Description
MECHANISM OF ACTION
The combination of three complementary active substances - nicosulfuron, rimsulfuron, and dicamba - makes PRINCIPAL® GOLD one of the broadest-spectrum herbicides for corn available on the Bulgarian market. Dicamba belongs to the chemical family of benzoic acids, which act as synthetic auxins - chemicals that participate in plant growth regulation, thus disrupting their natural hormonal balance. This causes disruption of growth processes in the plant. Dicamba is absorbed through leaves and roots, with rapid translocation throughout the entire plant via symplastic and apoplastic systems. Nicosulfuron and rimsulfuron are members of the sulfonylurea herbicide family. Both active substances control weeds through foliar action. However, minimal residual activity may be observed on sandy soils with low organic matter content under ideal moisture conditions. Nicosulfuron and rimsulfuron control weeds by blocking the biosynthesis of the plant enzyme acetolactate synthase (ALS), which is necessary for the production of branched-chain amino acids: leucine, isoleucine, and valine - essential building blocks of proteins and other plant components. PRINCIPAL GOLD is a systemic herbicide that enters the plant through roots and leaves and rapidly spreads throughout the entire plant.
ACTIVE SUBSTANCES
• Rimsulfuron - 31.25 g/kg • Nicosulfuron - 62.475 g/kg
• Dicamba - 510.42 g/kg • Isoxadifen-ethyl (safener) - 31.25 g/kg
CONTROLLED WEEDS
• Barnyard grass • Millet species • Velvetleaf • Green foxtail • Bristly foxtail • Italian ryegrass • Red-root pigweed • Yellow foxtail • Common lambsquarters • White goosefoot • Jimsonweed • Common cocklebur • Broadleaf pepperweed • Field pepperweed • Purslane • Chickweed • Many-seeded goosefoot • Common duckweed • Black nightshade • Redroot pigweed • Common mallow • Field bindweed • Field madder
REGISTERED APPLICATIONS
| Crop | Controlled Weeds | Dose | Application Timing |
|---|---|---|---|
| Corn | All economically important broadleaf weeds, including weeds with low sensitivity to hormone-like herbicides | 48 g/ha | Vegetative stage from 2nd leaf to 9th leaf (BBCH 12-19) |
Working solution volume: 5 - 40 L
Maximum application dose: 48 g product/ha per growing season
Advantages
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No need to mix with another herbicide to broaden the spectrum of action;
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Controls all economically important weeds, including hard-to-control ones, with a single treatment;
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Suitable for technology without soil herbicide application;
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Wide application window and flexibility from the 2nd to the 6th leaf stage of maize.
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