Lines and paragraphs break automatically. /Name /Helv Metribuzin and its degradates (desaminometribuzin, desaminodiketometribuzin, and diketometribuzin) are persistent and mobile. Farmers reluctant to change to conservation tillage consistently rank concern about weed control as their primary reason for not converting to conservation tillage. /BaseFont /Helvetica Atrazine is used during the fallow period for weed control in wheatsorghumfallow, wheatcornfallow, and wheatfallowwheat rotations. Now we have a reduced rate of each component and there is a wealth of recent research showing that reduced rates of herbicides contribute to resistance. The triazine herbicides atrazine, simazine, and metribuzin have been used for effective weed control in warm-season turfgrasses for at least 40 years. >> Robert L. Zimdahl, in Fundamentals of Weed Science (Fifth Edition), 2018. Table 66.1. Metribuzin also underwent photodegradation when irradiated as a thin film on glass surfaces with UV light [sunlight (Devlin et al., 1987; Peek and Appleby, 1989), >290 nm (Pape and Zabik, 1972)], with the formation of DA-metribuzin as the initial photoproduct (Pape and Zabik, 1972). Adobe Acrobat Pro DC 15.23.20053; modified using iText 5.2.1 2000-2012 1T3XT BVBAPesticide Product Label, Omni Brand Metribuzin 4SC,HELENA CHEMICAL COMPANY,5905-612 After 3.5 cm of rain, 89% of the intercepted atrazine had washed off the residue. Atrazine, simazine, and metribuzin are used in corn, atrazine and propazine in sorghum, metribuzin in soybean, and simazine reduces tillage required for weed control in many perennial and tree crops. Greater water storage with chemical fallow, compared with conventional tillage fallow, has increased profitability and reduced risk associated with grain production in the Great Plains of the United States (Norwood, 1994). In the western United States and other arid regions of the world, fallowing land for 1 year or a portion of a year stores some soil moisture, so water availability is sufficient to facilitate germination and better growth of grain crops the following year. /Rotate 0 Not for further distribution unless allowed by the License or with the express written permission of Cambridge University Press. >> 2 0 obj endobj James T. Stevens, J. Charles Eldridge, in Handbook of Pesticide Toxicology (Second Edition), 2001. /Tabs /S It was first introduced in Germany as a new potato herbicide, but within a short time its main use was in soybeans. %%EOF
Triazine herbicides inhibit photosynthesis in certain broadleaf and grassy weeds, and they generally have low toxicity to animals. 1 0 obj /Adieresis /Aring /AE /Ccedilla /Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute Not for further distribution unless allowed by the License or with the express written permission of Cambridge University Press. endobj Typically, the duration of these studies was measured in terms of hours or days. % Economical and effective weed control is also important in sod production; weed-infested sod may not be marketable. ZKq:e [sswQew'8)jfE,TX7TZ\X+5
my!QhQ:j1U(I#=+B2?pqYli-l-lBfP8|NG=`ajV1nA4#l@|=m*%# 3n0lom-O@}uCU:fm(oZ5@AOFU&PO>2@?.f1\I~feG>b#d9Lw_U"IuC6'.sN|Qq%#j%8_? 5 0 obj /Length 10 Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Second, reducing the rate of the combination is one means of allowing a company to remain competitive while offering multiple herbicides in a premix. % /Subtype /XML /Helv 6 0 R
The long-term treatment studies also include hydroponic studies (Hilton et al., 1974, 1976), as well as preemergence studies (Robinson et al., 1970; Gronberg et al., 1971; Church and Flint, 1973; Morgan, 1974; Lenz et al., 1987) and postemergence studies (Morgan, 1972, 1973; Stanley and Flint, 1974; Maun and McLoed, 1978; Schocken et al., 1987) involving analysis of mature plants. Armendriz, G.L. /DR << 0 Thus, adoption of conservation tillage would be slowed or perhaps reversed. >> This class of herbicides includes the asymmetrical triazines, Environmental Benefits of Triazine Use in Conservation Tillage. /dotlessi /lslash /oe /scaron /zcaron 160 /Euro 164 /currency 166 Rapid photodegradation of metribuzin required the presence of oxygen (or hydrogen peroxide), and the rate of photodegradation was slowed by more than an order of magnitude in the absence of oxygen (Muszkat et al., 1998). From: Encyclopedia of Toxicology (Third Edition), 2014, C.R. /BaseFont /ZapfDingbats /Kids [9 0 R] 3 0 obj /Contents [10 0 R 11 0 R 12 0 R] Figure 66.1. uuid:7d6732e4-dc75-4132-8891-cd9de2c12d42 i"RuW$"_+2xj3RNW$f1#L?b#/S6E]/5$Wp&M2!EM[rf$B3Z`]vdeps3e?xmk@S1Jx:~jri4SXM`zc5F@[ ?qED1luTLERQl4m{1}F%C"kw-A(R 9QXln5ul)|Yhm:a|L*P|'p=f8SQ#%I4X9 f!_g_JK*u] D~\TC=GvZf?CR\0y_xUY 1'qMse{!* U&XHA[/up15}\1mn^XQBhMPq72z0.A739FbH{cvaT%$XlX \T5 !IL;ETU/BKscG:_j$:]~$17H Weeds may germinate under crop residue and escape contact with herbicides as they emerge. stream Molecular weight=214.31; Specific gravity (H2O:1) =1.28 @ 20C; Boiling point=(decomposes) 132C; Freezing/Melting point=125127C; Vapor pressure=4107mmHg. HWi>?-pL{C0(:veR+>]G`!WuWnWi'tb'~Tc4K?MU0KujLuYP|UdofW]Uond>U+_yX1?=+s73$V8T\=PQaF7jp_[qDacFO[iQ2g_]@F#|rv]/x6^*/Q#(N}\ju~S EPAlL7qV9vDr%_g2]~_)8]/#qv[)lFh 7f+L>{/kV^9f?=Jk .zPw^F`}h40 v`SVK /Count 1 endstream << Most of these formulations are identified with trade names and major manufacturers in Table 66.1. methyl methanesulfonate metribuzin nitroaniline ortho larger toluidine Richard S. Fawcett, in The Triazine Herbicides, 2008. /Type /Pages endobj Evaluation of hazard profiles of the triazine herbicides reveal that these products are generally not acutely toxic, are well-tolerated when administered to animals over a long period of time, and do not cause birth defects or affect reproduction. The other member of this group, carfentrazone-ethyl, applied in the range of 439g/ha, has proven to be very effective in corn, sorghum, rice, soybean, and small grains to control weeds resistant to the imidazolinone and sulfonylurea herbicides. Metribuzin products are primarily intended for industrial use and no unreasonable risks to humans or the environment have been detected. Farm Progress is part of the Informa Markets Division of Informa PLC. /Encoding 8 0 R >> /Producer (ABBYY FineReader 9.0 Corporate Edition) Metribuzin was first registered in the United States in 1973, and currently there are 86 metribuzin products registered. 10 0 obj As with most planting seasons, this one has been anything but normal. <>stream Metribuzin was launched in 1970 by Bayer under the trade name Sencor and also is sold by DuPont under the trade name Lexone for control of certain broadleaf weeds and grassy weed species. Mild, sulfurous odor. << All rights reserved. endobj /F4 17 0 R cjY)S*9~j-4nd. Conversion from conventional tillage to conservation tillage involves considerable operator learning and crop production risk. U6wWh QOkpT7$r n/ #&. Additionally, there are a lot of premix products available for at-planting residual weed control in soybean that contain a PPO herbicide. gmZro}6o}IIZg. Q}x^mwp8i2vDywPw2TzXPlr-_WBn2D!VMy'YOTo.ulmyjb+DSon9IuQY1UR4|(l|xC%"UQ`_L&ZR\){(xS)p$hZbUa~T3unRI?7]P$YKQ[A"l/ Cool conditions delayed the emergence of Palmer pigweed, but high densities are now being observed in many fields across Arkansas. 4 0 obj For any supplemental labels and information pertaining to the state by state availability of one or more of these herbicides, search for the product(s) of interest, Valent USA LLC Agricultural Products (Select), Valent USA LLC Agricultural Products (Select Max), Amvac Chemical Corporation (Dacthal W-75), Syngenta Crop Protection, LLC (Gramoxone), Syngenta Crop Protection, LLC (Dual II Magnum), Aceto Agricultural Chemicals Corp. (Trifluralin), https://www.intechopen.com/books/herbicides-physiology-of-action-and-safety/reducing-herbicide-residues-from-agricultural-runoff-and-seepage-water, Alachlor + atrazine (Bullet or Lariat) 4 F, Bicyclopyrone + mesotrione + s-metolachlor (AcuronFlexi) 2.86 L, (Arrow, Clethodim, Intensity, Select) 2 EC, Dimethenamid + atrazine (Guardsman Max) 5 F, S-ethyl dipropylethylthiocarbamate (Eptam 20-G), Ethalfluralin + clomazone (Strategy) 2.1 L, Fluthiacet-methyl + mesotrione (Solstice), Nicosulfuron + mesothione (Revulin Q) 51.2 WDG, Saflufenacil + dimethenamid (Verdict) 5.57 EC, (Brawl II, Dual II Magnum, Medal II) 7.64 EC, S-metolachlor + atrazine (Bicep II Magnum) 5.5 F, (Treflan HFP, Trifluralin, Trifluralin HF) 4 EC. Gonzlez, in Encyclopedia of Toxicology (Third Edition), 2014. endobj Allan J. Cessna, in The Triazine Herbicides, 2008. By continuing you agree to the use of cookies. Further, the triazines do not produce cancer in mice or male rats. Informa Markets, a trading division of Informa PLC. 2018-02-22T11:52:47-05:002018-03-07T00:00:03-05:00Java Utility This class of herbicides includes the asymmetrical triazines metribuzin and metamitron, the symmetrical triazine herbicides, and hexazinone. endstream endobj 39 0 obj <> endobj 40 0 obj <> endobj 41 0 obj <>stream The metabolism of metribuzin in plants has been the subject of many short-term and long-term studies dating back to the early 1970s. Increased use of metribuzin would most definitely help protect the PPO herbicides. Prior to Roundup Ready soybean and Roundup-only weed control programs taking over the soybean industry, Dick Oliver, weed scientist at the University of Arkansas, screened Mid-South soybean varieties for tolerance to metribuzin. I routinely talk about the need for using multiple effective modes of action against pigweed or any other resistant-prone weed as a means of protecting herbicides against resistance. Using the preplant program, residual herbicides are applied up to several weeks prior to planting, well before most weeds emerge. Again this year, I will be screening all varieties placed in the Arkansas soybean variety testing trial along with a few additional varieties. X2~>1}y&i3(/cIcNT9.*;X+ &*qF8(4I>hk={t9nM9]| 8;z.n{>!fDmojaBsu:*w]Bl(GtY !hsXL5 DKCf2;e.`x~F^8>%'3S MYQdX~(q3m&@EmfgR5KLXOc_LBDX_W*S2PhQMSXdq{&K5[jnqwWk(>CW_P\3&0 HN}!FP/oNba#VYJKe"Jl@t5h3D#R]1V,QbZok8|{!QmP861 P
Farmers who have successfully converted to conservation tillage have relied on many years of research and have invested many years of experience on their own farms. <> The major symmetrical triazines are further divided into chloro-s-triazines: including simazine, atrazine, terbuthylazine, propazine, cyanazine; the thiomethyl-s-triazines (also referred to as methylthiotriazines): ametryn, prometryn, terbutryn; and the methoxy-s-triazine: prometon.
/ProcSet [/PDF /Text /ImageB /ImageC /ImageI] /Parent 4 0 R /florin /fraction /guilsinglleft /guilsinglright /minus /perthousand /quotedblbase /quotedblleft /quotedblright /quoteleft >> Simazine, on the other hand, is often the symmetrical triazine of choice for weed control on golf courses, large commercial turf landscapes, and in sod production. Number 8860726. Available in various concentrations (4%, 50%, 75%, etc.). /Pages 4 0 R >> If you are over 40 years old, you most likely remember metribuzin as Sencor, but today there is no Sencor available for use in soybean it is only registered for use in turf. In addition, weed infestations in sod can reduce tensile strength and cause problems in harvesting and handling. ^a ?F(7-!qw?!1KsP4@ j5 Walter Heri, James B. Nabors, in The Triazine Herbicides, 2008. %PDF-1.5 % Richard P. Pohanish, in Sittig's Handbook of Pesticides and Agricultural Chemicals (Second Edition), 2015. -pX6 lT!2;xHJ?4`e2O"L)b4vySRH AwaQhp@W9~X]&*gtZSU9=bqr Herbicides, Physiology of Action, and Safety, Edited Volume. endobj Bruce J. Simoneaux, Thomas J. Gould, in The Triazine Herbicides, 2008. %PDF-1.6 Sulfentrazone is a soil-applied preemergence herbicide used in soybean, sugarcane, sunflower, tobacco, and some turf species to control annual broadleaved weeds and some annual grasses. hmoH|D/R4zR%F3[$zfF`-pA;`( G `$p2`4T@XdP2]dV1&o]Zg5 RND86sF~ 9!jT0ZV4a2I|*tN;nH?ZDyV|^>dyZ6GIGHeESG023}1 a6+e i6_Ce. However, tillage increases water and wind erosion, increases evaporation losses, disturbs wildlife habitat, and expends extra fuel and labor. Structures of symmetrical and asymmetrical triazine herbicides. Because triazines are root absorbed and relatively stable in the soil, they can kill small weed seedlings after emergence as roots grow to and encounter the herbicides in the soil. The postemergence activity of atrazine provides control of small emerged weeds from no-till planting-time treatments, often eliminating the need for nonselective herbicides. /Length 1560 A few triazinones (e.g., metribuzin and hexazinone, Section 6.1.4) inhibit photosynthesis. 69 0 obj <>stream >> The symmetrical triazines (s-triazines) have a chlorine, sulfur, or oxygen atom at the 2-position of the ring and are usually substituted in the 4- and 6-positions with alkylamino-group (Fig. << It is absorbed by roots and foliage. << While many other herbicides have been developed for use in warm-season turfgrasses, the triazines are still an integral and economically important family of herbicides for homeowners, lawncare experts, sports field managers, golf course superintendents, sod producers, and other turfgrass specialists.
The long-term treatment studies also include hydroponic studies (Hilton et al., 1974, 1976), as well as preemergence studies (Robinson et al., 1970; Gronberg et al., 1971; Church and Flint, 1973; Morgan, 1974; Lenz et al., 1987) and postemergence studies (Morgan, 1972, 1973; Stanley and Flint, 1974; Maun and McLoed, 1978; Schocken et al., 1987) involving analysis of mature plants. Armendriz, G.L. /DR << 0 Thus, adoption of conservation tillage would be slowed or perhaps reversed. >> This class of herbicides includes the asymmetrical triazines, Environmental Benefits of Triazine Use in Conservation Tillage. /dotlessi /lslash /oe /scaron /zcaron 160 /Euro 164 /currency 166 Rapid photodegradation of metribuzin required the presence of oxygen (or hydrogen peroxide), and the rate of photodegradation was slowed by more than an order of magnitude in the absence of oxygen (Muszkat et al., 1998). From: Encyclopedia of Toxicology (Third Edition), 2014, C.R. /BaseFont /ZapfDingbats /Kids [9 0 R] 3 0 obj /Contents [10 0 R 11 0 R 12 0 R] Figure 66.1. uuid:7d6732e4-dc75-4132-8891-cd9de2c12d42 i"RuW$"_+2xj3RNW$f1#L?b#/S6E]/5$Wp&M2!EM[rf$B3Z`]vdeps3e?xmk@S1Jx:~jri4SXM`zc5F@[ ?qED1luTLERQl4m{1}F%C"kw-A(R 9QXln5ul)|Yhm:a|L*P|'p=f8SQ#%I4X9 f!_g_JK*u] D~\TC=GvZf?CR\0y_xUY 1'qMse{!* U&XHA[/up15}\1mn^XQBhMPq72z0.A739FbH{cvaT%$XlX \T5 !IL;ETU/BKscG:_j$:]~$17H Weeds may germinate under crop residue and escape contact with herbicides as they emerge. stream Molecular weight=214.31; Specific gravity (H2O:1) =1.28 @ 20C; Boiling point=(decomposes) 132C; Freezing/Melting point=125127C; Vapor pressure=4107mmHg. HWi>?-pL{C0(:veR+>]G`!WuWnWi'tb'~Tc4K?MU0KujLuYP|UdofW]Uond>U+_yX1?=+s73$V8T\=PQaF7jp_[qDacFO[iQ2g_]@F#|rv]/x6^*/Q#(N}\ju~S EPAlL7qV9vDr%_g2]~_)8]/#qv[)lFh 7f+L>{/kV^9f?=Jk .zPw^F`}h40 v`SVK /Count 1 endstream << Most of these formulations are identified with trade names and major manufacturers in Table 66.1. methyl methanesulfonate metribuzin nitroaniline ortho larger toluidine Richard S. Fawcett, in The Triazine Herbicides, 2008. /Type /Pages endobj Evaluation of hazard profiles of the triazine herbicides reveal that these products are generally not acutely toxic, are well-tolerated when administered to animals over a long period of time, and do not cause birth defects or affect reproduction. The other member of this group, carfentrazone-ethyl, applied in the range of 439g/ha, has proven to be very effective in corn, sorghum, rice, soybean, and small grains to control weeds resistant to the imidazolinone and sulfonylurea herbicides. Metribuzin products are primarily intended for industrial use and no unreasonable risks to humans or the environment have been detected. Farm Progress is part of the Informa Markets Division of Informa PLC. /Encoding 8 0 R >> /Producer (ABBYY FineReader 9.0 Corporate Edition) Metribuzin was first registered in the United States in 1973, and currently there are 86 metribuzin products registered. 10 0 obj As with most planting seasons, this one has been anything but normal. <>stream Metribuzin was launched in 1970 by Bayer under the trade name Sencor and also is sold by DuPont under the trade name Lexone for control of certain broadleaf weeds and grassy weed species. Mild, sulfurous odor. << All rights reserved. endobj /F4 17 0 R cjY)S*9~j-4nd. Conversion from conventional tillage to conservation tillage involves considerable operator learning and crop production risk. U6wWh QOkpT7$r n/ #&. Additionally, there are a lot of premix products available for at-planting residual weed control in soybean that contain a PPO herbicide. gmZro}6o}IIZg. Q}x^mwp8i2vDywPw2TzXPlr-_WBn2D!VMy'YOTo.ulmyjb+DSon9IuQY1UR4|(l|xC%"UQ`_L&ZR\){(xS)p$hZbUa~T3unRI?7]P$YKQ[A"l/ Cool conditions delayed the emergence of Palmer pigweed, but high densities are now being observed in many fields across Arkansas. 4 0 obj For any supplemental labels and information pertaining to the state by state availability of one or more of these herbicides, search for the product(s) of interest, Valent USA LLC Agricultural Products (Select), Valent USA LLC Agricultural Products (Select Max), Amvac Chemical Corporation (Dacthal W-75), Syngenta Crop Protection, LLC (Gramoxone), Syngenta Crop Protection, LLC (Dual II Magnum), Aceto Agricultural Chemicals Corp. (Trifluralin), https://www.intechopen.com/books/herbicides-physiology-of-action-and-safety/reducing-herbicide-residues-from-agricultural-runoff-and-seepage-water, Alachlor + atrazine (Bullet or Lariat) 4 F, Bicyclopyrone + mesotrione + s-metolachlor (AcuronFlexi) 2.86 L, (Arrow, Clethodim, Intensity, Select) 2 EC, Dimethenamid + atrazine (Guardsman Max) 5 F, S-ethyl dipropylethylthiocarbamate (Eptam 20-G), Ethalfluralin + clomazone (Strategy) 2.1 L, Fluthiacet-methyl + mesotrione (Solstice), Nicosulfuron + mesothione (Revulin Q) 51.2 WDG, Saflufenacil + dimethenamid (Verdict) 5.57 EC, (Brawl II, Dual II Magnum, Medal II) 7.64 EC, S-metolachlor + atrazine (Bicep II Magnum) 5.5 F, (Treflan HFP, Trifluralin, Trifluralin HF) 4 EC. Gonzlez, in Encyclopedia of Toxicology (Third Edition), 2014. endobj Allan J. Cessna, in The Triazine Herbicides, 2008. By continuing you agree to the use of cookies. Further, the triazines do not produce cancer in mice or male rats. Informa Markets, a trading division of Informa PLC. 2018-02-22T11:52:47-05:002018-03-07T00:00:03-05:00Java Utility This class of herbicides includes the asymmetrical triazines metribuzin and metamitron, the symmetrical triazine herbicides, and hexazinone. endstream endobj 39 0 obj <> endobj 40 0 obj <> endobj 41 0 obj <>stream The metabolism of metribuzin in plants has been the subject of many short-term and long-term studies dating back to the early 1970s. Increased use of metribuzin would most definitely help protect the PPO herbicides. Prior to Roundup Ready soybean and Roundup-only weed control programs taking over the soybean industry, Dick Oliver, weed scientist at the University of Arkansas, screened Mid-South soybean varieties for tolerance to metribuzin. I routinely talk about the need for using multiple effective modes of action against pigweed or any other resistant-prone weed as a means of protecting herbicides against resistance. Using the preplant program, residual herbicides are applied up to several weeks prior to planting, well before most weeds emerge. Again this year, I will be screening all varieties placed in the Arkansas soybean variety testing trial along with a few additional varieties. X2~>1}y&i3(/cIcNT9.*;X+ &*qF8(4I>hk={t9nM9]| 8;z.n{>!fDmojaBsu:*w]Bl(GtY !hsXL5 DKCf2;e.`x~F^8>%'3S MYQdX~(q3m&@EmfgR5KLXOc_LBDX_W*S2PhQMSXdq{&K5[jnqwWk(>CW_P\3&0 HN}!FP/oNba#VYJKe"Jl@t5h3D#R]1V,QbZok8|{!QmP861 P
Farmers who have successfully converted to conservation tillage have relied on many years of research and have invested many years of experience on their own farms. <> The major symmetrical triazines are further divided into chloro-s-triazines: including simazine, atrazine, terbuthylazine, propazine, cyanazine; the thiomethyl-s-triazines (also referred to as methylthiotriazines): ametryn, prometryn, terbutryn; and the methoxy-s-triazine: prometon.
/ProcSet [/PDF /Text /ImageB /ImageC /ImageI] /Parent 4 0 R /florin /fraction /guilsinglleft /guilsinglright /minus /perthousand /quotedblbase /quotedblleft /quotedblright /quoteleft >> Simazine, on the other hand, is often the symmetrical triazine of choice for weed control on golf courses, large commercial turf landscapes, and in sod production. Number 8860726. Available in various concentrations (4%, 50%, 75%, etc.). /Pages 4 0 R >> If you are over 40 years old, you most likely remember metribuzin as Sencor, but today there is no Sencor available for use in soybean it is only registered for use in turf. In addition, weed infestations in sod can reduce tensile strength and cause problems in harvesting and handling. ^a ?F(7-!qw?!1KsP4@ j5 Walter Heri, James B. Nabors, in The Triazine Herbicides, 2008. %PDF-1.5 % Richard P. Pohanish, in Sittig's Handbook of Pesticides and Agricultural Chemicals (Second Edition), 2015. -pX6 lT!2;xHJ?4`e2O"L)b4vySRH AwaQhp@W9~X]&*gtZSU9=bqr Herbicides, Physiology of Action, and Safety, Edited Volume. endobj Bruce J. Simoneaux, Thomas J. Gould, in The Triazine Herbicides, 2008. %PDF-1.6 Sulfentrazone is a soil-applied preemergence herbicide used in soybean, sugarcane, sunflower, tobacco, and some turf species to control annual broadleaved weeds and some annual grasses. hmoH|D/R4zR%F3[$zfF`-pA;`( G `$p2`4T@XdP2]dV1&o]Zg5 RND86sF~ 9!jT0ZV4a2I|*tN;nH?ZDyV|^>dyZ6GIGHeESG023}1 a6+e i6_Ce. However, tillage increases water and wind erosion, increases evaporation losses, disturbs wildlife habitat, and expends extra fuel and labor. Structures of symmetrical and asymmetrical triazine herbicides. Because triazines are root absorbed and relatively stable in the soil, they can kill small weed seedlings after emergence as roots grow to and encounter the herbicides in the soil. The postemergence activity of atrazine provides control of small emerged weeds from no-till planting-time treatments, often eliminating the need for nonselective herbicides. /Length 1560 A few triazinones (e.g., metribuzin and hexazinone, Section 6.1.4) inhibit photosynthesis. 69 0 obj <>stream >> The symmetrical triazines (s-triazines) have a chlorine, sulfur, or oxygen atom at the 2-position of the ring and are usually substituted in the 4- and 6-positions with alkylamino-group (Fig. << It is absorbed by roots and foliage. << While many other herbicides have been developed for use in warm-season turfgrasses, the triazines are still an integral and economically important family of herbicides for homeowners, lawncare experts, sports field managers, golf course superintendents, sod producers, and other turfgrass specialists.