What is diquat dibromide used for?
Diquat dibromide 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.
Is diquat dibromide safe?
* Exposure to large amounts of Diquat Dibromide may cause severe poisoning with nausea, vomiting, diarrhea, tremors, convulsions, and even death. * Repeated exposure to Diquat Dibromide may cause clouding of the eye lenses (cataracts). * Repeated exposure may damage the fingernails, and cause cracked skin.
Is diquat safe for humans?
Diquat dibromide is moderately toxic. It may be harmful to humans if swallowed, inhaled, or absorbed through the skin in large quantities. Its chronic neurotoxic effects have been investigated.
Why is diquat banned?
4 February 2020 In October 2018, The European Commission decided to implement its proposal not to renew its approval in the EU. This decision applies to all products containing diquat, and was based on concerns related to the precautionary principle of exposure of bystanders and residents, as well as birds.
Is Diquat Dibromide carcinogenic?
Diquat dibromide is of moderate acute toxicity causing acute dermal toxicity and primary eye irritation (Toxicity Category II). It is classified as a Group E carcinogen, indicating that it poses no known cancer risk for humans.
How long does diquat stay in water?
~35 days
Diquat is usually detectable in the water column for less than a day to ~35 days after treatment. Diquat will remain in the water column longer when treating a waterbody with sandy soils due to the low organic matter and clay content.
Is diquat safer than glyphosate?
Glyphosate is often the better choice as a non-selective weed killer than Diquat Dibromide. This is because Glyphosate infiltrates plant systems and kills weeds down to the root, while Diquat Dibromide only attacks portions of the plant it is sprayed on.
Where is diquat banned?
In May 2018, the European Commission banned the use of diquat. Diquat is the active ingredient in Reglone, a popular desiccant for pulse growers in Western Canada and a useful tool for European farmers, before the prohibition.
Can I mix glyphosate and Diquat?
It is not advisable to mix Diquat Dibromide and Glyphosate. This study showed that by mixing the two compounds, Glyphosate was rendered less effective. The Diquat in the mix essentially “burns” the plants, preventing them from absorbing the Glyphosate chemical.
How long does Diquat stay in water?
How long does Diquat Dibromide stay in the soil?
Breakdown in soil and groundwater: Diquat dibromide is highly persistent, with reported field half-lives of greater than 1000 days [11].