Chemical profile and mode of action
Dimethoate operates as an anticholinesterase organophosphate insecticide.
- Chemical Group: Organophosphate (IRAC Group 1B).
- Mode of Action: Inhibits acetylcholinesterase (AChE) enzyme, causing acetylcholine buildup, continuous neuro-excitation, paralysis, and death.
- Systemic Translocation: Rapidly absorbed through leaves and stems, translocating acropetally to protect newly expanding vegetative growth.
- Contact and Stomach Action: Destroys target insects both through direct foliar spray contact and ingestion of treated plant sap.
Approved crops and target insect spectrum
Registered under CIBRC label directions across cereals, oilseeds, pulses, and horticulture.
- Cotton: Aphids, jassids (leafhoppers), and thrips.
- Mustard & Oilseeds: Mustard aphids (Lipaphis erysimi) during flowering and siliqua formation stages.
- Chilli & Vegetables: Thrips, aphids, and whiteflies causing leaf curl and yellowing.
- Pulses (Gram, Pigeon Pea): Pod flies and leafhoppers.
- Mango: Mango hopper (Amritodus atkinsoni) during panicle emergence and blossom development.
Safe spraying protocols and precautions
Due to organophosphate toxicity, operators must observe rigorous personal safety standards.
- Wear personal protective gear (rubber gloves, goggles, apron, and respirator) during chemical handling and spraying.
- Honeybee Protection: Highly toxic to bees; avoid spraying during active foraging hours and full bloom periods.
- Incompatibility: Do not mix with alkaline chemicals like Bordeaux mixture or lime sulfur which degrade the active molecule.
- Pre-Harvest Interval: Strictly observe the approved pre-harvest interval (PHI) printed on the package label before harvesting produce.
- Medical Antidote: Keep atropine sulfate accessible as an antidote under qualified medical guidance in case of accidental exposure.
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) ↗Related on KisanPe
Common questions
What is the active chemical ingredient in Rogor insecticide?
Rogor contains Dimethoate 30% EC (Emulsifiable Concentrate), an organophosphate systemic insecticide.
Does Rogor control mustard aphids effectively?
Yes, Dimethoate 30% EC is one of the most widely approved and established systemic insecticides for managing mustard aphid infestations.
Can Rogor be sprayed on flowering vegetables?
Avoid spraying during peak flower bloom because Dimethoate is toxic to honeybees and other vital pollinating insects.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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