Cheminova diuron 900 wg herbicide active constituent. 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. Pdf efficient biotransformation of herbicide diuron by bacterial. It is used on noncrop areas and many agricultural crops such as fruit, cotton, sugar cane, alfalfa, and wheat. Diuron dry flowable herbicide active ingredients diuron. It was introduced by bayer in 1954 under the trade name of diuron mechanism of action. The primary hazard is the threat to the environment. Merge is now a separate and distinct product, helping reduce the amount of leftover surfactant in need of disposal and improving environmental stewardship. Diuron inhibits the transfer of electrons from water to the electron acceptor and ultimately. Diuron is a herbicide commonly used in agricultural areas where excess application causes it to leach into rivers, reach sensitive marine environments like the great barrier reef gbr lagoon and pose risks to marine life. In the case of herbicides such as diuron, sesame will recover, but the farmer will notice stunti ng and leaf necrosis on sesame leaves for about 10 days after herbicide application grichar et al. Diuron 4l may also be used for preemergent and postemergent control in noncrop areas such as industrial sites and rightsofway.
In cotton leaves, dcpu was the main metabolite and in soybean leaves dcpmu. Herbicides are broken down by preemergent, postemergent, selective, and nonselective. Up epa pesticides reregistration eligibility decision. Diuron 80df can be applied as a postemergent herbicide, but only on specific crops and noncrop areas. Use a directed spray for higher rates of diuron 900df. It is also used to control weeds and algae in and around water bodies and is a component of marine antifouling paints. Diuron tolerance and potential degradation by pelagic. Epa is now publishing its reregistration eligibility, and risk management decision. Directions for use merge adjuvant is a blend of surfactant and petroleum hydrocarbons designed for use with various herbicide sprays. Do notreplant treated areas within 2 years of an application of this product. Pdf weed control and the use of herbicides in sesame production. Exposure to diuron causes formation of methemoglobin, an abnormal form of the oxygencarrying molecule in blood, hemoglobin. As a surfactant, merge is a key requirement of great weed control.
No special equipment is usually needed when occasionally handling small quantities. Diuron, commonly sold under the brand names karmex, direx, and diuron, is widely used for vegetation control along rights of way. Herbicide brand names, active ingredients, chemical families, and modes of action eric p. These resistant weeds will not be controlled by diuron 500 sc liquid herbicide or. Pdf has the herbicide diuron caused mangrove dieback.
Do not apply directly to water, or to areas where surface water is present, or to intertidal areas. It is noncorrosive to equipment, nonflammable and nonvolatile. It has a role as a herbicide, a photosystemii inhibitor, a xenobiotic and an environmental contaminant. Diuron 4l is a liquid flowable 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. Aim ec herbicides products fmc agricultural solutions. For the control of weeds in asparagus, bananas, cereals, cotton, lupins, pulse crops and sugar cane. 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. Other significant uses include weed control in citrus orchards and alfalfa fields. Herbicides and weed killers can control and prevent weeds from overtaking your lawn. Diuron 80df is a water dispersible granule to be mixed in water and applied as a spray for selective weed control of many annual broadleaf and grass weeds in corn, cotton, sorghum, sugarcane, fruit and nut trees, berries, and certain other crops. A blended surfactant designed for use with overdrive herbicides. Diruon 4l herbicide is a liquid flowable 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. Diuron is readily absorbed through the root system of plants and less readily through the leaves and stems. Refer to the herbicide label for detailed use instructions and restrictions.
Combined effects of temperature and the herbicide diuron on. Aim ec is also popular as a cotton defoliantharvest aid. Read safety directions before opening or using diuron 900df. Temporary skin swelling and redness may occur on contact. Dca would combine exposures from food average, water, and. Diuron 4l herbicide may be used for both preemergent and postemergent weed control.
Toxicology glyphosate is marketed in the united states as isopropylamine salt. It blocks the plastoquinone binding site of photosystem ii, disallowing the. Oryzalin, et029, harrier, oryza, premerge, qualipro. Nufarm flowable diuron liquid herbicide nra approval no 317020200 page 4 of 7 directions for use. Psii herbicides, such as diuron, can increase the sensitivity of corals to. 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. This chapter discusses herbicides other than the chlorophenoxy compounds. Herbicide products are used to get rid of weeds such as nutsedge in turfgrass and landscaped areas using active ingredients like glyphosate to keep your lawn healthy. Prevention, pesticides and toxic substances sep 2 0. Do not apply directly to water, or to areas where surface water is present, or to intertidal areas below the mean. Weed control and the use of herbicides in sesame production.
Information in this guide must be used in conjunction with herbicide label instructions. For preemergence control, combine the product with diuron or ametryn. It was introduced by bayer in 1954 under the trade name of diuron. Do not use on very light sandy or gravelly soils as crop damage may occur. Merge adjuvant can be used with the following herbicides. Pdf the claim that the herbicide diuron in agricultural runoff caused dieback of the grey mangrove avicennia marina in central queensland. Requirements for reducing spray drift for diuron ground and aerial applications. Diuron 80 df pre emergent herbicide 5 lbsdiuron 80 df 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 4l applied preemergence, before emergence of crop and weeds, is an effective procedure because susceptible weeds are controlled in an early, vulnerable seedling state before they compete with the crop. Nufarm flowable diuron liquid herbicide nra approval no 317020200 page 3 of 7. In noncrop applications, diuron is used on industrial sites, on rightsofway, around farm buildings, and on irrigation and drainage ditches. Request pdf on mar 7, 2012, andrea lunaacosta and others published detection of early effects of a single herbicide diuron and a mix of herbicides and pharmaceuticals diuron. Thus diuron is moderately toxic to fish and highly toxic to aquatic invertebrates.
It can cause illness by inhalation, skin absorption andor ingestion. Diuron is not expected to concentrate in aquatic organisms. It blocks the plastoquinone binding site of photosystem ii, disallowing the electron flow from. Environmental fate diuron residues in soil are toxic to plants. Stanley culpepper, extension agronomist weed science. Wash thoroughly with soap and water after handling. Dcmu 33,4dichlorophenyl1,1dimethylurea is an algicide and herbicide of the arylurea class that inhibits photosynthesis. Diuron 10 not set ethylene glycol 60 120 the adi for diuron is set at 0. For grasses and broadleaved weeds up to 5cm high use a minimum of 250l spray solutionha, increase to 350lha for weeds up to 10cm high. 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. Dcmu 3 3,4dichlorophenyl1,1dimethylurea is an algicide and herbicide of the aryl urea class that inhibits photosynthesis. It has a role as a herbicide, a photosystemii inhibitor. Merge adjuvant is a blend of surfactant and petroleum hydrocarbons designed for use with various herbicide sprays.
Use best practices to avoid drift to all other crops and nontarget areas. Ps1 capable of utilizing phenylurea herbicide diuron. Do not apply more than 5 pounds per acre surface sprayed per application with a. A herbicide with long residual action for the control of annual weeds as listed, in citrus, avocados, bananas, coffee, mangoes, pineapples, macadamia and pecan nuts, sugar cane, as well as in industrial areas, along rail tracks and on road shoulders. Immediate steps should be taken to limit its spread to the environment. Diuron 800 wp l7041 e arysta lifescience south africa. See incorporation table for method of incorporation. Detection of early effects of a single herbicide diuron. Diuron is a strong inhibitor of the photosynthesis ii system in plants via the hill reaction. Diuron 4l applied before emergence of crop and weeds is an effective procedure because susceptible weeds are controlled in an early, vulnerable seedling stage before they compete with the crop. Diuron is a substituted urea herbicide used to control a wide variety of annual and perennial broadleaf and grassy weeds, as well as mosses.
Page 1 of 4 material safety data sheet agriliance, llc product names for emergency call. Diuron is registered for pre and postemergent herbicide treatment of both crop. Speed, ease of tank mixing, economy and consistency make aim ec herbicide the product growers ask for when they need weed control quickly. The agencys decision on the individual chemical diuron can be found in the attached document entitled, reregistration eligibility decision for diuron which was approved on september 30, 2003. For post preemergent application ensure seed is adequately covered with. To investigate the impact of diuron on whole prokaryotic communities that underpin the marine food web. Significant skin permeation after contact appears unlikely. Diuron 4l herbicide is manufactured by alligare llc and is a residual herbicide formulated to target annual and perennial grasses and herbaceous weeds in crops. Diuron is registered for use on numerous crop sites such as forage crops, field crops, fruits, vegetables, nuts, and ornamental crops. The hill reaction involves the transfer of electrons from water to an electron acceptor, made possible by the capture of light by chlorophyll a.
For weed resistance management diuron 500 sc liquid herbicide is a group c herbicide. Karmex df diuron pest management double a vineyards. Diuron 4l herbicide may be applied to soil prior to emergence of weeds to control susceptible weed seedlings for an extended period of time. Dcmu is a very specific and sensitive inhibitor of photosynthesis. Adi means acceptable daily intake and noel means noobservableeffectlevel. More flexibility, because youll only purchase what you use. Safety data sheet drexel diuron 4l herbicide section 1. Aim ec acts on contact, with no soil activity, and. The interaction of many equipmentand weatherrelated factors determine the potential for spray drift. With favorable moisture conditions, diuron 4l continues to control weeds for some time as the crop becomes better able to compete. Wear longsleeved shirt, long pants, boots and socks when handling. Producto hexazinona 75 wg ingrediente activo hexazinona.
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