Cordus Flex - post-emergence herbicide for controlling weeds in corn crops, Kiev region.

Cordus® Flex - post-emergence herbicide for the control of annual and perennial grass and dicot weed species in corn crops with high selectivity to the crop due to the added antidote.

Active ingredients: dicamba, 561.5 g/kg + rimsulfuron, 31.3 g/kg + nicosulfuron, 62.5 g/kg + isoxadifen-ethyl, 31.3 g/kg (antidote)
Preparative form: water-soluble granules
Chemical group: sulfonylureas and benzoic acid derivatives
Shelf life: 3 years
Packaging: 9.6 kg box, 4 2.4 kg plastic canisters, the price is per canister.

Features and benefits:
Excellent control of a wide range of cereal weed species, such as creeping wheatgrass, common flat grass, multiflowered fenugreek, gumi, etc.
Control of a wide range of harmful dicotyledonous weed species (white quinoa, field mustard, wild radish, species of thistles and bitter gorse, species of sedge, etc.).
Control ofsunflower blight.
Safe for subsequent crop rotations.
A wide window of application (VVSN 12–17).
It has high selectivity to the culture due to the added antidote (isoxadifen).

Mechanism and speed of action:
Rimsulfuron and nicosulfuron, as representatives of the class of sulfonylureas, show their herbicidal activity against cereal and some dicotyledonous weed species by inhibiting the enzyme acetolactate synthase (ALS).

Dicamba acts as an auxin-like herbicide, showing activity against dicotyledonous weeds. The systemic active substance, which is absorbed by the leaves and root system, moves well in the plant through both xylem and phloem, reaching the meristematic tissues at the growth points, where it manifests its herbicidal activity.

The selectivity of Kordus® Flex is based on the ability of corn plants to quickly metabolize and inactivate the active substance with the help of an antidote (isoxadifen) present in the preparation.

Regulations of application:

Crop: corn
Application rate: 480 g/ha
Application phase: from 2 to 7 leaves in crops (BBCH 12-17)
Number of treatments: 1 per season

Spectrum of action: annual and perennial grass and dicot weed species

Recommended with an adjuvant: Aykaz® at a concentration of 0.25% or Vivolt® surfactant at a concentration of 0.2%

The optimal pH range of the working solution: 5.0-6.5

Additional recommendations:
It must be used with the adjuvant Aikaz® or Vivalt® surfactant.
Do not use in popcorn, sweet corn, pop corn, or parent lines.
The optimal temperature for use is from +15 to +25°C.
Do not apply if precipitation is expected within 2 hours of application.
Do not apply if the crop is wet from rain or dew.

Compatibility:
It is recommended to mix with insecticides from the group of pyrethroids, but the product is not compatible with organophosphorus insecticides. The minimum interval between applications of organophosphorusinsecticides and Kordus® Flex is 10–14 days. It is not recommended to mix Cordus® Flex with zinc-based microfertilizers.

Dublon™ - Post-emergence systemic herbicide for controlling grass and annual dicotyledonous weeds in corn crops.

Active ingredient: nicosulfuron 40 g/l
Preparative form: KC (suspension concentrate)
Chemical group: nicosulfuron belongs to the chemical class of sulfonylurea derivatives.
Package: 5 l canister
Producer: Avgust(//tractor-service.com)

Recommendations for use:

* Corn
Harmful object: Annual and perennial grasses and some dicotyledonous weeds
Method, processing time, limitations:
Consumption rates: 1.0 - 1.25 l / ha
Norms for the use of working solution min/max: 1.0 - 1.25 l / ha

Compatibility:
to expand the spectrum of action and reduce consumption rates, it is allowed to use Dublon™ in tank mixtures with other pesticides. Before use, it is necessary to check the mixture for compatibility and phytotoxicity with respect to corn.

It is not recommended to use the herbicide in a mixture with organophosphorus insecticides, as well as to alternate treatments with organophosphorus insecticides and herbicide, if the gap between them does not exceed 7 - 14 days, due to possible suppression of the culture.

High efficiency is demonstrated by the tank mixture of Dublon™ with Ballerina® (1 - 1.2 l/ha + 0.25 - 0.3 l/ha) - the set Dublon™ Trio*.

Range of action:
Dublon™ is effective against annual and perennial grasses and some annual dicotyledonous weeds.

Mechanism of action:
the active substance of the drug is an inhibitor of the formation of the enzyme acetolactate synthase, which is involved in the synthesis of essential amino acids. The herbicide has a systemic effect, quickly penetrates weed plants and stops their growth.

Speed and symptoms of exposure:
depending on the weather conditions, the herbicide stops the growth of weeds already 4-6 hours after treatment. During the week, the weeds change color (turn brown). Complete dying of plants occurs 7 - 20 days after spraying.

Period of protective effect:
depending on the species composition of weeds, soil, climatic and weather conditions of the year, the period of protective action of Dublon™ is up to 3 weeks.

Advantages:
• high efficiency even against creeping wheatgrass and gum;
• wide application range — 3 - 10 leaves of culture;
• selective towards culture;
• high-tech preparation form.

Features of application:
the best results are achieved when spraying is carried out during the period when weeds are actively growing. The minimum rate of herbicide consumption is used against annual grass weeds (the optimal phase is 1-3 leaves), the maximum rate is used on areas heavily weeded with gum (growths from the rhizomes) and other perennial weeds (grass 15-25 cm tall). Against annual dicotyledonous weeds, the drug is most effective in the phase of 2-4 leaves. The phase of crop development during processing is 3 - 10 leaves, but at the same time it is necessary to ensure that the corn plants do not "screen" the weeds.

Factors affecting the effectiveness of the kit:
the optimal air temperature during spraying is in the range of 15 - 25°C, with optimal soil and air humidity. It is not recommended to use the drug in cold or hot weather, with excessive rainfall, as well as in a situation where weeds are in a state of stress.

Restrictions on crop rotation:
nicosulfuron is rapidly decomposed by soil microflora in moist and warm conditions with a soil solution reaction (pH less than 7). However, there are limitations when using the drug. If it is necessary to reseed the areas treated with Dublon™ herbicide, in the spring the area can be reseeded only with corn or after plowing with soybeans, in the autumn with winter barley or wheat. Any crop can be sown the following year after using the drug. There is a possibility of damage to subsequent crops of the rotation on soils with an alkaline reaction (pH greater than 8), if dry conditions prevailed between the application of Dublon™ and the sowing of the next crop. The minimum time (months) before sowing the following crop rotations: corn (for grain) - at any time; soy - after 9 months; grain ears - after 5 months; beans - after 9 months; alfalfa - after 9 months. The specified interval can be reduced to 3 months if the pH of the soil is below 7 (acidic soils).

Preparation of the working solution:
the working solution is prepared immediately before spraying. The drug is mixed well in the factory packaging, then the necessary amount of it is measured for one filling of the sprayer. It is recommended to inject the drug directly into the tank of the sprayer, provided that the hydraulic stirrer is working well. At the same time, the tanksprayer must be at least half filled with water. The container in which the herbicide was located is washed with water several times.

Additional information:

The possibility of resistance:
to prevent the emergence of resistance, it is advisable to alternate the drug with herbicides of other chemical classes.

Selectivity:
for recommendations on the use of the drug on sensitive hybrids and some lines, contact the seed originator companies.