Gravis - growth regulator and systemic fungicide-retardant for rapeseed, Kyivska region.

Greyvis -growth regulator and systemic retardant fungicide forrape.

Active substance: Mepiquat chloride, 250 g/l + tebuconazole, 110 g/l
Preparative form: Emulsion, oil (butter) in water
Container: 5 l, the price is for 1 l.

Advantages:
Effective at low temperatures (average daily temperature +5⁰С). Increasing frost resistance of plants in the autumn and spring periods.
It has a strong preventive and health-improving effect.
Prevents overgrowth, lodging and promotes uniform flowering.

Mechanism of action;
Tebuconazole belongs to the chemical group of triazoles, and within 1-2 hours after application, it penetrates the plant through the assimilating parts and spreads evenly through the xylem. Tebuconazole blocks the biosynthesis of ergosterol, which is part of the cell wall of the fungus, which leads to disturbances in the process of cell division, and subsequently to the death of the pathogen. Mepiquat chloride belongs to quaternary ammonium compounds and is a growth regulator. When hit, the plant stops the synthesis of gibberellic acid, which is a regulator of plant growth and development. This leads to the shortening of the internode, the thickening of the root neck, and the increase in the length of the root.

Properties:
In the autumn period, when spraying winter rapeseed in the 4-6 leaf phase of the culture, the growth of ground mass stops, while the process of photosynthesis continues, which contributes to the accumulation of plastic substances in the root system and accelerates the growth of long and well-branched roots, which improves winter hardiness. Depending on the weather conditions, the rate of application of the drug and the phase of rapeseed development at the time of treatment, the thickness of the root neck can increase by 13%, and the length of the root by 80%.

General recommendations:(//tractor-service.com)
A mandatory requirement is to ensure continuous coverage of the area and abundant wetting of plants during application of the drug.
The optimal application in the fall is the four-leaf phase in rape (VVSN 13-14). Spring application from the phase of the beginning of stalking (VVSN 31-32) to the middle phase of budding (before VVSN 55).
It is not desirable to mix Gravis in tank mixtures with herbicides based on clopyralid, picloram, haloxifene-methyl, which is associated with the possibility of phytotoxicity for the crop.

Rate of consumption of working fluid: 200-300 l/ha.

Scope and cost norms (registered in Ukraine)
Culture Purpose Rate of consumption of the drug, l/ha Processing method Waiting period, days Max. number of treatments

Rapak
Prevention of crop overgrowth and improvement of overwintering, control of fomosis and alternariosis
0.6-1.2
Autumn spraying of crops in the phase of 4–6 leaves of the culture
50 2
Against lying down and to optimize the habit

Spring spraying of crops at a plant height of 20–30 cm.

Recommendations regarding the rates of consumption of the drug State of crop sowing Phase of plant development, (VVSN) Graevis, l/ha Early sowing dates, average daily temperature +15...+20⁰С 3-4 leaves (13-14) + 5-7 leaves (15-17) 0.6 + 0.6 (with an interval of 14-21 days) Optimal crop sowing dates, average daily temperature +15⁰С 3-4 leaves (13-14) 1,2 Late crop sowing dates, average daily temperatures +10...+15⁰С and below 4-6 leaves (14-16).