Systemic herbicide Pledge destroys weeds on sunflower and soybean crops. The drug copes with all dicotyledonous and cereal weeds in just one spraying. The herbicidal agent exhibits selective activity, that is, it acts only on weeds. However, processing the main crop during the cotyledon phase is strictly prohibited.
Active ingredients and dosage form
Pledge is a systemic and selective herbicide that protects sunflower and soybean crops from broad-leaved weeds. Used before and after germination of the main crop.
The active substance is flumioxazin from the N-phenyl-phthalimide class. It comes in the form of a yellowish-brown powder that must be dissolved in water before use. Used in tank mixtures of fine sprayers. Sold in a cardboard package containing 5 bags weighing 200 grams. Only one treatment is needed per season.
Spectrum and mechanism of action
The herbicide Pledge acts on annual dicotyledonous and some cereal weeds. The drug suppresses the following plants: poppy, knotweed, acorn grass, shepherd's purse, purslane, bindweed, chickweed and others. Through leaves and roots, the active substance penetrates into weeds and acts at the cellular level. Weeds stop growing, wither, dry out, turn black, and turn pale.
The period of protective action is 60 days.
Pros and cons of the drug Pledge
Advantages of the herbicide:
- can be used before and after germination of the main crop;
- compatible with various plant protection products;
- “burns” weeds;
- characterized by prolonged action.
Minuses:
- not recommended for use in heavy rainfall;
- ineffective against thistle, wheatgrass, and milkweed.
Weed control measures
The herbicidal agent Pledge is prepared in the following proportions (at a working fluid consumption of 200-300 l/ha):
- For sunflower: 0.08-0.1 kg/ha.
- For soybeans: 0.1-0.12 kg/ha.
How to prepare and use the working mixture
According to the instructions, Pledge herbicide, which protects against weeds, can be used before and after sunflower or soybean germination.When using a herbicide pre-emergence, the soil must be well prepared and have a sufficient supply of moisture. The drug can remain on the soil surface for a long time, and loosening will disrupt the protective effects of the herbicide.
The herbicide is used immediately after sowing the main crops, while they have not yet sprouted. Irrigation can be carried out 2-3 days after sowing.
The drug can be used after 2-4 true leaves of the main crop appear. True, during the cotyledon period this remedy is prohibited from being used. It is better to spray weeds at the very beginning of their development. Pledge burns down weeds and gives the main crops a good start. It is not recommended to use the herbicide if sunflower or soybeans have been severely damaged by frost, drought, poor nutrition, disease, or insects.
Spraying with a herbicide using tractor sprayers is carried out in the morning (before 10 am) and evening (from 18 to 22) hours. Before preparing the solution, wash the tank thoroughly. The herbicide mixture itself is prepared on the day of spraying. The tank is half filled with clean, free water. With the mixer running, add the herbicide powder. Then add the rest of the liquid. After spraying, all equipment must be thoroughly washed.
Safety precautions for use
Pregnant women, teenagers under 18 years of age, and people with medical reports are not allowed to work on irrigating fields with herbicides. When working with the herbicide, you need to wear a protective suit, mask or respirator, boots, and gloves. After field work, you need to wash your hands and face with warm water and soap, and rinse your mouth with a soda solution. Do not inhale vapors or drink the herbicide mixture.
Degree of toxicity
The drug is phytotoxic to a number of crops. At the site where the field was treated to remove weeds, planting corn and wheat is allowed no earlier than 30 days later. Barley and beans can be sown after 4 months. Oats, rapeseed, vegetables, beets are allowed to be sown only after 1 year.
The drug belongs to the 2nd class of danger for humans and the 3rd class for beneficial insects. The use of herbicide is undesirable during the active summer of bees. It is prohibited to carry out aerial spraying in the protected zone, near fish breeding reservoirs.
Is it compatible with other substances?
The drug Pledge can be used with the surfactant Scaba. It is not advisable to use this herbicide with other adjuvants. The combined use of Pledge and other pesticides (Pendimethalin, Trifluralin), mineral fertilizers and growth stimulants in tank mixtures is not allowed. Other graminicides can be used no earlier than after 3 days. In case of severe clogging, Pledge can be used in tank mixtures with acetochlor, flurochloridone, propisochlor, dimethenamid-R.
Storage rules and periods
The pesticide is stored in accordance with accepted regulations, that is, in a separate room for storing plant protection chemicals. The warehouse must meet sanitary and fire safety standards and be protected from moisture and sunlight. You cannot keep prepared foods, vegetables, and fruits indoors. It is recommended to store the herbicide at room temperature in sealed containers.
The drug is used before the expiration date. The finished mixture of powder and water is completely used on the day of preparation.
Residues are poured outside agricultural lands.
Existing analogues
The herbicide Pledge has an analogue. This is the drug Fluzion.The herbicide is used to kill monocotyledonous and dicotyledonous weeds in soybean and sunflower fields. The herbicidal agent penetrates the weeds and has an inhibitory effect on the enzymes responsible for cell division. Weeds wither and die completely.
True, this herbicide is used before the emergence of the main crop. The field is sprayed on the 3rd day after sowing soybeans or sunflowers.
