Active Ingredient Profile and Juvenile Hormone Mimicry
Lano features Pyriproxyfen (10% EC), a member of the pyridine-based juvenile hormone mimic chemical class (IRAC Group 7C).
It works by preventing juvenile insect hormone levels from dropping, blocking the hormonal signal required for metamorphosis.
Treated whitefly nymphs are unable to molt into subsequent instars or emerge as adults, while exposed adult females lay sterile, non-viable eggs.
- Formulation: 10 percent Emulsifiable Concentrate (EC)
- Ovicidal & nymphicidal action: Kills developing embryos in whitefly eggs and halts nymphal metamorphosis
- Trans-ovarian sterility: Adult female whiteflies exposed to spray deposits lay completely sterile eggs
- Translaminar movement: Penetrates leaf cuticles to control nymphs sheltering on lower leaf surfaces
Target Pests and Approved Crop Applications
Lano is registered across cotton, chili, tomato, and commercial vegetable crops.
It is especially recognized for breaking the reproductive cycle of whiteflies, suppressing honeydew sooty mold and blocking whitefly-vectored leaf curl viruses.
- Cotton: Controls whitefly (Bemisia tabaci) eggs and nymphs, preventing sooty mold lint staining
- Chilies and tomato: Manages whitefly vectors, reducing the transmission of leaf curl viruses
- Vegetables: Suppresses scale insect crawlers and early aphid colonies
Application Practices, Timing, and IPM Safety
Apply early when whitefly populations begin to colonize crops, targeting egg and nymphal clusters on the undersides of leaves.
Because Pyriproxyfen acts on juvenile hormones, adult whiteflies do not drop instantly; combining or alternating with a fast knockdown adulticide provides rapid relief.
Lano exhibits outstanding safety for honeybees, predatory ladybird beetles, and parasitic wasps.
- Early intervention: Spray at early nymphal hatching for maximum biological efficacy and minimal crop damage
- Underside coverage: Use hollow cone nozzles to ensure thorough misting of lower leaf surfaces
- Beneficial safety: Safe for honeybees and beneficial predators in Integrated Pest Management programs
Official source
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Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What is the active chemical in Sumitomo Lano?
Lano contains Pyriproxyfen 10% EC, a specialized juvenile hormone mimic insect growth regulator.
How does Lano control whiteflies in cotton?
It sterilizes whitefly eggs and prevents nymphs from metamorphosing into adults, completely collapsing the whitefly population.
Does Lano kill adult whiteflies immediately?
No, it targets eggs and nymphs and sterilizes female adults; adult whiteflies die naturally within a few days without reproducing.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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