Content
Among fungicides of systemic action, "Rex Duo" received a good rating from farmers.
This preparation consists of two components and is used to protect forage and cereal plants from fungal infections. The innovative solution belongs to the developers of BASF, who have successfully selected active ingredients with a mutually complementary effect.
More about development:
Description and properties of the drug
The necessary information about the fungicide "Rex Duo" is collected in the instructions for use.
The active components of the drug are:
- Epoxiconazole at a concentration of 18.7%. Belongs to the chemical class of triazoles. According to the method of penetration, it belongs to systemic pesticides, according to the action to fungicides, according to the nature of the action - to protective pesticides and curative fungicides. Blocks the formation of cell membranes of the pathogen, which leads to its death. A distinctive property is the ability of a substance to remain active during wet and cold weather. Fast onset and duration of action is another advantage of the component.
- Thiophanate methyl at a concentration of 31.0%. The chemical class is benzimidazoles. For this component, the method of penetration refers it to systemic contact pesticides, the effect on organisms is much broader than that of epoxiconazole. In addition to the group of pesticides and fungicides, the substance belongs to insecticides and ovicides. By its nature, it is a protective pesticide. Suspends the process of fungal cell division.
It can be seen that the mechanism of action of the components is different, therefore the effect of the fungicide "Rex" is manifested in a wide range, and the risk of resistance is significantly reduced.
The drug "Rex Duo" is produced in the form of KS - a concentrated suspension mixture.
According to farmers, the drug has the greatest value when growing varieties of winter wheat. Even a minimal level of rust, septoria and powdery mildew damage can lead to the loss of a quarter of the crop. Therefore, the protective effect of "Rex Duo" is able to protect crops from damage by pathogens.
Its use is justified for the protection and prevention of crops from a number of fungal infections:
- spots;
- pyrenophorosis;
- powdery mildew;
- rust;
- septoria;
- rhynchosporia;
- cercosporosis.
In case of signs of disease, the use of the fungicide "Rex Duo" gives a lasting positive effect.
Advantages and disadvantages of a systemic drug
Among the main advantages of the fungicide are:
- pronounced stop effect for pathogens due to the rapid penetration of active ingredients into plant tissues;
- a high level of consistency contributes to the protection of new plant parts;
- the possibility of using in tank mixes, but after a compatibility test;
- reliability during processing in conditions of low temperatures and high air humidity (the rate of penetration of active substances is not more than 30 minutes);
- guaranteed protection of cereals (ears) and beets (leaves);
- the duration of the protective effect is about a month;
- rapid manifestation of the therapeutic effect of the fungicide (on the first day);
- stable effect when combined with vitamin and mineral complexes;
- the ability to use a fungicide near water bodies;
- an increase in the growing season of plants;
- convenient form of release - cans of 1 liter and 10 liters.
Among the disadvantages of the fungicide, agrarians note:
- Not too budgetary price. A canister with a volume of 1 liter costs from 2000 rubles.
- Toxicity to warm-blooded animals and humans. It is not maximum (class 3), but the use of the drug requires the mandatory use of personal protective equipment for the skin and mucous membranes. After processing, it is possible to continue work on the site in 3 days.
The agrarians do not note other significant shortcomings.
Preparation of working solution
The mixture is prepared just before use. The consumption rate of the suspension is calculated depending on the cultivated area and the type of culture. The species belonging of the pathogenic fungus does not play any role, therefore it is not taken into account.
The fungicide emulsion is added to half the volume of water and mixed thoroughly. Then add the rest of the water in portions. This makes it possible to uniformly dissolve the substance.
To carry out the treatment of cereals, a ratio of 300 ml of fungicide per 1 ha of area is adhered to. On rape plantings, the consumption is doubled (600 ml). The volume of water is calculated according to the norms of the instructions for working with the sprayer and the density of the jet outlet.
For cereals, one preventive fungicide treatment per season is sufficient. If there is a need for treatment, then spraying is permissible at any stage of plant development. In this case, the degree of damage is taken into account. The frequency of spraying is 2 weeks.
Beets for table and fodder are processed twice with an interval of 14 days. In this case, the "Rex Duo" consumption is kept in a volume of 300 ml. Water is taken, calculated in accordance with the power of the sprayer.
All these recommendations are highlighted in the instructions attached to the fungicide "Rex Duo"
Application of the preparation for crops
For cereals, 2 treatments with the Rex Duo fungicide are recommended. For beets, one or two. The drug works great for the defeat of several types of fungal infections, therefore it is used everywhere.
On the planting areas of spring and winter wheat or barley, they are used per 1 sq. m from 0.04 ml to 0.06 ml of suspension. One spraying is enough with a working solution consumption of 30 ml per 1 sq. m.
On beet beds, the consumption is almost the same - from 0.05 ml to 0.06 ml. Two sprays are carried out with an interval of 14 days. A second treatment will be needed when signs of damage appear. In some cases, one prophylactic is sufficient. For 1 sq. m of area is consumed from 20 ml to 40 ml of solution.
Safety regulations
The fungicide is not toxic to bees and fish, but special care must be taken by humans. It is required to protect the respiratory organs, skin and eyes from the effects of the chemical as much as possible. In case of direct contact, adsorbent preparations are immediately taken and the skin is washed.
Do not use the substance after the expiration date (3 years), neglect of this rule leads to increased toxicity.
Dispose of packaging separately from household waste.
The containers in which the solution was prepared are thoroughly washed and stored out of the reach of children and animals.
Varieties of the drug
The developers have provided farmers with a new drug with enhanced action - the fungicide Rex Plus ”. The active ingredients are Epoxiconazole (84%) and Fenpropimorph (25%). The first ingredient is identical to one of the active ingredients "Rex Duo", and the second enhances the absorption of epoxiconazole. It has a very high mobility and rapid penetration into plant tissues. When used together, this leads to increased penetration and the first component.The developers called the synergy of the two active ingredients in Rex Plus the slippage effect. The composition also includes special adhesives, adjuvants that increase the fixation of the fungicide on the surface of plant parts. Accordingly, the absorption of the drug is improved. The fungicide is adapted for use on grain crops.
According to farmers, the fungicide "Rex Plus" has the following advantages:
- Low level of substance loss. Due to the inclusion of adhesives, the solution does not roll off the leaves.
- Increased protective effect due to uniform distribution.
- More pronounced stop effect or curative effect.
- High bioeffectiveness of the fungicide in zones of different climates.
Testimonials
You can learn more about the benefits of Rex fungicides from the reviews.
