How does Herbicide Diquat dibromide monohydrate Work?
What is Herbicide Diquat dibromide monohydrate?Diquat dibromide monohydrate is a non-selective contact herbicide with certain conductivity, which can be absorbed by the green tissues of weeds. Weeds begin to die within hours of being treated.Cas 6385-62-2 The medicinal liquid has no adverse effect on mature and brown bark, and the medicinal liquid is passivated after contacting the soil. Under normal technical conditions, it does not affect the germination and emergence of seeds in the soil, and basically has no destructive effect on the underground rhizomes of plants. Prevention of various weeds in non-arable land.
Diquat dibromide monohydrate (chemical name: 6,7-Dihydrodipyrido[1,2-a:2',1'-c]pyrazinediium dibromide) is a non-volatile herbicidal active ingredient used as a general herbicide to control weeds in commercial greenhouses and nurseries, ornamental seed crops, landscape, industrial, recreational, commercial, residential, and public areas; turf renovation (all turf areas except commercial sod farms); dormant established turfgrass and aquatic areas.
Diquat dibromide monohydrate original form is a colorless to yellow crystal that is red when mixed as a solution. It is odorless. It is highly soluble in water and has a high affinity for soil. Formulations meant for aquatic weed management are usually liquid.
Diquat dibromide monohydrate is a yellow crystalline solid dissolved in a liquid carrier. It is a water emulsifiable liquid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Since it is a liquid it can easily penetrate the soil and contaminate groundwater and nearby streams. It can cause illness by inhalation, skin absorption and/or ingestion. It is used as a herbicide.
How Does Herbicide Diquat dibromide monohydrate Work?
Mode of Action
Diquat dibromide monohydrate mode of action involves disrupting cell membranes and interfering with photosynthesis. It is a non-selective herbicide and will kill a wide variety of plants on contact. Diquat is referred to as a desiccant because it causes a leaf or an entire plant to dry out quickly.
It is used to desiccate potato vines and seed crops for agricultural farmers, to control the flowering of sugarcane plants, and for industrial and aquatic weed control.
Herbicide Diquat dibromide monohydrate Uses
Diquat dibromide monohydrate is used widely for control of annual broad-leaved weeds in many crops, vines, orchards, potatoes, sugarcane and ornamentals, for weed control in non-crop situations, such as pastures and rights-of-way, and for control of both emergent and submerged aquatic weeds. It is also used for pre-harvest desiccation of foliage in many food crops and cotton.
It is often used in combination with other herbicides. Diquat dibromide monohydrate is readily hydrolysed in alkaline conditions but not in acidic or neutral water.
Diquat dibromide monohydrate is a non-selective contact algicide, defoliant, desiccant and herbicide. As a herbicide/algicide it is used to control broadleaf and grassy weeds in non-crop (including residential) and aquatic areas. As a desiccant/defoliant, it is used on seed crops and potatoes.
Its largest terrestrial use is as a desiccant on potato crops, while other food applications include use as a desiccant on crops grown for seed that are used for feed.
Diquat dibromide monohydrate may be applied pre-harvest and post-harvest at a maximum application rate of 4.0 lbs diquat cation/A (up to 12 lbs diquat cation/surface acre for certain Special Local Need (SLN) labels when application is to water 12 ft).
On average, less than 500,000 lbs of active ingredient (a.i.) are applied annually.
Technical for use Herbicide Diquat dibromide monohydrate
Dilute the liquid medicine with water, according to the size and quantity of weeds, the spray volume per mu is 40-50 kg. Use a hand sprayer. Spray the weed leaves evenly. When applying pesticides, the liquid medicine should be avoided from drifting to adjacent sensitive crops to prevent phytotoxicity. Do not apply on windy days or when rainfall is expected within 1 hour.
Following Diquat treatment, the product works immediately upon contact to the target weeds. Plants will die within a week. When applying on water bodies, it is best to treat in sections rather than all at once. Wait 10 to 14 days before making sectional treatments.
1. Using 120-200mL of 20% Diquat dibromide monohydrate monohydratewater agent per mu has a good control effect on early-growing broad-leaved weeds in corn-protected cultivated land, and is relatively safe for corn. Pay attention to the concentration and operation method.
2. Using 200g/L Diquat dibromide monohydrate monohydratewater agent with an active ingredient dosage of 800-1000 per hectare has excellent effect on weeds on non-cultivated land.
3. The dosage of 200g/L Diquat dibromide monohydrate monohydratedibromide soluble agent is 1200~1500g per hectare, which has a fast and efficient effect on potato withering. After treatment with diquat, the potato yield increased significantly. Diquat dibromide monohydrate monohydratehas zero residue in potatoes after withering, so Diquat dibromide monohydrate monohydratehas high safety. It is recommended to use it 7-10 days before the potato is harvested, and use it under the instructions or the guidance of a technician.
Herbicide Diquat dibromide monohydrate price
Normally the price of the pesticide Herbicide Diquat dibromide monohydrate is affected by raw materials, market environment, R&D costs, etc. If you want to know the latest priceof the pesticide Herbicide Diquat dibromide monohydrate you need, please contact us to initiate an inquiry.
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Herbicide Diquat dibromide monohydrate supplier
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How is Diquat dibromide monohydrate applied?
Non-selective contact herbicide, slightly conductive. After being absorbed by green plants, it inhibits the electron transfer of photosynthesis. Under the induction of light, the bipyridine compound in the reduced state is quickly oxidized in the presence of oxygen to form active hydrogen peroxide. The accumulation of this substance destroys the plant cell membrane, and the affected The part of the medicine is withered and yellow. It is suitable for weeding in plots dominated by broad-leaved weeds; it can also be used as a desiccant for seed plants; it can also be used as a withering agent for crops such as potatoes, cotton, soybeans, corn, sorghum, flax, and sunflower; when dealing with mature crops, the residual The green parts and weeds of the plant dry up quickly, which can be harvested earlier and with less seed loss; it can also be used as an inhibitor of sugarcane inflorescence formation. Since it cannot penetrate the mature bark, it has basically no destructive effect on the underground pole stem. For crop withering, the dosage is 3-6g active ingredient/100m2. For weeding in farmland, the amount of no-tillage weeding in summer corn is 4.5-6g active ingredient/100m2, and in orchard is 6-9 active ingredient/100m2. Do not spray directly on the saplings of the crops, because contact with the green parts of the crops will cause phytotoxicity.
Diquat dibromide monohydrate monohydrate weeding characteristics
Diquat dibromide monohydrate monohydrate can be used in orchards, fields, non-cultivated land, and crushed rice sedge in the ground before planting. It has excellent effects on a variety of broad-leaved weeds and a long-lasting effect. It has better quick-acting effects on gramineous weeds. Efficacy is poor and easy to turn green.
Diquat dibromide monohydrate can also be used as a new type of withering desiccant, which has been used in crop fields such as potato, rice, rapeseed and flax. Diquat dibromide monohydrate monohydratetreatment can significantly reduce the water content of crop grains, and has no effect on seed vigor.
Diquat dibromide monohydrate Like paraquat, it belongs to the bipyridine herbicide class. It is a contact-killing herbicide that can be quickly absorbed by green plant tissues, but it will lose its activity immediately after contacting soil. However, paraquat is extremely toxic to humans, and there is no specific antidote.
Diquat dibromide monohydrate is a moderately toxic herbicide. Diquat dibromide monohydrate monohydrateis low toxic to bees, earthworms and fish, moderately toxic to silkworms, birds and daphnia, and highly toxic to algae.
Benefits of Diquat dibromide monohydrate
Diquat dibromide monohydrate acts quickly and kills on contact, causing injury only to the parts of the plant to which it is applied.
Diquat dibromide monohydrate is best used to control aquatic weeds that are interfering with recreation and aesthetics in ponds, lakes and other managed water bodies. It is non-selective so you should also use it when you don't mind all plants dyings.
Drawbacks of Diquat dibromide monohydrate
Diquat dibromide monohydrate is not systemic, meaning it does not move throughout the target plant; it will only kill parts of the plants that it contacts. It is not residual, so it does not leave any trace of herbicide on or in plants, soil, or water which helps to continue killing any other emerging plants.
Do not use Diquat dibromide monohydrate in large amounts on a water body, especially if you have fish and lots of aquatic life in the water.
What weeds are controlled by Diquat dibromide monohydrate?
A liquid herbicide that is quickly absorbed by plants. Great pondweed control herbicide that easily controls duckweed and submerged weeds. Effective lake herbicide that kills submerged weeds like watermilfoil, Hydrilla, and curly leaf pondweed.
How does Diquat dibromide monohydrate help control submerged freshwater weeds?
When Diquat dibromide monohydrate is applied to a water body it comes into contact with the leaves and stems of invasive weeds and is rapidly absorbed. Diquat dibromide monohydrate dehydrates the plant tissue causing damage to the cells when plants use light for growth (photosynthesis). Only the parts of the plant that are directly in contact with diquat for long enough to allow uptake are affected. Plant parts buried in sediment at the bottom of lakes and rivers are not affected, therefore Diquat dibromide monohydrate does not usually kill the whole weed, but reduces the height and size of weed beds.
Does Diquat dibromide monohydrate affect people using lakes and rivers?
Diquat dibromide monohydrate has no risk for human health at the concentrations used for submerged weed control under prescribed use. As a precaution, it is recommended lake and river users in New Zealand don’t swim or fish in areas of lakes or rivers treated with diquat for 24 hours (as per label directions). Risk to human health has been assessed as low, these precautions have been dropped, but restrictions for drinking of treated water remain at 24 hours. Signage, advertisements, or other notifications must be used to inform lake and river users of treatment timing.
Will Diquat dibromide monohydrate affect aquatic life?
Diquat dibromide monohydrate use for submerged weed control has a low risk for our native plants and animals. Diquat has been registered for use in freshwater for more than 60 years with no identified off-target impacts on native aquatic life from toxicity.
But isn’t Diquat dibromide monohydrate as toxic to aquatic life?
Like many products used around the home every day, Diquat dibromide monohydrate is toxic in its concentrated form. What is most important in assessing toxicity is the dose, or exposure to a substance. An eff ective Diquat dibromide monohydrate concentration for weed control is less than one part in one million parts of water, resulting in a very low concentration when applied to treat submerged weeds. Just as medications need to be the right dose for our health, so the Diquat dibromide monohydrate is applied in the right dose for submerged weed control. This ‘right dose’ will not kill aquatic animals.
What happens to the Diquat dibromide monohydrate?
The length of time that Diquat dibromide monohydrate is present in the aquatic environment is short, concentrations in water drop rapidly after application and usually cannot be detected in water after a few days. Diquat dibromide monohydrate is adsorbed (locked onto) by sediment particles. This deactivated Diquat dibromide monohydrate has no residual toxicity, is not biologically active and is degraded slowly by microbial organisms in the sediments.
Why is Diquat dibromide monohydrate used instead of other weed control methods?
There are a handful of control methods for aquatic weeds and each has advantages and disadvantages depending on the situation. Herbicide use is currently the only method that can achieve weed control over large areas in a short space of time. Other methods are much slower to apply and may not keep pace with the growth of weed. Herbicide is generally the most cost-effective method for large scale underwater weed control.
Is Diquat dibromide monohydrate Safe?
Diquat dibromide monohydrate is safe to use when applied according to the label directions. Diquat dibromide monohydrate binds strongly with soil and has low mobility in the environment. To minimize toxicity to fish and aquatic life, follow the label and treat ponds in sections rather than all at once.
Make sure to wear personal protective equipment prior to mixing or handling Diquat products (wear gloves, long-sleeved clothing, protective eyewear and a safety mask).
Diquat dibromide monohydrate Health Effects
Diquat dibromide monohydrate exhibits low acute toxicity via the oral and inhalation routes of exposure, but exhibits moderate to severe acute toxicity via the dermal route of exposure. Diquat dibromide monohydrate is not an acute skin irritant, nor a dermal sensitizer, but it is considered a moderate to severe.
eye irritant
The mutagenicity database for Diquat dibromide monohydrate indicates that this chemical has no mutagenic or genotoxicity activity and it is not a carcinogen.
There is no evidence of endocrine disruption upon exposure to Diquat dibromide monohydrate.