Advantages
Quick visible desiccation effect.
Contributes to faster and uniform ripening of seeds, especially late hybrids.
Limits the spread of fungal diseases that lead to the deterioration of seed quality (white, gray, dry rot, alternariosis, mold).
Low costs for desiccation, high economic efficiency due to faster harvesting, reduction of fuel costs and drying costs.
Mechanism of action
The active substance diquat is quickly absorbed by the green parts of plants and turns into hydrogen peroxide, which destroys the walls of cell membranes. This leads to the drying of all green parts of the plant on which the drug got. Desiccation takes place only at the beginning of the photosynthesis process. But under the influence of ultraviolet rays, hydrogen peroxide quickly disintegrates, therefore, to ensure high efficiency, treatment with Alpha-Diquat is recommended to be carried out on a cloudy day or in the evening. In this case, there is a deeper penetration of diquat into the plant due to delaying the destruction of the cell until the beginning of the photosynthesis process and more uniform desiccation is ensured.
(//tractor-service.com)
Properties
It is quickly absorbed by plants and ensures fast and uniform ripening, which allows harvesting in early and short terms. In addition to cultivated plants, it dries weeds, which facilitates
harvesting. Stops the development and spread of diseases (white and gray rot
sunflower). Diquat quickly breaks down in plants, so it is possible to use the drug on seed plots and food crops.
General recommendations
The drug is used on sunflower crops in the browning phase of baskets. It is recommended to use only clean water. During application, the working speed of the unit should be 7-10 km/h. A mandatory requirement is to ensure continuous coverage of the area and complete wetting of the plants during application of the drug. Processing is recommended to be carried out in the evening or in the afternoon under cloudy weather conditions. In sunny and hot weather, desiccation is quick, but less efficient. It is not recommended to process in the morning. It is forbidden to spray at a wind speed of more than 3-4 m/s. Tank mixtures with other commonly used pesticides on the respective crops are not recommended due to the mismatch of the terms of application. To increase the efficiency of desiccation, Alfalip Extra surfactant (0.2-0.3 l/ha) or urea, ammonium nitrate should be added to the Alfa-Diquat solution.
Rate of consumption of working fluid
Aerial spraying - 250-400 l/ha, aerial spraying - 50-70 l/ha, ultra-small-volume spraying - 5-10 l/ha.