Phoxim is a broad-spectrum organophosphate insecticide primarily used for the control of various insect pests in crops and livestock. Known for its strong contact and stomach action, Phoxim is highly effective against a wide range of chewing and sucking insects. It is commonly used on cereals, vegetables, and ornamental plants, and it plays a key role in controlling ectoparasites in veterinary practices, especially in swine and poultry.
Chemical Name: O,O-Diethyl O-(alpha-cyanobenzylideneamino)phosphorothioate
CAS Number: 14816-18-3
Molecular Formula: C12H15N2O3PS
Formulations: EC (emulsifiable concentrate), GR (granules), pour-on (veterinary use)
Appearance: Pale yellow to amber clear liquid
⚡ Fast knockdown effect on a broad range of pests
Effective in both agricultural and veterinary settings
Acts by inhibiting cholinesterase in insects’ nervous systems
Particularly effective against lice, mites, and fleas in livestock
Low phytotoxicity when used as directed
Usage Area | Target Pests | Application Method |
---|---|---|
Field crops (corn, rice, vegetables) | Aphids, caterpillars, beetles | Foliar spray |
Ornamental plants | Whiteflies, thrips, leafhoppers | Misting or low-pressure spray |
Livestock (pigs, poultry) | Lice, fleas, mites | Pour-on, spray, or dip |
Mode of Action
Phoxim works as a cholinesterase inhibitor, interfering with nerve signal transmission in insects, leading to overstimulation, paralysis, and death. It provides both contact and stomach poison activity, making it effective through direct spray or ingestion by the insect.
✅ Strong contact action with quick pest knockdown
Dual-use for both agriculture and animal husbandry
Easy to formulate and apply
Minimal resistance development when rotated appropriately
️ Long-lasting residual effect under moderate conditions
⚠️ Toxic to beneficial insects such as bees—avoid spraying during flowering
⛔ Moderate toxicity to mammals—handle with care
️ Wash-off potential under heavy rain conditions
Reapplication may be needed depending on pest pressure
Always use gloves and protective gear when handling
Avoid contamination of water sources
Antidote: Atropine sulfate is recommended in case of poisoning
Store in a sealed container, away from direct sunlight and children
Q: Can Phoxim be used in organic farming?
A: No, Phoxim is a synthetic organophosphate and is not allowed in certified organic production.
Q: Is Phoxim systemic?
A: While not highly systemic, it does exhibit slight translaminar movement and provides some internal protection when absorbed by leaves or skin (in veterinary use).
Q: How long does Phoxim remain active after application?
A: Residual activity typically lasts 7–10 days, depending on environmental conditions.
Phoxim is a reliable insecticide for rapid control of a broad range of pests in both crops and animals. Its quick action, versatility, and dual contact/stomach mode of action make it a go-to solution for professionals in agriculture and veterinary medicine alike. As always, it should be used responsibly and in compliance with local regulations and safety guidelines.