Registration LOAEL = 360 mg/kg, based on a decrease in mean number of fetuses/litter and an increase in post-implantation loss. Latest Registration Process: Registration Review . Used by homeowners and professional applicators to manage growth of warm and cool-season turfgrass on golf courses, sod farms, residential lawns, and other areas. C. How can I file an objection or hearing request? Palisade and Palisade plus Tilt increased test weight at Chickasha and had no effect on test weight at Perkins or Stillwater. This additional margin of safety is commonly referred to as the FQPA SF. Many Oklahoma wheat farmers battled lodged wheat in 2013 and are looking to plant growth regulators to help reduce lodging in 2014. Use spark-proof tools and explosion-proof equipment. We conducteda separate trial evaluating Palisade in drought stress environments that was partially funded by Syngenta. Mix in manganese. In laboratory experiments with annual . documents in the last year, 121 // -->, A data sheet from the Compendium of Pesticide Common Names, InChI=1S/C13H16O5/c1-2-18-13(17)8-5-9(14)11(10(15)6-8)12(16)7-3-4-7/h7-8,16H,2-6H2,1H3, ethyl 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylate. Employees. 2. In making its tolerance decisions, EPA seeks to harmonize U.S. tolerances with international standards whenever possible, consistent with U.S. food safety standards and agricultural practices. The Docket Facility is open from 8:30 a.m. to 4 p.m., Monday through Friday, excluding legal holidays. Room temperature in continental US; may vary elsewhere. The telephone number for the Public Reading Room is (202) 566-1744, and the telephone number for the OPP Docket is (703) 305-5805. ii. Dietary Exposure Evaluation Model (DEEMTM) 7.81 default concentration factors were used to estimate residues of trinexapac-ethyl in processed commodities. In addition to filing an objection or hearing request with the Hearing Clerk as described in 40 CFR part 178, please submit a copy of the filing (excluding any Confidential Business Information (CBI)) for inclusion in the public docket. Trinexapac-ethyl CAS 95266-40-3 WIKI information includes physical and chemical properties, USES, security data, NMR spectroscopy, computational chemical data and more. The toxicology database for trinexapac-ethyl is largely complete, with the exception of a subchronic neurotoxicity study, which is a new data requirement under 40 CFR part 158 for registration of a pesticide (food and non-food uses OPPTS 870.6200b). Do not discharge to sewer systems. Compliance with the tolerance levels is to be determined by measuring both trinexapac-ethyl, ethyl 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylate and the associated metabolite trinexpac, 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylic acid, calculated as the stoichiometric equivalent of trinexapac-ethyl. The literature also shows that reduction in lodging is relative to the straw strength of the variety. ABSTRACT. For more information on the general principles EPA uses in risk characterization and a complete description of the risk assessment process, see http://www.epa.gov/pesticides/factsheets/riskassess.htm. There are no tolerances currently established for trinexapac-ethyl. Monoisotopic mass 252.099777 Da. Key words: Leaf architecture, yield components, plant growth, plant growth regulator, Zea mays L. rendition of the daily Federal Register on FederalRegister.gov does not documents in the last year, 287 Counts are subject to sampling, reprocessing and revision (up or down) throughout the day. Trinexapac-ethyl is used to control the growth on various grass species and crops. Box 18300, Greensboro, NC 27419. There is the potential for incidental oral exposure; however, since there is no toxicological endpoint of concern for that route, a quantitative assessment was not conducted. documents in the last year, by the Centers for Medicare & Medicaid Services Receipt of a Pesticide Petition Filed for Residues of B. . documents in the last year, 36 Any trinexapac-ethyl that hits the soil is lost. endstream endobj startxref I have served as an Assistant Professor and Small Grains Extension Specialist at Oklahoma State University since August 2019. legal research should verify their results against an official edition of About the Federal Register Germination studies were conducted using seeds of artichoke thistle and common teasel under a range of TE . Clethodim. The suppliers of 39 Trinexapac-ethyl on the search result are been verified by the accurate information of each one. In terms of revenue, the global top. The OFR/GPO partnership is committed to presenting accurate and reliable 346a, any person may file an objection to any aspect of this regulation Start Printed Page 12741and may also request a hearing on those objections. The article can be found at the link below: Anderson, N.P., D.P. Acting Director, Registration Division, Office of Pesticide Programs. Evidence of increased qualitative and quantitative susceptibility to offspring exists at or above the limit dose of the developmental and reproduction studies. Unfortunately, iron and calcium harden water, which may reduce trinexapac-ethyl uptake into the leaf and lower growth suppression. documents in the last year, 861 Section 408(b)(2)(C) of FFDCA requires EPA to give special consideration to exposure of infants and children to the pesticide chemical residue in establishing a tolerance and to ensure that there is a reasonable certainty that no harm will result to infants and children from aggregate exposure to the pesticide chemical residue. An endpoint of concern was not identified for the general U.S. population; however, the acute dietary assessment is protective of women that may become pregnant. The method may be requested from: Chief, Analytical Chemistry Branch, Environmental Science Center, 701 Mapes Rd., Ft. Meade, MD 20755-5350; telephone number: (410) 305-2905; email address: residuemethods@epa.gov. Do NOT wash away into sewer. The North American Industrial Classification System (NAICS) codes have been provided to assist you and others in determining whether this action might apply to certain entities. As to residue levels in food, EPA assumed that residues are present in all commodities at the tolerance level and that 100% of commodities with tolerances are treated with trinexapac-ethyl. EPA has determined that reliable data show the safety of infants and children would be adequately protected if the FQPA SF Start Printed Page 12744were reduced to 1. Common Name Trade Name(s) Amicarbazone -Xonerate 70WDG Aminoclopyrachlor -Imprelis 80DF, 2SL Aminoclopyrachlor + chlorosulfuron -Perspective . A . documents in the last year, 24 02/28/2023, 267 While application of Palisade resulted in numeric reductions in plant height at Chickasha and Stillwater in 2013, differences among treatments were not statistically significant. In addition, this action does not impose any enforceable duty or contain any unfunded mandate as described under Title II of the Unfunded Mandates Reform Act (UMRA) (2 U.S.C. Therefore, EPA is increasing tolerances for residues of trinexapac-ethyl, ethyl 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylate, including Start Printed Page 70064its metabolites and degradates, in or on sugarcane, cane at 1.5 ppm, and sugarcane, molasses at 5 ppm. Lodging at head emergence, for example, can cause as little as 30 or as much as 80% yield reduction. Recommendations may change as further research is conducted and new information is obtained. Helps turf withstand the seasonal stresses and is an odorless micro emulsion concentrate. Carefully collect remainder. No. 2015. Until the ACFR grants it official status, the XML Addresses for mail and hand delivery of objections and hearing requests are provided in 40 CFR 178.25(b). from 47 agencies. 02/28/2023, 828 Application of Palisade plus Tilt reduced lodging over Palisade alone at Chickasha. Application of Palidsade or Palisade plus Tilt resulted in numeric reductions in lodging scores at Stillwater in 2013, but the result were too variable to result in statistical significance. For complete information about, and access to, our official publications Quality CAS 95266-40-3 Trinexapac-ethyl - find quality Agrochemical Pesticide, Organic Acid & Agrochemical Pesticide from Hebei Luantong trade.co of China Suppliers - 168640825. . Quick Resources. on Superintendents across the Southeast are looking for ways to maintain their golf course with fewer staff members. Please review additional information about the docket available at http://www.epa.gov/dockets. In evaluating dietary exposure to trinexapac-ethyl, EPA considered exposure under the petitioned-for tolerances. Section 180.662 is added to subpart C to read as follows: (a) General. The acute dietary exposure estimate for females 13 to 49 years old will only utilize 2% of the aPAD, which is well below the Agency's level of concern (100% of the aPAD). The finer the spray particle size, the more uptake and suppression youre likely to get. Discharge into the environment must be avoided. The thicker the wheat crop and/or the taller the wheat crop, the more force that winds exert on the root anchorage system and the greater the likelihood of lodging. These tools are designed to help you understand the official document Half fill the sprayer with water, add the MODDUS then top up the tank whilst maintaining agitation. The Public Inspection page may also Do not contaminate water, foodstuffs, feed or seed by storage or disposal. I provided 2013 results in a blog post last year, and this post provides an update including our 2014 findings. daily Federal Register on FederalRegister.gov will remain an unofficial Cumulative effects from substances with a common mechanism of toxicity. ), 2777 S. Crystal Dr., Arlington, VA. regulatory information on FederalRegister.gov with the objective of The President of the United States communicates information on holidays, commemorations, special observances, trade, and policy through Proclamations. [1]. the current document as it appeared on Public Inspection on It is used to control the growth on various grass species and crops. ChemSpider ID 83439. EPA has evaluated the available toxicity data and considered its validity, completeness, and reliability as well as the relationship of the results of the studies to human risk. For information regarding EPA's efforts to determine which chemicals have a common mechanism of toxicity and to evaluate the cumulative effects of such chemicals, see EPA's Web site at http://www.epa.gov/pesticides/cumulative. We conducted the trial at Stillwater (Irr), Perkins (Irr), and Chickasha (Non-Irr). In 2013 we evaluated the plant growth regulator trinexapac-ethyl, which is sold under the trade name Palisade. For complete information about, and access to, our official publications Register (ACFR) issues a regulation granting it official legal status. Furthermore, similar lesions were not observed in the rat or mouse following subchronic or chronic dietary exposure, and there was no other evidence in any species tested to indicate a neurotoxicity potential. This site displays a prototype of a Web 2.0 version of the daily EPA is setting different levels than were proposed based on EPA's analysis of the field trial data using the Organization for Economic Cooperation and Development tolerance calculation procedures. Please note that, to comply with Canada's . It was viewed 32 times while on Public Inspection. Results of the acute neurotoxicity study show no indications of neurotoxicy at the highest dose. This repetition of headings to form internal navigation links Trinexapac-ethyl 4-()-3,5-4-(Cyclopropyl-alpha-hydroxymethylene)-3,5-dioxo-cyclohexanecarboxylic acid ethyl ester C13H16O5 252.27 FW252.27 36.0mp36.0>270bp>270pKa: 4.71.6mPa(20) 2.16mpa(25)(20g/L)2.8(pH 4.9)10.2(pH 5.5)21.1(pH 8.2)5% trinexapac-ethyl is approved for use . documents in the last year, 287 (We`ll never share your email address with a third-party.). My best hypothesis is that the treated plots lodged later than the non treated plots, as all plots were standing at anthesis (see picture below). Prevent further spillage or leakage if it is safe to do so. informational resource until the Administrative Committee of the Federal We conducted the trial at Stillwater (Irr), Perkins (Irr), and Chickasha (Non-Irr). Trinexapac-ethyl; tolerances for residues. Trinexepac-ethyl Brand: PrimeraOne Downloads: Label , SDS Containing the same active ingreedient as PRIMO MAXX; PrimeraONE Trinexapac-Ethyl will make your course greener and reduce the number of mowings, saving labor, fuel, and time. Thus, the Agency has determined that Executive Order 13132, entitled Federalism (64 FR 43255, August 10, 1999) and Executive Order 13175, entitled Consultation and Coordination with Indian Tribal Governments (65 FR 67249, November 9, 2000) do not apply to this final rule. 1. Consistent with section 408(b)(2)(D) of FFDCA, and the factors specified in section 408(b)(2)(D) of FFDCA, EPA has reviewed the available scientific data and other relevant information in support of this action. the Federal Register. Each document posted on the site includes a link to the In this Issue, Documents MODDUS contains trinexapac-ethyl for use as a growth regulator in wheat, barley, oats, rye, triticale, durum wheat and ryegrass seed crops. Trinexapac-ethyl can be used in many areas that can be frequented by the general population including residential areas (e.g., home lawns, recreational turf). This information is not part of the official Federal Register document. EPA determines whether acute and chronic dietary pesticide exposures are safe by comparing aggregate exposure estimates to the aPAD and cPAD. Therefore, 40 CFR chapter I is amended as follows: 1. 2. Many of the proposed tolerances are different from the tolerances being set by EPA. This action directly regulates growers, food processors, food handlers, and food retailers, not States or Tribes, nor does this action alter the relationships or distribution of power and responsibilities established by Congress in the preemption provisions of FFDCA section 408(n)(4). 1029 0 obj <>/Filter/FlateDecode/ID[<9B9F72845FCBC54B95A1BA019DA6AE45>]/Index[1016 20]/Info 1015 0 R/Length 73/Prev 68852/Root 1017 0 R/Size 1036/Type/XRef/W[1 2 1]>>stream Due to the low acute toxicity of trinexapac-ethyl the allocation of an ARfD, and hence an acute consumer risk assessment was not considered necessary. Palisade is a giberellic acid inhibitor and works primarily by reducing plant height. Trinexapac-ethyl. Soil metabolism of trinexapac-ethyl yields the major metabolite trinexapac, mineralisation to CO. 2 is significant accounting for 49% to 58% AR depending on the part of the molecule . Additionally, T-NEX is the perfect pre-stress conditioning choice for the coming season. The Codex Alimentarius is a joint U.N. Food and Agriculture Organization/World Health Organization food standards program, and it is recognized as an international food safety standards-setting organization in trade agreements to which the United States is a party. establishing the XML-based Federal Register as an ACFR-sanctioned Potentially affected entities may include: You may access a frequently updated electronic version of EPA's tolerance regulations at 40 CFR part 180 through the Government Publishing Office's e-CFR site at http://www.ecfr.gov/cgi-bin/text-idx?&c=ecfr&tpl=/ecfrbrowse/Title40/40tab_02.tpl. for better understanding how a document is structured but ), nor does it require any special considerations under Executive Order 12898, entitled Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations (59 FR 7629, February 16, 1994). Trinexapac-ethyl is a synthetic plant growth regulator that is derived from cyclohexanecarboxylate. Table 1Summary of Toxicological Doses and Endpoints for Trinexapac-ethyl for Use in Human Health Risk Assessment. As to residue levels in food, EPA assumed that residues are present in all commodities at the tolerance level and that 100% of commodities with tolerances are treated with trinexapac-ethyl. For non-threshold risks, the Agency assumes that any amount of exposure will lead to some degree of risk. documents in the last year, by the Fish and Wildlife Service Research has shown that increasing the soil water content from 17 to 26% reduced the force required for anchorage failure by 33%, and as little as 0.25 inches of water plus 11 mph winds were enough to cause lodging. Trinexapac Ethyl improves rich color and root mass development. See what the USGA is doing to ensure a strong future for the game. documents in the last year, 87 on FederalRegister.gov It is interesting to note that the Palisade treatment increased grain yield at Perkins even though the plots lodged at comparable levels as the non treated check. Chemical Name: Trinexapac-ethyl: Section 18 of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) authorizes EPA to allow an unregistered use of a pesticide for a limited time if EPA determines that an emergency condition exists. More information and documentation can be found in our . Final Decision Document- First Food Registrations of Decision Memo to Register First Food Uses, Proposed End-use product label for Palisade EC, Proposed End-use product label for Palisade 2EC. Objections and requests for hearings must be received on or before January 4, 2021, and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.C. Acute aggregate risk takes into account exposure to residues in food and drinking water alone. legal research should verify their results against an official edition of To summarize this first year of work with plant growth regulators, we found a trend for one to two inch reductions in plant height when Palisade or Palisade plus Tilt were applied, but this only translated to increased grain yield at one site. documents in the last year, 11 Section 408(b)(2)(A)(i) of FFDCA allows EPA to establish a tolerance (the legal limit for a pesticide chemical residue in or on a food) only if EPA Start Printed Page 70063determines that the tolerance is safe. Section 408(b)(2)(A)(ii) of FFDCA defines safe to mean that there is a reasonable certainty that no harm will result from aggregate exposure to the pesticide chemical residue, including all anticipated dietary exposures and all other exposures for which there is reliable information. This includes exposure through drinking water and in residential settings, but does not include occupational exposure. * * *. Comments were received on the notice of filing. Trade name Tweak Yield and Quality Enhancer Other names: Trinexapac-ethyl 250 g/L EC, CHA 8830 Product Use: Improves the percent of thebaine in Poppies. Revising the existing entries in the table for Sugarcane, cane and Sugarcane, molasses. Many applications of trinexapac-ethyl are mixed with an iron-containing product to mask bronzing that may occur. What is trinexapac-ethyl? In addition, EPA periodically reevaluates pesticides to ensure their safety in light of new scientific and regulatory information. Objections and requests for hearings must be received on or before May 1, 2012, and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.C. 1. on Furthermore, the brain lesions observed in the chronic dog study were not observed in the sub-chronic dog study up to 890 mg/kg/day and are thus not likely to develop from a short-term exposure. This final rule directly regulates growers, food processors, food handlers, and food retailers, not States or tribes, nor does this action alter the relationships or distribution of power and responsibilities established by Congress in the preemption provisions of section 408(n)(4) of FFDCA. Lodging occurs due to a variety of factors, and as shown in the figure below, the timing of lodging will determine the final impact on grain yield. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Full disclosure: Syngenta donated the product for this trial, but the only funding for the research was provided by the Oklahoma Agricultural Experiment Station and the Oklahoma Cooperative Extension Service. Classification Codes. for better understanding how a document is structured but Application of Palisade plus Tilt reduced lodging over Palisade alone at Chickasha. Health considerations (b) Section 18 emergency exemptions. 801 et seq. Remove all sources of ignition. Federal Register. EPA assessed residential exposure with the assumption that homeowner handlers wear shorts, short-sleeved shirts, socks, and shoes, and that they complete all tasks associated with the use of a pesticide product including mixing/loading, if needed, as well as the application. EPA considers the international maximum residue limits (MRLs) established by the Codex Alimentarius Commission (Codex), as required by FFDCA section 408(b)(4). Our results are consistent with other wheat plant growth regulator research, which has reported similar variation in response among sites and years. You may be potentially affected by this action if you are an agricultural producer, food manufacturer, or pesticide manufacturer. Compliance with the tolerance levels specified below is to be determined by measuring only the free and conjugated forms of both trinexapac-ethyl, ethyl 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylate and trinexapac, 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylic acid, calculated as the stoichiometric equivalent of trinexapac-ethyl, in or on the commodity. Roanoke, VA 24016. A Rule by the Environmental Protection Agency on 03/02/2012. In this section you will find the primary documents produced to support the registration and review processes. Use the PDF linked in the document sidebar for the official electronic format. are not part of the published document itself. Can you pronounce this word better Register documents. Safe transaction of chemical will be made based on true information. Trinexapac-ethyl, TMS derivative. Furthermore, the lesions remained confined to the supporting cells in the central nervous system (CNS) and did not progress to more advanced or more extensive damage of the nervous tissue. documents in the last year, 37 Residues were extracted from wheat with acetonitrile in aqueous phosphate buffer (pH 7) overnight. Most requests are made by state . documents in the last year, 522 The Codex Alimentarius is a joint United Nations Food and Agriculture Organization/World Health Organization food standards program, and it is recognized as an international food safety standards-setting organization in trade agreements to which the United States is a party. The mutagenicity database is also complete, with no evidence of mutagenicity. Refer for medical attention . Specific information on the studies received and the nature of the adverse effects caused by trinexapac-ethyl as well as the no-observed-adverse-effect-level and the lowest-observed-adverse-effect-level from the toxicity studies can be found at http://www.regulations.gov in the document, Trinexapac-ethyl: Human Health Risk Assessment for the Section 3 Registration Action on Cereal Grains, Sugarcane, and Grasses Grown for Seed p. 48 in docket ID number EPA-HQ-OPP-2010-0524. That is, a plant growth regulator will not make a lodging prone variety stand like one with excellent straw strength, rather they will make it less prone to lodging relative to the same variety non treated. The President of the United States issues other types of documents, including but not limited to; memoranda, notices, determinations, letters, messages, and orders. 3501 et seq. Do not let the chemical enter drains. Federal Register provide legal notice to the public and judicial notice These tools are designed to help you understand the official document Classification: Not likely to be Carcinogenic to Humans. As such, the Agency has determined that this action will not have a substantial direct effect on States or tribal governments, on the relationship between the national government and the States or tribal governments, or on the distribution of power and responsibilities among the various levels of government or between the Federal Government and Indian tribes. Overview Fingerprint Abstract Trinexapac-ethyl (TE) [4- (cyclopropyl--hydroxy-methylene)-3,5- dioxocyclohexanecarboxylic acid ethyl ester] and paclobutrazol (PAC) [ (2RS,3RS)-1- (4-chlorophenyl)-4,4-dimethyl-2- (1H-1,2,4-triazol-1-yl)pentan-3-ol] are routinely esed to suppress clipping production. The method may be requested from: Chief, Analytical Chemistry Branch, Environmental Science Center, 701 Mapes Rd., Ft. Meade, MD 20755-5350; telephone number: (410) 305-2905; email address: residuemethods@epa.gov. Counts are subject to sampling, reprocessing and revision (up or down) throughout the day. has no substantive legal effect. The analysis and recommendations made in this blog post are preliminary and based on research findings from 2013. Trinexapac-ethyl is a plant growth regulator that inhibits the biosynthesis of gibberellin. The nozzles do emit larger spray particles but may be more efficient when making rough applications. The numbers in the figure do not account for harvest losses, which can exceed losses associated with lower photosynthetic capacity shown in the figure. documents in the last year, 36 Uncertainty/safety factors (U/SF) are used in conjunction with the POD to calculate a safe exposure levelgenerally referred to as a population-adjusted dose (PAD) or a reference dose (RfD)and a safe margin of exposure (MOE). Trinexapac (free acid) 112ZF04MPX Cyclohexanecarboxylic acid, 4- (cyclopropylcarbonyl)-3,5-dioxo- Cyclohexanecarboxylic acid, 4- (cyclopropylhydroxymethylene)-3,5-dioxo- Trinexapac acid 4- (Cyclopropyl (hydroxy)methylene)-3,5-dioxocyclohexanecarboxylic acid UNII-112ZF04MPX Trinexapac [ISO] SCHEMBL125835 CHEBI:83454 DTXSID90559517 DTXSID501019900 on [FR Doc. on NARA's archives.gov. EPA's exposure assessments have been updated to include the additional exposure from the increased tolerance of trinexapac-ethyl from use in or on sugarcane, cane and sugarcane, molasses. We are conducting the same trial in 2014 along with a separate trial evaluating Palisade in drought stress environments that is partially funded by Syngenta. Lose the iron and calcium. If you are worried about bronzing, tank mix a product that contains manganese rather than iron. 2020-23040 Filed 11-3-20; 8:45 am], updated on 4:15 PM on Tuesday, February 28, 2023, updated on 8:45 AM on Tuesday, February 28, 2023, 104 documents Controlled incineration with flue gas scrubbing is possible for combustible packaging materials. Therefore, an additional 10x database UF was not retained for lack of inhalation toxicity data and these data are not being required. This early-season fungicide application will not, however, substitute for a fungicide application at flag leaf. EPA uses the term post-application to describe exposure to individuals that occur as a result of being in an environment that has been previously treated with a pesticide. Because this action has been exempted from review under Executive Order 12866, this action is not subject to Executive Order 13211, entitled Actions Concerning Regulations That Significantly Affect Energy Supply, Distribution, or Use (66 FR 28355, May 22, 2001) or Executive Order 13045, entitled Protection of Children from Environmental Health Risks and Safety Risks (62 FR 19885, April 23, 1997), nor is it considered a regulatory action under Executive Order 13771, entitled Reducing Regulations and Controlling Regulatory Costs (82 FR 9339, February 3, 2017). why is my uterus twitching, edd debit card withdrawal limit, colt official police 38 special revolver value, To residues in food and drinking water and in residential settings, but does include! From wheat with acetonitrile in aqueous phosphate buffer ( pH 7 ) overnight that occur! 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