Insecticides, CAS No. : 122453-73-0

Active ingredient

Chlorfenapyr 

Chemical name

4-bromo-2-(4-chlorophenyl)-1-(ethoxymethyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile

Classification

Acaricide  / Agrochemical

Biochemistry

Oxidative removal in vivo of the N-ethoxymethyl group generates the active species, which is a mitochondrial uncoupler.

Mode of action

Insecticide and acaricide with mainly stomach and some contact action. Exhibits good translaminar but limited systemic activity in plants.

Usage

Control of many species of insects and mites, including those resistant to carbamate, organophosphate and pyrethroid insecticides and also chitin-synthesis inhibitors, in cotton, vegetables, citrus, top fruit, vines and soya beans. Among pests resistant to
conventional products which are controlled by chlorfenapyr are Brevipalpus phoenicis (leprosis mite), Leptinotarsa decemlineata (Colorado potato beetle), Helicoverpa spp., Heliothis spp., Plutella xylostella (diamond-back moth) and Tetranychus spp. Also
control of many species of structural and household Formicidae (especially Camponotus, Iridomyrmex, Monomorium, and Solenopsis), Blattellidae (especially Blatta, Blattella, Periplaneta and Supella spp.), Kalotermitidae (especially Incisitermes) and
Rhinotermitidae (especially Reticulitermes, Coptotermes, Heterotermes) at use rates of between 0.125 to 0.50% a.i. w/w

Mammalian Toxicology

Oral Acute oral LD50 for male rats 441, female rats 1152 mg tech./kg. Skin and eye Acute percutaneous LD50 for rabbits >2000 mg/kg. Moderate eye irritant; non-irritating to skin (rabbits). Inhalation LC50 for rats 1.9 mg tech./l air.