Pesticide databaseInsecticidesChecked 2026-10-01

Pyrethrins 除虫菊の抽出物（ピレトリン）

Natural and microbial products (including those allowed under organic JAS)Registered in JapanAllowed under organic JAS (with conditions)WHO IIApproved in the EU

Natural and microbial products (including those allowed under organic JAS): BT products (proteins made by bacteria), pyrethrum extracts, machine oil, starch and others.

In Japan

Registration: Registered as a pesticide (first registered October 20, 1948). 4 formulated products contain it.
Main registered crops: cucumber, eggplant, cabbage, strawberry, rose, tomato and others (15 crop names in the registered uses)
Toxicity class: Active ingredient: Ordinary substance
Classes of the 4 formulated products (diluted products sold): ordinary substance 4
Classes under Japan's Poisonous and Deleterious Substances Control Act.
ADI (acceptable daily intake): No risk assessment report by the Food Safety Commission of Japan was found

ADI: the amount considered to have no effect on health even if eaten every day for a lifetime. ARfD: the amount considered to have no effect on health when eaten at one time (within 24 hours). Both are set by the Food Safety Commission of Japan, mainly from animal studies.

In Japan's national residue testing (fiscal 2024)

Produce	Detected / tested	Detection rate	Over the limit
Domestic	0 / 64	0.0%	0
Imported	0 / 29	0.0%	0

Tests are counted as pesticide × sample. Any detection counts as “detected” — it does not mean the limit was exceeded. For pesticides outside the top 20, figures are summed from the food-by-food tables of the full report.

Evaluations abroad

WHO acute toxicity class: II (Moderately hazardous), LD50 500-1000 mg/kg
Based on the toxicity of the undiluted active ingredient given once, mainly to rats by mouth (LD50 = the dose that kills half; the smaller, the stronger the acute toxicity). It is not an assessment of the safety of residues in food.
EU: Approved in the EU (approval expires April 2028)
EU ADI: 0.04 mg/kg bw/day; ARfD: 0.2 mg/kg bw
IARC (carcinogenicity): No matching entry in the IARC list (not evaluated or out of scope, including Group 3)

Good to know

A component of pyrethrum flowers. Under organic JAS, it can be used only as pyrethrum emulsifiable concentrates or pyrethrin emulsifiable concentrates that do not contain the synergist piperonyl butoxide.

Related explainers

Sources

Last checked 2026-10-01. Registrations and evaluations change over time. This page is a translation of our Japanese page; if they differ, the Japanese page is the reference.

Pesticides registered in Japan are approved by the government with set crops, amounts, numbers of applications and days before harvest. This page lists facts stated in laws and in evaluations by public bodies; it does not judge whether anything is good or bad.

Other Natural and microbial products (including those allowed under organic JAS)

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