natural pyrethrin is easy to decompose in the face of light and heat, slow down the speed of natural pyrethrin decomposition under ultraviolet irradiation, extend the quality guarantee period, the effective period can reach about 10 days,

Because mammals have enzymes that can decompose them, they will not accumulate residues in their bodies and are harmless to warm-blooded animals;

Control scope and application method:

Control object

Aphids (cruciferous vegetables)

Suitable crop

Vegetables, tea, fruits, flowers, tobacco, etc

Applicable pest

Cabbage worm, tea small green leafhopper, inchworm, red spider, planthopper, borer, caterpillar, cotton bollworm, scale shell worm, blind bug, spotted fly, yellow mealworm, etc

Specifications: 500ml×20 bottles 1000ml×12 bottles

Use techniques and methods: spray, spray evenly and thoughtfully, effectively kill pests. The control of aphids can be diluted 2000 to 3000 times, and other pests 1000 to 1500 times, and the concentration can be appropriately increased when the resistance of pests is strong or the density of pests is large.

Note:

1, this product is harmful to fish and other aquatic animals, pay attention to the protection of water sources;

2, avoid mixing with alkaline pesticides;

3, if the fire can be used carbon dioxide, dry powder or appropriate foam fire;

4, contaminated clothes or skin, immediately wash with soapy water, if into the eyes, immediately rinse with water, and seek medical treatment in time.

Storage and transportation: Store in a cool, dry and ventilated place, away from strong light and high temperature.

3. baisifu professional supply Pyrethrum extract Pyrethrum water-soluble Pyrethrins 50% CAS: 8003-34-7 yellow liquid for biocide

baisifu professional supply Pyrethrum extract pyrethrum Pyrethrin Pyrethrins1% CAS: 8003-34-7 brown powder for biocide

Insecticidal rapeseed, inchworm special

Special for thrips

Gnathogramma maculata

whitefly

Drosophila melanogaster

For leaf miners

Red and white spider

Special for aphids

Usage: Dilute 500-800 times liquid with water,

Control object: cabbage worm, tea inchworm,

Cotton bollworm, leaf roller, corn borer and other damage

Action characteristics: Using plant extract as raw material, it has toxic effect on thysanoptera pests, destroys the physiological function of thrips, interferes with nervous system, affects neurotransmitter transmission and causes nervous disorders leading to death. The product is efficient, low toxic, safe and pollution-free, and is not easy to produce resistance to pests, and has the effect of promoting the growth of crops.

Applicable crops: tea, tobacco, fruit trees, vegetables, flowers, medicinal materials and other cash crops.

Control objects: tea thrips, smoke thrips, flower thrips, tube thrips, etc

Usage: Dilute 500-800 times the liquid with water, prevent 1000 times the liquid, and prohibit mixing with strong acids and alkalis.

In terms of control, it has strong pertinence to specific pests and little harm to non-target

Safety: low residue or even no residue, easy degradation contributes to the production of green products, low toxicity to humans and animals, safe application

Drug resistance: the composition is complex and the mechanism of action is diverse, and it is not easy to produce drug resistance

Environmental protection: easy to degrade, do not pollute the environment, protect the environment

Prevention and control:

It has strong pertinence to specific pests and little harm to non-target

Safety aspect:

Low residue or even no residue, easy degradation contributes to the production of green products, low toxicity to humans and animals, and safe application

Pure plant protection agent, easy to degrade, no residue, harmless to humans and animals, the product environmental protection safety, no pollution, high efficiency, in line with green ecological agricultural production.

[Product name] Pyrethrum extract

[English name] Pyrethrum Extract

[General name of ingredient] pyrethrin

Pyrethrins

[Other name of ingredients] Pyrethrin, pyrethrin essential oil, pyrethrin extract

【 CAS NO 】 8003-34-7

【 Molecular formula 】 C21H28O3'C22H28O5'C20H28O3

【 Molecular weight 】 328.43, 372.44,316.42

【 Product Shape 】 Light yellow to dark brown liquid

[Product Specification] 50%

Pyrethrum was a genus of several Old World plants now classified in either Chrysanthemum or Tanacetum 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. The insecticidal compounds present in these species are pyrethrins.

Description

[edit]

Some members of the genus Chrysanthemum, such as the following two, are placed in the genus Tanacetum instead by some botanists. Both genera are members of the daisy (or aster) family, Asteraceae. They are all perennial plants with a daisy-like appearance and white petals.

•      Tanacetum cinerariifoliumTanacetum cinerariifolium is called the Dalmatian chrysanthemum, denoting its origin in that region of the Balkans (Dalmatia). It looks more like the common daisy than other pyrethrums do. Its flowers, typically white with yellow centers, grow from numerous fairly rigid stems. 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 coccineumC. 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. The leaves resemble those of ferns, and the plant grows to between 30 and 60 cm (12 and 24 in) in height. The flowering period is June to July in temperate climates (Northern Hemisphere). C. coccineum also contains insecticidal pyrethrins, but it is a poor source compared to C. cinerariifolium.

•      Other species, such as C. balsamita and C. marshalli, also contain insecticidal substances, but are less effective than the two species mentioned above.

Insecticides

[edit]

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. Pyrethrins attack the nervous systems of all insects, and inhibit female mosquitoes from biting. When present in amounts less than those fatal to insects, they still appear to have an insect repellent effect. They are harmful to fish, but are far less toxic to mammals and birds than many synthetic insecticides and are not persistent, being biodegradable and also decompose easily on exposure to light. They are considered to be amongst the safest insecticides for use around food. In 1998 Kenya was producing 90% (over 6,000 tonnes) of the world's pyrethrum, called py for short. Production in Tanzania and Ecuador is also significant. Currently the world's major producer is Tasmania, Australia.

Sprays

[edit]

Pyrethrum has been used for centuries as an insecticide,[1] 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.[2] It is one of the most commonly used non-synthetic insecticides allowed in certified organic agriculture.[3]

The flowers should be dried and then crushed and mixed with water.

•      Pyrethroids are synthetic insecticides based on natural pyrethrum (pyrethrins); one common example is permethrin. Pyrethrins are often sold in preparations that also contain the synthetic chemical piperonyl butoxide, which enhances the toxicity to insects and is faster acting compared with pyrethrins used alone. These formulations are known as synergized pyrethrins.

Companion planting

[edit]

A pheromone produced by these plants attracts ladybug beetles, and at the same time acts as an alarm signal to aphids.

Rat and rabbit LD50 levels for pyrethrum are high, with doses in some cases of about 1% of the animal's body weight required to cause significant mortality. This is similar to fatal levels in synthetic pyrethroids.[5] Nevertheless, pyrethrum should be handled with the same caution as synthetic insecticides:[6] safety equipment should be worn, and mixing with other chemicals should be avoided.[7]

People can be exposed to pyrethrum as a mixture of cinerin, jasmolin, and pyrethrin in the workplace by breathing it in, getting it in the eyes or on the skin, or swallowing it. The Occupational Safety and Health Administration (OSHA) has set the legal limit (Permissible exposure limit) for pyrethrum exposure in the workplace as 5 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a Recommended exposure limit (REL) of 5 mg/m3 over an 8-hour workday. At levels of 5000 mg/m3, pyrethrum is immediately dangerous to life and health. People exposed to pyrethrum may experience symptoms including pruritus (itching), dermatitis, papules, erythema (red skin), rhinorrhea (runny nose), sneezing, and asthma.[8]

Other animals

[edit]

Pyrethrum, specifically

4.  baisifu professional supply Pyrethrum extract Pyrethrum water-soluble Pyrethrins 25% CAS: 8003-34-7 yellow liquid for biocide

baisifu professional supply Pyrethrum extract pyrethrum Pyrethrin Pyrethrins1% CAS: 8003-34-7 brown powder for biocide

Insecticidal rapeseed, inchworm special

Special for thrips

Gnathogramma maculata

whitefly

Drosophila melanogaster

For leaf miners

Red and white spider

Special for aphids

Usage: Dilute 500-800 times liquid with water,

Control object: cabbage worm, tea inchworm,

Cotton bollworm, leaf roller, corn borer and other damage

Action characteristics: Using plant extract as raw material, it has toxic effect on thysanoptera pests, destroys the physiological function of thrips, interferes with nervous system, affects neurotransmitter transmission and causes nervous disorders leading to death. The product is efficient, low toxic, safe and pollution-free, and is not easy to produce resistance to pests, and has the effect of promoting the growth of crops.

Applicable crops: tea, tobacco, fruit trees, vegetables, flowers, medicinal materials and other cash crops.

Control objects: tea thrips, smoke thrips, flower thrips, tube thrips, etc

Usage: Dilute 500-800 times the liquid with water, prevent 1000 times the liquid, and prohibit mixing with strong acids and alkalis.

In terms of control, it has strong pertinence to specific pests and little harm to non-target

Safety: low residue or even no residue, easy degradation contributes to the production of green products, low toxicity to humans and animals, safe application

Drug resistance: the composition is complex and the mechanism of action is diverse, and it is not easy to produce drug resistance

Environmental protection: easy to degrade, do not pollute the environment, protect the environment

Prevention and control:

It has strong pertinence to specific pests and little harm to non-target

Safety aspect:

Low residue or even no residue, easy degradation contributes to the production of green products, low toxicity to humans and animals, and safe application

Pure plant protection agent, easy to degrade, no residue, harmless to humans and animals, the product environmental protection safety, no pollution, high efficiency, in line with green ecological agricultural production.

Some members of the genus Chrysanthemum, such as the following two, are placed in the genus Tanacetum instead by some botanists. Both genera are members of the daisy (or aster) family, Asteraceae. They are all perennial plants with a daisy-like appearance and white petals.

•      Tanacetum cinerariifoliumTanacetum cinerariifolium is called the Dalmatian chrysanthemum, denoting its origin in that region of the Balkans (Dalmatia). It looks more like the common daisy than other pyrethrums do. Its flowers, typically white with yellow centers, grow from numerous fairly rigid stems. 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 coccineumC. 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. The leaves resemble those of ferns, and the plant grows to between 30 and 60 cm (12 and 24 in) in height. The flowering period is June to July in temperate climates (Northern Hemisphere). C. coccineum also contains insecticidal pyrethrins, but it is a poor source compared to C. cinerariifolium.

•      Other species, such as C. balsamita and C. marshalli, also contain insecticidal substances, but are less effective than the two species mentioned above.

Insecticides

[edit]

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. Pyrethrins attack the nervous systems of all insects, and inhibit female mosquitoes from biting. When present in amounts less than those fatal to insects, they still appear to have an insect repellent effect. They are harmful to fish, but are far less toxic to mammals and birds than many synthetic insecticides and are not persistent, being biodegradable and also decompose easily on exposure to light. They are considered to be amongst the safest insecticides for use around food. In 1998 Kenya was producing 90% (over 6,000 tonnes) of the world's pyrethrum, called py for short. Production in Tanzania and Ecuador is also significant. Currently the world's major producer is Tasmania, Australia.

Sprays

[edit]

Pyrethrum has been used for centuries as an insecticide,[1] 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.[2] It is one of the most commonly used non-synthetic insecticides allowed in certified organic agriculture.[3]

The flowers should be dried and then crushed and mixed with water.

•      Pyrethroids are synthetic insecticides based on natural pyrethrum (pyrethrins); one common example is permethrin. Pyrethrins are often sold in preparations that also contain the synthetic chemical piperonyl butoxide, which enhances the toxicity to insects and is faster acting compared with pyrethrins used alone. These formulations are known as synergized pyrethrins.

Companion planting

[edit]

A pheromone produced by these plants attracts ladybug beetles, and at the same time acts as an alarm signal to aphids.

Rat and rabbit LD50 levels for pyrethrum are high, with doses in some cases of about 1% of the animal's body weight required to cause significant mortality. This is similar to fatal levels in synthetic pyrethroids.[5] Nevertheless, pyrethrum should be handled with the same caution as synthetic insecticides:[6] safety equipment should be worn, and mixing with other chemicals should be avoided.[7]

People can be exposed to pyrethrum as a mixture of cinerin, jasmolin, and pyrethrin in the workplace by breathing it in, getting it in the eyes or on the skin, or swallowing it. The Occupational Safety and Health Administration (OSHA) has set the legal limit (Permissible exposure limit) for pyrethrum exposure in the workplace as 5 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a Recommended exposure limit (REL) of 5 mg/m3 over an 8-hour workday. At levels of 5000 mg/m3, pyrethrum is immediately dangerous to life and health. People exposed to pyrethrum may experience symptoms including pruritus (itching), dermatitis, papules, erythema (red skin), rhinorrhea (runny nose), sneezing, and asthma.[8]

Other animals

[edit]

Pyrethrum, specifically