Herbicide Webb

Postemergence herbicide of systemic action for control of annual and certain perennial dicotyledonous weeds in cereal crops

Active substance: tribenuron-methyl 750 g/kg

Formulation: water soluble granules

The advantages of using herbicide Webb

- Herbicide used for the oppression and destruction of a wide range of dicotyledonous weeds, including resistant to drugs on the basis of 2,4 D;

Is not phytotoxic to cultural gramineous plants. Even when using the drug until phase flag leaf, fetotoksicnosti not shown;

- A long period of application - from emergence to 2 leaf to flag leaf culture;

The herbicide characteristic of high speed action (5-8 days) and the long period of protective action (30 days);

- Does not restrict the alternation of crops in crop rotation;

- Significantly reduces the herbicidal effect on the soil.

The mechanism of action of the herbicide Webb

The drug, which includes tribenuron methyl, sulfate amonium. and other auxiliary substances, penetrates into the plant through leaves and roots. The Webb action is manifested by inhibiting the activity of the enzyme that leads to blocking of the synthesis of essential amino acids valine and isoleucine with subsequent suspension and violation of differentiation of cells in the growing points of the plant. Visual herbicide effect is manifested in the form of suspension of plant growth and its subsequent death in 1-2 weeks.

Range of action of the drug Webb

The herbicide used to destroy a broad spectrum of dicotyledonous weeds.

Herbicide safe for bees, birds, fish.

The application of herbicide Webb

Winter wheat:

The consumption rate of the product: 15-25 g/ha

Harmful objects: annual and some perennial dicotyledonous weeds of Solanki

Method and time of treatment: sprayed crops in the period from the phase of 2-3 leaves before the flag leaf culture.

Maximum number of treatments: 1

Spring barley:

The drug consumption rate: 15-20 g/ha

Harmful objects: annual and some perennial dicotyledonous weeds of Solanki

Method and time of treatment: sprayed crops in the period from the phase of 2-3 leaves before the plants in the tube.

Maximum number of treatments: 1

Features of technology of making

The maximum effect is achieved when the herbicide treatment of crops during active growth young weeds (2-4 leaves - annual, rosette - for many years).

The rate of application of herbicide for winter wheat is set depending on the phase of development of weeds. The maximum consumption rate is established at presence of overgrown (more than 4-h leaves a one-year, steblevka for many years) and the dominance of the medium sensitive crops and resistant weeds.

The visual signs of drug action depend on the species composition of weeds, their stages of development and climatic conditions during the period of treatment. The first signs of chlorosis, necrosis within a few days after treatment, after 1-2 weeks the weeds die. Some medium sensitive weeds remain green for a long time, but their development is significantly suppressed.

When processing moderately sensitive weeds in the later stages of the development and during dry weather, signs of the action of the herbicide appear later.

Warm and humid weather enhances the activity of the drug, long-term dry period reduces its activity.

The rain that falls for three hours after application of the herbicide may wash him from the surface of the leaves before the full penetration which also reduces the activity of its action.

On wheat and barley conducted to the spraying of the cleavers - phase to fourth whorls, but against sow Thistle field with a height of 10-15 cm.

To enhance the action of the drug may use it in tank mixtures with other herbicides that are used on cereals and cereal crops, as well as liquid fertilizers.

The consumption rate of working liquid of 200-300 l/ha

The timing of exit after spraying for mechanical works - 3days