Crop Protection

ORYZOSTAR (Technical: Byspiribac sodium 10% SC)

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20 March 2024, New Delhi: Oryzostar is a new post-emergence pyrimidinyl carboxy herbicide for the control of a wide range of weeds, in particular on Echinochloa crusgalli

Mode of Action:

Inhibits the enzyme acetolactate synthase and the subsequent biosynthesis of branched-chain essential amino acids.

CropsTarget Pest/Disease Dose per Acre (gm/ml)
PaddyEchinochloa crusgalli, Echinochloa colonum, Ischaemum rugosum, Cyprus difformis, Cyprus iria, Eclipta alba, Fimbristylis milliacea, Ludwiga parviflora, Monochoria vaginalis, Alternaria philoxeroides, Sphenoclea zeylancia80-100


1.    It controls major grasses, sedges and broad-leaf weeds of direct-seeded rice.

2.    Wider application window from 2-5 leaf stages of weeds.

3.    Safe for application in a rice field.

4.    Good rain-fastness

Also Read: India Initiates Anti-Dumping Investigation on Imports of Pretilachlor from China

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