Chemical Mode of Action and Pest Spectrum
Phenthoate (IRAC Group 1B) acts as an inhibitor of the acetylcholinesterase (AChE) enzyme in insect nerve synapses. By blocking AChE, it causes neuroexcitation, rapid muscular twitching, paralysis, and death.
It combines quick knockdown with significant ovicidal action, destroying freshly deposited insect egg clusters directly upon contact.
- Cotton: American bollworm, spotted bollworm, pink bollworm, and aphid complexes.
- Rice: Yellow stem borer, leaf folder, and green leafhopper.
- Pulses: Gram pod borer and leaf-eating caterpillars in chickpea and pigeonpea.
- Fast contact knockdown: Paralyzes feeding caterpillars quickly, preventing extensive foliar defoliation.
Application Standards and Handling Precautions
Phendal 50 EC should be applied when scouting indicates pest populations approaching economic threshold levels (ETL).
Applicators must follow safety guidelines to prevent dermal exposure and protect non-target beneficial fauna.
- Calibrate spray equipment using hollow cone nozzles to achieve complete canopy wetting.
- Wear protective nitrile gloves, boots, chemical goggles, and an organic vapor mask during mixing and spraying.
- Do not apply near aquatic bodies or fish ponds, as organophosphates are toxic to aquatic organisms.
- Observe the pre-harvest withholding interval before picking fresh produce.
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 ↗Related on KisanPe
Common questions
What is the active ingredient in Phendal 50 EC?
Phendal 50 EC contains Phenthoate 50% EC, a broad-spectrum organophosphate insecticide.
Does Phenthoate insecticide kill insect eggs?
Yes, Phenthoate exhibits strong ovicidal properties, destroying insect egg masses on foliage upon direct contact.
What crops are approved for Phendal 50 EC in India?
It is registered for cotton, rice, pulses, tea, and selected field crops per CIBRC approved label clearances.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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