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Crop Protection & Pesticides

Monocil Insecticide: Monocrotophos 36 SL Rules & Uses

Monocil is an organophosphate insecticide and acaricide containing Monocrotophos 36% SL, formulated for managing chewing and sucking pests in registered field crops. Because of its high mammalian toxicity and systemic properties, the Central Insecticides Board & Registration Committee (CIBRC) restricts its application to authorized crops, prohibiting its use on vegetables and fruits.

Last reviewed: 10 November 2026

Active ingredient and neurotoxic mode of action

  • Contains Monocrotophos 36% Soluble Liquid (SL), an organophosphorus insecticide and acaricide.
  • Inactivates the enzyme acetylcholinesterase (AChE) in insect nerve junctions, leading to continuous acetylcholine accumulation, tremors, and paralysis.
  • Exhibits both systemic acropetal movement through plant sap and rapid contact/stomach action against chewing and piercing pests.

Approved crops and statutory restrictions

  • Authorized labeled crops: Registered for specified field crops including cotton (bollworms, aphids, thrips), paddy (stem borer, leaf folder), pulses, and plantation crops per CIBRC approvals.
  • Statutory bans: Prohibited from application on vegetables, fruits, tea, and oilseed mustard due to high chemical residue persistence.
  • Environmental safety: Highly toxic to birds and beneficial pollinators; avoid spraying during active bee foraging hours.

Application safety and protective guidelines

  • Handling requirements: Operators must wear personal protective equipment including face respirators, chemical safety goggles, heavy rubber gloves, and rubber boots.
  • Spraying: Apply only at approved label dosages using calibrated spray equipment; never apply with leaking knapsack sprayers.
  • Follow statutory pre-harvest intervals (PHI) strictly, and dispose of empty pesticide containers per CIBRC environmental guidelines.

Official source

Check the latest rules, benefits and forms here. KisanPe is an independent platform and is not a government website.

Central Insecticides Board & Registration Committee (CIBRC) ↗

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Common questions

What is the active ingredient in Monocil insecticide?

Monocil contains Monocrotophos 36% SL (Soluble Liquid).

Is Monocil permitted for use on vegetables and fruits?

No, it is strictly banned on vegetables and fruits by the CIBRC due to high toxicity and chemical residue risks.

What pests does Monocil control in cotton?

It is labeled for bollworms, aphids, jassids, and thrips in cotton crops.

What medical antidote is used for organophosphate poisoning?

Atropine sulphate and Pralidoxime (2-PAM) administered under medical supervision.

General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.

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