Принципал™ Plus - Comprehensive herbicidal solution for complete control of grass and broadleaf weeds after their emergence

Farmers call it “The Mower”

In the 4–6 leaf stage, maize establishes its generative organs and forms the potential of the future yield. Maintaining a weed-free field is of particular importance so that the crop can benefit from the nutrients and water in the soil and fully develop its potential for high and quality yield.

For this reason, timely treatment with post-emergence herbicides is recommended. Corteva Аgriscience™ offers the already proven product on the market Principal® Plus.

Principal® Plus controls all economically important grass and broadleaf weeds in maize and is distinguished by numerous advantages thanks to the excellent interaction of the three active substances in its composition. By choosing Principal® Plus, the farmer receives a solution for the control of a broad spectrum of weeds, excellent selectivity to the crop, strong systemic action, rapid initial effect, no need for an additional herbicide partner, convenient and easy to use, and without restrictions for the subsequent crops in the crop rotation. In addition, it is an excellent alternative to soil-applied herbicides, or in case of lack of effect from them due to soil drought immediately after their application.

Principal® Plus is applied from the 2nd to the 6th leaf stage of the crop at a dose of 44 g/da with 0.1% adjuvant Trend® 90 / Vivolt™ 90. Vivolt™ 90 will be a trademark of Corteva Agriscience™ from 2021. The adjuvant Vivolt™ 90 improves contact with the leaf surface, reduces surface tension, which is particularly important under unfavourable weather conditions (drought, cool weather), as well as for weeds whose leaves are difficult to wet due to waxy coating or hairs. Actively growing weeds are susceptible to the product, especially in early stages of their development, but in a number of long-term trials and applications with a large number of farmers in the past year, we have been convinced that Principal® Plus also effectively controls weeds in a more advanced stage of development.

After treatment, Principal® Plus quickly penetrates through the leaves and roots of the problem weeds and moves to all parts of the plant. Visual effect is observed as early as the second to third day. It is expressed in yellowing of the growth zones in broadleaf weeds and anthocyanin colouring in grass weeds. Weeds die completely two to three weeks after treatment, during which time they are not competitors to the crop in terms of moisture, light and nutrients.

Principal® Plus is the herbicide that protects fields from weeds that others struggle to control, and does so with only one treatment, thereby saving time and resources.

These positive characteristics of Principal™ Plus have been proven over the years and you, the farmers, have called it “The Mower” – due to its flawless performance even in cases of severe infestation with a wide spectrum of weeds

Practical advantages:

• No need to mix with another herbicide to broaden the spectrum of activity

• Control of all economically important weeds, including difficult-to-control species, with a single treatment

• Wide application window and flexibility of use from the 2nd to the 6th leaf stage of maize

• Excellent control of rhizomatous johnsongrass and thistle

• Selective triple systemic post-emergence herbicide with different mechanisms of action, synergy and mutually complementary action of the active substances

• Dual action against grass weeds and triple action against broadleaf weeds

• Suitable for maize cultivation technology without the use of soil-applied herbicide

• No restrictions for the next crop in the crop rotation when the label recommendations are followed