Active technical content and rapid contact action
All Clear contains Paraquat Dichloride, belonging to the bipyridylium chemical family (HRAC Group 22).
Key biochemical properties:
- Active composition: Paraquat Dichloride 24% Soluble Liquid (SL).
- Photosystem I inhibition: Intercepts electrons during light-driven photosynthesis, generating toxic reactive oxygen radicals that rupture plant cell membranes.
- Rapid foliar burndown: Visible foliar yellowing and desiccation occur within a few hours of application under bright sunlight.
- Contact-only action: Does not translocate systemically into subterranean rootstocks or bulbs; woody stems and non-green bark remain undamaged.
- Soil deactivation: Strongly binds to clay and organic soil particles immediately upon contact, leaving no active herbicidal residue for subsequently emerging seedlings.
Target weeds and approved operational areas
All Clear provides rapid burn-down of mixed annual grasses and broadleaf weeds:
Approved application environments:
- Tea plantations: Directed post-emergence inter-row weed management without contacting green tea leaves.
- Zero-tillage farming: Clearing dense pre-sowing weed growth in wheat and rice fields prior to direct seeding.
- Non-crop agricultural zones: Managing overgrown vegetation along farm bunds, drainage channels, irrigation channels, and fence lines.
- Aquatic weed suppression: Controlled application against floating aquatic weeds like water hyacinth (Eichhornia crassipes) in irrigation channels.
Strict handling protocols and safety gear
Paraquat is a toxic formulation requiring strict protective handling. Operators must wear complete personal protective equipment (PPE) including protective coveralls, chemical-resistant nitrile gloves, vapor respirator masks, and protective eye goggles. Never use faulty leaking sprayers, use drift hoods near standing crops, and store securely away from children, food, and animals.
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 ingredient in All Clear herbicide?
All Clear contains Paraquat Dichloride 24% SL, a non-selective contact bipyridylium herbicide.
Does All Clear herbicide affect subsequent crop seed germination?
No, Paraquat is rapidly inactivated and locked by clay particles upon contact with soil, making it safe for direct-seeded crops.
What safety precautions are necessary when spraying All Clear?
Applicators must wear full PPE including vapor masks, goggles, and chemical-resistant gloves, and avoid any inhalation or skin contact.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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