Dual Active Chemistry and Spectrum of Control
Vivaya combines complementary modes of action engineered to manage tough weed complexes that escape single-molecule herbicides. Its active molecules penetrate weed foliage rapidly, translocating systemically to growing points to stop vegetative competition.
Soybean exhibits excellent physiological tolerance, breaking down the chemical rapidly without suffering vegetative stunting.
- Grassy weeds: Echinochloa colona, Digitaria sanguinalis, and Dactyloctenium aegyptium.
- Broadleaf weeds: Commelina benghalensis, Trianthema portulacastrum, Amaranthus viridis, and Digera arvensis.
- Dual control: Eliminates the need for tank-mixing separate graminicides and broadleaf weedkillers.
- Application window: Applied post-emergence at 15 to 25 days after sowing when target weeds have 2 to 4 leaves.
Field Application Guidelines and Stewardship
Optimal weed mortality requires applying Vivaya when target weeds are small, actively photosynthesizing, and adequately hydrated by soil moisture.
Uniform droplet deposition ensures complete foliage contact without spray drift onto adjacent sensitive crops.
- Apply using flat fan or floodjet nozzles fitted to a calibrated knapsack or tractor-mounted boom sprayer.
- Ensure adequate soil moisture is present; do not apply under drought conditions or during prolonged waterlogging.
- Respect the registered pre-harvest interval (PHI) and wear personal protective gear during all mixing and application procedures.
Official source
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Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
Which crop is Vivaya herbicide primarily designed for?
Vivaya is specifically designed for selective post-emergence weed management in soybean crops.
Does Vivaya control both grasses and broadleaf weeds?
Yes, its combination chemistry provides simultaneous control over major grassy weeds and broadleaf weeds in a single spray.
When is the best time to spray Vivaya in soybean fields?
Apply early post-emergence, approximately 15 to 25 days after sowing when weeds are at the 2 to 4 leaf stage.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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