Triazophos

The Uses of Triazophos

Triazophos is used to control chewing and sucking insects and mites in a wide range of crops. It is also used to control some nematodes in ornamentals and strawberries.

The Uses of Triazophos

An organophosphorus insecticide.

The Uses of Triazophos

Pesticide.

Definition

ChEBI: Triazophos is an organic thiophosphate and an organothiophosphate insecticide. It has a role as an EC 3.1.1.7 (acetylcholinesterase) inhibitor, an acaricide, an agrochemical and a nematicide. It is functionally related to a 1-phenyl-1H-1,2,4-triazol-3-ol.

General Description

Yellowish oil. Used to control insects, mites, and nematodes. Not registered as a pesticide in the U.S.

Reactivity Profile

Organophosphates, such as Triazophos, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

Health Hazard

This is an organophosphate pesticide. Triazophos is a cholinesterase inhibitor and acts on the central nervous system. Organic phosphorus insecticides are absorbed by the skin as well as by the respiratory and gastrointestinal tracts.

Fire Hazard

This is an organophosphate pesticide. Some of these materials may burn but none of them ignite readily. Container may explode in heat of fire. Fire may produce irritating or poisonous gases. Degraded by acids and alkalis.

Agricultural Uses

Insecticide: Triazophos is a broad-spectrum insecticide and acaricide used to control sucking and chewing pests on a variety of crops, including cotton, rice, corn, beets and fruit trees. Not currently registered for use in the U.S. Not approved for use in EU countries . There are more than 30 global suppliers .

Trade name

HILAZPOPHOS®; HOE 2960 OJ®; HOE 002960®; HOSTATHION®; SUTATHION®

Metabolic pathway

The main route of biotransformation of triazophos is degradation to 1- pheny1-3-hydroxy-1,2,4-triazole, probably either via hydrolysis of triazophos oxon or through oxidative cleavage of triazophos itself. The triazole ring of this metabolite is opened to give 1-phenylsemicarbazide and semicarbazide, both of which are conjugated in the rat and also degraded to urea as the main urinary metabolite.

Degradation

Triazophos is stable to light but is hydrolysed by acids and alkalis (PM).