Multivariate analysis revealed significant diuronrelated changes in the. Whenever tank mixing diuron 80df with other products, observe all precautions, limitations and directions on labels of products used in combination with diuron 80df. The primary hazard is the threat to the environment. Up epa pesticides reregistration eligibility decision. Electrochemical degradation of diuron in chloride medium. This work presents a study of the electrochemical degradation of the herbicide diuron using tiru x ti 1x o 2 and tiir x ti 1x o 2 x 0.
We investigated the responses of chronically contaminated biofilms exposed to shortterm pulses 3 h of diuron. The investigation of the degradation was conducted in the presence and in the absence of chloride. Pdf efficacy and selectivity of metribuzin and diuron in. Pdf effects of the phenylurea herbicide diuron on the physiology. Adsorption of herbicide diuron in pineapplegrowing soils of. Diuron is a member of the class of phenylureas that is urea in.
It was introduced by bayer in 1954 under the trade name of diuron. It belongs to the urea group of herbicides and is readily absorbed through the root system of plants and less readily through the leaves and stems. Diuron 800 wp l7041 e arysta lifescience south africa. It was introduced by bayer in 1954 under the trade name of diuron mechanism of action. Diuron is a broadspectrum residual herbicide that has been registered in. Composicion componente cas onu einecs contenido %, ww diuron 330541 006015009 2063544 80 inertes 20 3. Any weed e population may contain individuals naturally resistant to. If using a concentrated laundry detergent use 250g or ml100l water.
The addition of an approved nonionic surfactant minimum 80% active, where recommended, increases the contact effectiveness of diuron 80df. An experimental study was undertaken to highlight the potential ecotoxicological impact of the herbicide diuron on biofilms during flooding events in a small river morcille in the beaujolais vineyard area france. It has a role as a herbicide, a photosystemii inhibitor, a xenobiotic and an environmental contaminant. Before spraying crops sensitive to gallant ultra herbicide, decontaminate using the following procedure. Please note that this is an authorproduced pdf of an article accepted for publication. A nonselective residual herbicide for the control of a wide range of grasses, broadleaf weeds in land not intended to bear vegetation, including industrial sites, railways, and other noncrop situations. Diuron 3,1 x 104 30 alacloro 2,2 x 105 25 garlon 1,7 x 107 25 simazina 6,1 x 107 25. Plants in plants, diuron undergoes demethylation of the nitrogen atom and hydroxylation at position 2 of the benzene ring. There is a section 18, emergency exemption registration for diuron use on catfish in the states of arkansas, louisiana, and mississippi. For maximum benefits, it is suggested to apply diuron 80df before crops and weeds emerge because it will prevent the seedlings from being able to compete with the crop.
It is used in many agricultural situations, general weed control in. Represents a clear threat to the health of marine and freshwater ecosystems. Environmental protection agency epa or on material safety data sheets. Results are dependent on amount applied and favorable environmental conditions such as high humidity and temperatures of 70. University of hertfordshire, 2011, pesticide properties database, april 2009 version. Like most pesticides, diuron herbicide products contain ingredients in addition to diuron. Diuron 80df can be applied as a postemergent herbicide, but only on specific crops and noncrop areas. Ministerio da agricultura, pecuaria e abastecimento mapa n. Pdf diuron n3,4dichlorophenyln,ndimethylurea, a herbicide belonging to the phenylurea family, is not only widely used to destroy. Diuron 80df may also be used to control emerged weeds. Dcmu is a very specific and sensitive inhibitor of photosynthesis. Multivariate analysis reveals significant diuronrelated. Efeito dos herbicidas diuron, glifosato e paraquat e.
Animals in mammals, metabolism is principally by hydroxylation and dealkylation c. Diuron is a selective herbicide for broadleaf weeds and some annual grasses. A wettable powder herbicide with long residual action for the control of annual weeds as indicated in citrus, avocados, bananas, coffee, mangoes, pineapples, macadamia and pecan nuts and sugarcane as well as for industrial use. Diuron is a member of the class of phenylureas that is urea in which both of the hydrogens attached to one nitrogen are substituted by methyl groups, and one of the hydrogens attached to the other nitrogen is substituted by a 3,4dichlorophenyl group. Dcmu 33,4dichlorophenyl1,1dimethylurea is an algicide and herbicide of the arylurea class that inhibits photosynthesis. Do not apply directly to water, or to areas where surface water is present, or to intertidal areas below the mean high water mark. Quarter fill the tank and add a standard alkali based laundry detergent at 500g or ml100l of water and circulate throughout the system for at least 15 minutes. Diuron 4l is to be mixed with water and applied as a spray for selective control of weeds in certain crops and for nonselective weed control on noncropland areas.
It can cause illness by inhalation, skin absorption andor ingestion. It blocks the plastoquinone binding site of photosystem ii, disallowing the electron flow from. Analysis of the herbicide diuron, three diuron degradates, and six. Is the dominant herbicide entering the great barrier reef. The resistant individuals can eventually dominate the weed population if these herbicides are used repeatedly. Therefore, the risks from the catfish use have been assessed and are discussed in this document. It is noncorrosive to equipment, nonflammable and nonvolatile. Sorption and desorption determine the amount of an herbicide in soil solution. Diuron 50%sc, 80%wdg, 95%tc, herbicide china pesticides. The agency is considering the catfish use for registration under section 3 of fifra.
Diuron the reconsideration of the registrations of selected products. Immediate steps should be taken to limit its spread to the environment. Responses of chronically contaminated biofilms to short. See incorporation table for method of incorporation. For post preemergent application ensure seed is adequately covered with. Classification of herbicides according to mechanism of action, chemical family, and herbicide group.
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