Product Name: Fenitrothion 50% EC (Emulsifiable Concentrate)

Trade Name: Sumithion
Group: Organophosphate
WHO Toxicity Class: II – Toxic and Harmful
Type: Non-systemic Insecticide/Acaricide with Contact and Ingestive Action

Pre-Harvest Interval (PHI):

• No official pre-harvest interval reported to date.

Application Management:

• Fenitrothion provides moderate residual protection (10–15 days) after application.
• It controls a broad spectrum of chewing and sucking pests, and also exhibits acaricidal properties (effective against mites).
• Commonly used to control weevils, thrips, locusts, caterpillars, beetles, flies, and sucking insects such as aphids, psyllids, scales, and bugs.
• Applied to a wide range of crops including wheat, barley, rice, vegetables, fruit trees, grapes, pistachios, sugarcane, alfalfa, tobacco, cotton, citrus, pastures, and forests in various countries.
• Acts as a cholinesterase inhibitor, reducing acetylcholinesterase activity in insects and causing paralysis and death.

Target Crops and Application Rates:

Compatibility and Safety Notes:

• Avoid repeated applications to prevent resistance.
• Do not mix with strongly alkaline compounds.
• Toxic to fish and bees — avoid application near water sources or during blooming periods.
• Re-entry to treated areas should be avoided for at least 24 hours after spraying.