WEED CONTROL IN GRASS PASTURES AND HAYFIELDS (Including bermudagrasses, bahiagrasses, fescues, and other perennial pasture grasses) Patrick E. McCullough, Extension Agronomist-Weed Science
BROADCAST RATE/ACRE USE STAGE/ AMOUNT OF POUNDS ACTIVE HERBICIDE FORMULATION INGREDIENT 5(0$5.6$1'35(&$87,216 NEWLY SPRIGGED BERMUDAGRASS diuron OEV Preemergence applications of diuron provide fair to good control of crabgrass, 'LUH[/ TWV crowfootgrass and goosegrass. Also provides residual control of certain annual 'LXURQ/ TWV broadleaf weeds. Diuron should be applied immediately after sprigging before 'LXURQ/ TWV weeds emerge. Bermuda sprigs should be planted 2 inches deep to lessen chance 'LXURQ 1.0 - 3.0 lbs. of injury. Emerged bermuda at the time of treatment may be temporarily injured. 'RQRWJUD]HRUIHHGWUHDWHGIROLDJHIRUGD\VDIWHUGLXURQDSSOLFDWLRQ'LXURQLV not labeled in established forage bermudagrass. ' 1.0 - 2.0 $SSO\WRHPHUJHGEURDGOHDIZHHGVLQFKHVWDOO3URYLGHVSRRUSUHHPHUJHQFH (VWHURQ & 1.0 - 2.0 qts. FRQWURORIFUDEJUDVV5HIHUWRVSHFLÀFKHUELFLGHODEHOIRUXVHLQIRUPDWLRQ OEVJDO '/9(VWHU 1.0 - 2.0 qts. '/9(VWHU 1.3 - 3.0 pts. ' Apply 7 to 10 days after sprigging for the postemergence control of seedling to broadleaf and grass weeds. Reduced control will occur if weeds are taller than 1.0 dicamba WRSWV inch, or if weed seed germination occurs 10 or more days after application. Do :HHG0DVWHU QRWJUD]HODFWDWLQJGDLU\DQLPDOVZLWKLQGD\VRIDSSOLFDWLRQ7KHUHLVQRJUD]LQJ OEJDO UHVWULFWLRQDIWHUDQDSSOLFDWLRQDQGQRQODFWDWLQJDQLPDOV'RQRWJUD]HPHDW animals in treated areas within 30 days of slaughter. Do not cut for hay within 37 days of treatment. ESTABLISHED DORMANT BERMUDAGRASS paraquat Apply in 20 to 30 gallons of water in late winter or early spring (probably in )LUHVWRUP OEVJDO 0.7 - 1.3 pts. )HEUXDU\RU0DUFK EHIRUHEHUPXGDJUDVVEHJLQVVSULQJJUHHQXS$GGSW VXUIDFWDQW QRQLRQLF SHUJDOVSUD\PL['RQRWSDVWXUHRUPRZIRUKD\XQWLO *UDPR[RQH,QWHRQ 1.0 - 2.0 pts. GD\VDIWHUWUHDWPHQW 2.0 lbs./gal. glyphosate WRÁR] WR $SSO\LQPLGWRODWHZLQWHUPRQWKVWREHUPXGDJUDVVSDVWXUHVDQGKD\ÀHOGVIRU 5RXQGXS3RZHU0D[ WKHFRQWURORIOLWWOHEDUOH\FKHDWDQGWRVXSSUHVV,WDOLDQ DQQXDO U\HJUDVV$SSO\ 5RXQGXS2ULJLQDO0D[ before new growth appears in the spring. Bermudagrass that is not dormant at the 5RXQGXS:HDWKHU0D[ WLPHRIDSSOLFDWLRQPD\VKRZDVOLJKW WRZHHN GHOD\LQJUHHQXS7KHUHLVQR OEVJDO JUD]LQJRUKD\UHVWULFWLRQIRUDQ\W\SHRIOLYHVWRFN ESTABLISHED FORAGE GRASSES ' 1 qt.-2 qts. 1.0 - 2.0 $SSO\WRZHHGVLQFKHVWDOO8VHORZUDWHVIRUVPDOOZHHGVKLJKUDWHVIRU YDULRXVWUDGHQDPHV larger weeds. Apply low volatile esters from October through March. Apply only OEVJDO non-volatile AMINE or ACID formulations from late March through September. 'RQRWJUD]HODFWDWLQJGDLU\DQLPDOVIRUGD\VDIWHUWUHDWPHQWRUFXWIRUKD\IRU DOOW\SHVRIOLYHVWRFNIRUGD\VDIWHUWUHDWPHQW *UD]LQJDQGKD\LQJUHVWULFWLRQV PD\YDU\UHIHUWRSURGXFWODEHO ,IWKLVWOHVDUHSUHVHQWDSSO\ZKLOHWKH\DUHLQ the rosette stage of growth. ' 1.0 - 2.0 qts. WR +L'HSFRQVLVWVRIGLPHWK\ODPLQHDQGGLHWKDQRODPLQHVDOWVRI'IRUPXODWHG PL[HGDPLQHV +L'HS IRUORZVSUD\YROXPHDSSOLFDWLRQV'2127JUD]HGDLU\FDWWOHIRUGD\VDIWHU OEVJDO application. DO NOT cut for hay for 30 days after applications. dicamba &RQWUROVDZLGHUDQJHRIEURDGOHDIZHHGV7KHUHDUHQRJUD]LQJUHVWULFWLRQVIRU %DQYHO 1-3 pts. DQLPDOVRWKHUWKDQODFWDWLQJGDLU\DQLPDOV5HVWULFWJUD]LQJIRUODFWDWLQJGDLU\ OEVJDO animals as follows: &ODULW\ 1-3 pts. Days Before Grazing Days Before Hay Harvest OEVJDO Up to 1 pint 7 37 8SWROTXDUW 8SWRTXDUWV Remove meat animals from treated areas 30 days prior to slaughter. If thistles are present, apply while they are in the rosette stage of growth. This treatment will severely injure or kill clovers and alfalfa. FDUIHQWUD]RQH &RQWUROVQXPHURXVDQQXDOEURDGOHDIZHHGVOHVVWKDQLQFKHVWDOO&DUIHQWUD]RQH $LP(: WRÁR] WR does not control weedy grasses or sedges. Apply with a nonionic surfactant at 1.9 lbs./gal. YYRUDFURSRLOFRQFHQWUDWHDWYY)RUPRVWZHHGVFDUIHQWUD]RQH $LP(& WRÁR] 0.016 to 0.031 LVWDQNPL[HGZLWKRWKHUUHJLVWHUHGJUDVVSDVWXUHDQGKD\ÀHOGKHUELFLGHV 2.0 lbs./gal. &RPELQLQJFDUIHQWUD]RQHZLWKRWKHUKHUELFLGHVRIWHQLQFUHDVHVRYHUDOOFRQWURO DQGVSHHGRIFRQWURO7KHUHDUHQRJUD]LQJRUKD\LQJUHVWULFWLRQVIRUDQ\W\SHRI OLYHVWRFNIRUFDUIHQWUD]RQH
WEED CONTROL IN GRASS PASTURES AND HAYFIELDS (continued)
BROADCAST RATE/ACRE USE STAGE/ AMOUNT OF POUNDS ACTIVE HERBICIDE FORMULATION INGREDIENT 5(0$5.6$1'35(&$87,216 ESTABLISHED FORAGE GRASSES (continued) ' 2.0 pts. For control of a broad spectrum of weeds, apply in late spring or early summer to to to DQQXDORUSHUHQQLDOEURDGOHDIZHHGVEHIRUHÁRZHULQJ'RQRWJUD]HODFWDWLQJGDLU\ dicamba SWV DQLPDOVZLWKLQGD\V7KHUHLVQRUHVWULFWLRQEHWZHHQDSSOLFDWLRQDQGJUD]LQJ :HHGPDVWHU for non-lactating animals. Do not cut for hay within 37 days after treatment. Do OEVOEJDO QRWJUD]HPHDWDQLPDOVLQWUHDWHGDUHDVZLWKLQGD\VRIVODXJKWHU,IWKLVWOHV are present, apply while they are in the rosette stage of growth. For horsenettle, Outlaw 2.0 pts. use the high rate. Weedmaster and Outlaw will severely injure or kill clovers or OEVJDO to to alfalfa. SWV
' 2.0 pts. Controls annual and perennial broadleaf weeds. Use only in PERMANENT to to *5$663$6785(6$1'+$<),(/'6'SLFORUDPPD\DOVREHDSSOLHG SLFORUDP *UD]RQ3' SWV DWSWVDFUHRUOHVVWRSHUPDQHQWSDVWXUHVWKDWZLOOEHVHHGHGZLWKFRROVHDVRQ *XQ6OLQJHU JUDVVHV U\HJUDVVWDOOIHVFXH 'HOD\SODQWLQJIRUGD\VDIWHUDSSOLFDWLRQ6PDOO +LUHG+DQG grains should not be planted in treated areas for 60 days after application. For OEVOEJDO permanent pastures that have been over seeded wit h small grains or ryegrass, do QRWDSSO\DWUDWHVLQH[FHVVRISWVDFUHDQGXQWLORYHUVHHGHGU\HJUDVVRUVPDOO grains are well-established and at the tillering stage of growth. Clover seeding UHVWULFWLRQVDUHDVIROORZV IDOOVHHGLQJLVSHUPLWWHGLI*UD]RQ3'DWSWVDFUH RUOHVVLVDSSOLHGQRODWHUWKDQ-XQH PRQWKSODQWEDFN 6SULQJ )HE²0DU VHHGLQJLVSHUPLWWHGWKHIROORZLQJVSULQJIRU*UD]RQ3'DWWRSWVDFUHLI DSSOLHGQRODWHUWKDQ6HSWWKHSUHYLRXV\HDU7KH*XQVOLQJHUODEHOLQGLFDWHV that legume establishment may not be successful if done within 12 months of DSSOLFDWLRQ'SLFORUDPPD\EHXVHGDWSWVDFUHDIWHUHVWDEOLVKPHQWRI newly-sprigged bermudagrass once stolons have reached 6 inches in length. This KHUELFLGHLVQRWUHFRPPHQGHGIRUXVHLQURWDWLRQDOV\VWHPVWKDWXWLOL]HEURDGOHDI FURSVRULQWHPSRUDU\VXPPHURUZLQWHUJUD]LQJJUDVVV\VWHPVXQOHVVWHPSRUDU\ JUDVVLVVHHGHGLQWRDSHUPDQHQWSDVWXUH'RQRWJUD]HODFWDWLQJGDLU\DQLPDOVRQ WUHDWHGDUHDVZLWKLQGD\VDIWHUDSSOLFDWLRQ7KHUHDUHQRJUD]LQJUHVWULFWLRQVIRU non-lactating dairy animals, horses, sheep, goats and other types of livestock. Do not harvest grass cut for hay from treated areas for 30 days. Do not use hay from treated areas for composting or mulching of susceptible broadleaf crops. Withdraw meat animals from treated forage at least 3 days before slaughter. Do not transfer OLYHVWRFNIURPWUHDWHGDUHDVRUIURP'SLFORUDPWUHDWHGKD\IHHGLQJDUHDV RQWREURDGOHDIFURSDUHDVZLWKRXWÀUVWDOORZLQJOLYHVWRFNWRJUD]HIRUGD\VRQ DQXQWUHDWHGJUDVVSDVWXUH'RQRWVWRUHRUIHHG'SLFORUDPWUHDWHGKD\RQ ÀHOGVWKDWZLOOEHSODQWHGWREURDGOHDIFURSV'RQRWXVHPDQXUHIURPOLYHVWRFN JUD]LQJRQ'SLFORUDPWUHDWHGDUHDVRQJDUGHQVEURDGOHDIFURSVRU RUFKDUGV'SLFORUDPZLOOLQMXUHRUNLOOOHJXPHVVXFKDVFORYHUVDQGDOIDOID Restricted Use Herbicide.
picloram SWV &RQWUROVDZLGHUDQJHRIKHUEDFHRXVDQGZRRG\EURDGOHDISODQWV8VH ÁXUR[\S\U 6XUPRXQW to to to 2.0 pts./ acre for herbaceous broadleaf weeds. Use 3.0 to 6.0 pts./acre for OEJDO 6.0 pts. woody brush and trees. Use only in PERMANENT GRASS PASTURES AND HAYFIELDS. This herbicide is not recommended for use in rotational systems WKDWXWLOL]HEURDGOHDIFURSVRULQWHPSRUDU\VXPPHURUZLQWHUJUD]LQJJUDVV V\VWHPVXQOHVVWHPSRUDU\JUDVVLVVHHGHGLQWRDSHUPDQHQWSDVWXUH'RQRWJUD]H ODFWDWLQJGDLU\DQLPDOVRQWUHDWHGDUHDVZLWKLQGD\VDIWHUDSSOLFDWLRQ7KHUHDUH QRJUD]LQJUHVWULFWLRQVIRUQRQODFWDWLQJGDLU\DQLPDOVKRUVHVVKHHSJRDWVDQG other types of livestock. Do not harvest grass cut for hay from treated areas for 7 days. Do not use hay from treated areas for composting or mulching of susceptible broadleaf crops. Withdraw meat animals from treated forage at least 3 days before slaughter. Do not transfer livestock from treated areas, or from Surmount treated KD\IHHGLQJDUHDVRQWREURDGOHDIFURSDUHDVZLWKRXWÀUVWDOORZLQJOLYHVWRFNWR JUD]HIRUGD\VRQDQXQWUHDWHGJUDVVSDVWXUH'RQRWVWRUHRUIHHG6XUPRXQW WUHDWHGKD\RQÀHOGVWKDWZLOOEHSODQWHGWREURDGOHDIFURSV'RQRWXVHPDQXUH IURPOLYHVWRFNJUD]LQJRQ6XUPRXQWWUHDWHGDUHDVRQJDUGHQVEURDGOHDIFURSVRU orchards. Surmount will injure or kill legumes such as clovers and alfalfa. New legume plantings may not be successful if seeded within one year of application. Restricted Use Herbicide.
WEED CONTROL IN GRASS PASTURES AND HAYFIELDS (continued)
BROADCAST RATE/ACRE USE STAGE/ AMOUNT OF POUNDS ACTIVE HERBICIDE FORMULATION INGREDIENT 5(0$5.6$1'35(&$87,216 ESTABLISHED FORAGE GRASSES (continued) triclopyr &RQWUROVDZLGHUDQJHRIKHUEDFHRXVDQGZRRG\EURDGOHDISODQWV8VHWR to to pts./ acre for herbaceous broadleaf weeds. Use 2.0 to 8.0 pts./acre for woody ÁXUR[\S\U 3DVWXUH*DUG 8.0 pts. EUXVKDQGWUHHV'RQRWJUD]HODFWDWLQJGDLU\DQLPDOVRQWUHDWHGDUHDVGXULQJWKH OEVJDO VDPHJURZLQJVHDVRQIROORZLQJDSSOLFDWLRQ7KHUHDUHQRJUD]LQJUHVWULFWLRQVIRU non-lactating dairy animals, horses, sheep, goats and other types of livestock. 'RQRWKDUYHVWJUDVVFXWIRUKD\IURPWUHDWHGDUHDVIRUGD\V:LWKGUDZPHDW animals from treated forage at least 3 days before slaughter. Legumes may be planted 30 days after application. Do not reseed forage grasses for 21 days after application. aminopyralid WRÁR]V 0.06 to 0.11 $SSO\WRSHUPDQHQWJUDVVSDVWXUHVDQGKD\ÀHOGV&RQWUROVQXPHURXVDQQXDODQG 0LOHVWRQH perennial broadleaf weeds - particularly effective for the control of horsenettle 2.0 lbs./gal. DQGWURSLFDOVRGDDSSOH7KHUHDUHQRJUD]LQJRUKD\LQJUHVWULFWLRQVIRU0LOHVWRQH for any type of livestock. Do not transfer livestock from treated pastures, or IURP0LOHVWRQHWUHDWHGKD\IHHGLQJDUHDVRQWREURDGOHDIFURSDUHDVZLWKRXWÀUVW DOORZLQJOLYHVWRFNWRJUD]HIRUGD\VRQDQXQWUHDWHGJUDVVSDVWXUH'RQRWVWRUH RUIHHG0LOHVWRQHWUHDWHGKD\RQÀHOGVWKDWZLOOEHSODQWHGWREURDGOHDIFURSV 'RQRWXVHPDQXUHIURPOLYHVWRFNJUD]LQJRQ0LOHVWRQHWUHDWHGDUHDVRQJDUGHQV broadleaf crops or orchards. Milestone will injure or kill legumes such as clovers DQGDOIDOID'RQRWSODQWOHJXPHVRUEURDGOHDIFURSVXQWLODÀHOGELRDVVD\KDV shown that the aminopyralid concentration in the soil is not at a level that will LQMXUHEURDGOHDIFURSV VHHODEHOIRULQVWUXFWLRQVRQFRQGXFWLQJÀHOGELRDVVD\ aminopyralid $SSO\WRSHUPDQHQWJUDVVSDVWXUHVDQGKD\ÀHOGV&RQWUROVQXPHURXVDQQXDODQG perennial broadleaf weeds - particularly effective for the control of horsenettle and ' )RUH)URQW WRSWV to tropical soda apple. Controls a wider spectrum of weed species than Milestone. *UD]RQ1H[W 7KHUHDUHQRJUD]LQJUHVWULFWLRQVIRU)RUH)URQWDQG*UD]RQ1H[WIRUDQ\W\SH OEVJDO of livestock. Do not harvest for hay within 7 days of application (all types of OLYHVWRFN 'RQRWWUDQVIHUOLYHVWRFNIURPWUHDWHGSDVWXUHVRUIURP)RUH)URQWRU *UD]RQ1H[WWUHDWHGKD\IHHGLQJDUHDVRQWREURDGOHDIFURSDUHDVZLWKRXWÀUVW DOORZLQJOLYHVWRFNWRJUD]HIRUGD\VRQDQXQWUHDWHGJUDVVSDVWXUH'RQRW VWRUHRUIHHG)RUH)URQWRU*UD]RQ1H[WWUHDWHGKD\RQÀHOGVWKDWZLOOEHSODQWHG WREURDGOHDIFURSV'RQRWXVHPDQXUHIURPOLYHVWRFNJUD]LQJRQ)RUH)URQWRU *UD]RQ1H[WWUHDWHGDUHDVRQJDUGHQVEURDGOHDIFURSVRURUFKDUGV)RUH)URQWDQG *UD]RQ1H[WZLOOLQMXUHRUNLOOOHJXPHVVXFKDVFORYHUVDQGDOIDOID'RQRWSODQW OHJXPHVRUEURDGOHDIFURSVXQWLODÀHOGELRDVVD\KDVVKRZQWKDWWKHDPLQRS\UDOLG concentration in the soil is not at a level that will injure broadleaf crops (see label IRULQVWUXFWLRQVRQFRQGXFWLQJÀHOG aminopyralid $SSO\WRSHUPDQHQWJUDVVSDVWXUHVDQGKD\ÀHOGV%HUPXGDJUDVVVKRXOGEH to established for 60 days and tall fescue for two years prior to use. Apply with metsulfuron YYQRQLRQLFVXUIDFWDQWSHUJDORIVSUD\PL[&RQWUROVQXPHURXV annual and perennial broadleaf weeds - particularly effective for the control &KDSDUUDO') WRR]V of horsenettle and tropical soda apple. Also, controls ‘Pensacola’ bahiagrass. &RQWUROVDZLGHUVSHFWUXPRIZHHGVSHFLHVWKDQ0LOHVWRQH7KHUHDUHQRJUD]LQJ OEOE or haying restrict ions for Chaparral for any type of livestock. Do not transfer livestock from treated pastures, or from Chaparral treated hay feeding areas RQWREURDGOHDIFURSDUHDVZLWKRXWÀUVWDOORZLQJOLYHVWRFNWRJUD]HIRUGD\V on an untreated grass pasture. Do not store or feed Chaparral treated hay on ÀHOGVWKDWZLOOEHSODQWHGWREURDGOHDIFURSV'RQRWXVHPDQXUHIURPOLYHVWRFN JUD]LQJRQ&KDSDUUDOWUHDWHGDUHDVRQJDUGHQVEURDGOHDIFURSVRURUFKDUGV Chaparral will injure or kill legumes such as clovers and alfalfa. Do not plant OHJXPHVRUEURDGOHDIFURSVXQWLODÀHOGELRDVVD\KDVVKRZQWKDWWKHDPLQRS\UDOLG concentration in the soil is not at not at a level that will injure broadleaf crops (see ODEHOIRULQVWUXFWLRQVRQFRQGXFWLQJÀHOGELRDVVD\ 2QWDOOIHVFXHDSSOLFDWLRQV in the early spring may suppress seedhead production and reduce h ay yield. To PLQLPL]HLQMXU\WRWDOOIHVFXH D WDQNPL['E XVHWKHORZHVWUHFRPPHQGHG UDWHIRUWKHWDUJHWZHHGVF XVHDWRYYVXUIDFWDQWFRQFHQWUDWLRQG PDNHDSSOLFDWLRQVLQWKHODWHVSULQJRUIDOOPRQWKVDIWHUWRLQFKHVRIQHZ JURZWKKDVRFFXUUHGDQGH GRQRWDGGDVXUIDFWDQWZKHQDSSOLHGZLWKOLTXLG1
WEED CONTROL IN GRASS PASTURES AND HAYFIELDS (continued)
BROADCAST RATE/ACRE USE STAGE/ AMOUNT OF POUNDS ACTIVE HERBICIDE FORMULATION INGREDIENT 5(0$5.6$1'35(&$87,216 ESTABLISHED FORAGE GRASSES (continued) ' Apply to established grass pastures for control of broadleaf weeds and woody plants. Woody plant control requires 6 qts./A. or higher rate. Desirable forage triclopyr broadleaf plants such as clover or alfalfa may be killed if sprayed. *UD]LQJDQG &URVVERZ 1 to 6 qts haying restrictions: Grazing or harvesting of green forage: (1) Lactating OEVOEJDO dairy animals7ZRJDOORQVDFUHRUOHVV 'RQRWJUD]HRUKDUYHVWJUHHQIRUDJH IURPWUHDWHGDUHDIRUGD\VDIWHUWUHDWPHQW*UHDWHUWKDQJDOORQVWRJDOORQV DFUH 'RQRWJUD]HRUKDUYHVWJUHHQIRUDJHXQWLOQH[WJURZLQJVHDVRQ 2WKHU OLYHVWRFN7ZRJDOORQVDFUHRUOHVV 1RJUD]LQJUHVWULFWLRQV*UHDWHUWKDQJDOORQV WRJDOORQVDFUH 'RQRWJUD]HRUKDUYHVWJUHHQIRUDJHIURPWUHDWHGDUHDVIRU GD\VDIWHUWUHDWPHQW1RWH ,IOHVVWKDQRIDJUD]HGDUHDLVWUHDWHGWKHUHLVQR JUD]LQJUHVWULFWLRQHaying (harvesting of dried forage): (1) Lactating dairy animals: Do not harvest hay until next growing season. (2) Other livestock: Two gallons/acre or less: Do not harvest hay for 7 days after treatment. Greater than 2 JDOORQVWRJDOORQVDFUH 'RQRWKDUYHVWKD\IRUGD\VDIWHUWUHDWPHQW triclopyr 0.38 to 1.12 $SSO\IRUFRQWURORIEURDGOHDIZHHGV8VHWRSWVDFUHWRFRQWUROGRJIHQQHO spiny amaranth and horsenettle. Desirable forage broadleaf plants such as clover clopyralid WRSWV WR or alfalfa may be killed if sprayed. Do not apply to newly-seeded or sprigged 5HGHHP grasses until they are well established as evidenced by tillering, development of OEVOEJDO a secondary root system and vigorous growth. *UD]LQJDQGKD\LQJUHVWULFWLRQV Grazing or harvesting of green forage: (1) Lactating dairy animals - Do not JUD]HRUKDUYHVWJUHHQIRUDJHIURPWUHDWHGDUHDIRUGD\VDIWHUWUHDWPHQW (2) Other livestock1RJUD]LQJUHVWULFWLRQVHaying (harvesting of dried forage): (1) Lactating dairy animals: Do not harvest hay until next growing season. (2) Other livestock: Do not harvest hay for 7 days after treatment. LPD]DSLF Apply to established bermudagrass. Do not apply to other forage grass species. ,PSRVH ÁR]V Provides postemergence control of crabgrass, sandbur, broadleaf signalgrass, 3DQRUDPLF johnsongrass, vaseygrass, nutsedge and certain other weeds. This herbicide does 2.0 lbs./gal not control pricklypear cactus, dallisgrass and goosegrass. Apply in late spring to PLGVXPPHUDIWHUEHUPXGDJUDVVKDVUHDFKHGJUHHQXSJURZWKVWDJH'R QRWDSSO\GXULQJVSULQJWUDQVLWLRQRUWRGRUPDQWEHUPXGDJUDVV,PD]DSLFLVQRW recommended on newly-sprigged or seedling bermudagrass during the grow-in SHULRG5HVHDUFKKDVVKRZQWKDWLPD]DSLFZLOOPRGHUDWHO\LQMXUH \HOORZLQJRI EHUPXGDJUDVVIROLDJH DQGVXSSUHVVEHUPXGDJUDVVJURZWKIRUDSSUR[LPDWHO\ WRGD\VDIWHUDSSOLFDWLRQ$GGLWLRQDOO\EHUPXGDJUDVVKD\\LHOGVPD\ EHUHGXFHGWRDWWKHÀUVWKD\KDUYHVW XVXDOO\GD\V IROORZLQJ DSSOLFDWLRQ,PD]DSLFVKRXOGQRWEHDSSOLHGXQOHVVDEHUPXGDJUDVV\LHOGUHGXFWLRQ is acceptable. No bermudagrass hay yield reduction has been observed at the QGUGDQGWKKD\KDUYHVWIROORZLQJDQDSSOLFDWLRQDWÁR]VDFUH$GGD QRQLRQLFVXUIDFWDQW SUHIHUUHG DWYYRUPHWK\ODWHGVHHGRLODWWR SWVDFUHWRWKHVSUD\PL[7KHXVHRIWRSWVDFUHRI11 or ammonium sulfate in combination with the recommended rate of surfactant PD\LQFUHDVHFRQWURO/LTXLGIHUWLOL]HUPD\EHXVHGDVWKHVROHVSUD\FDUULHUIRU LPD]DSLFEXWFRQWUROPD\EHUHGXFHG'RQRWDGGDVXUIDFWDQWRUPHWK\ODWHGVHHG RLOLIOLTXLGIHUWLOL]HULVXVHGDVWKHVROHVSUD\FDUULHU$QQXDOU\HJUDVVPD\EH VHHGHGGD\VDIWHUDSSOLFDWLRQ7KHUHLVQRJUD]LQJUHVWULFWLRQIRULPD]DSLFDQ\ type of livestock. Do not cut for hay for 7 days after application. sulfosulfuron R]V 0.062 Recommended for the control of emerged johnsongrass and sedge species in 2XW5LGHU bermudagrass and bahiagrass forage systems. DO NOT use OutRider on other ') forage grass species such as tall fescue. OutRider does not control annual grasses such as crabgrass and sandbur, or perennial grasses such as dallisgrass and vaseygrass. Apply to johnsongrass a minimum of 18 in. tall up to the heading VWDJH$SSO\WRVHGJHVWRLQFKHVWDOO$GGDQRQLRQLFVXUIDFWDQWDW YY2XW5LGHUPD\EHWDQNPL[HGZLWKRWKHUSDVWXUHKHUELFLGHV KRZHYHUDPLQH IRUPXODWLRQVPD\UHGXFHMRKQVRQJUDVVFRQWURO*UD]LQJPD\RFFXULPPHGLDWHO\ EHIRUHRUDIWHUDSSOLFDWLRQ KRZHYHUFRQWUROPD\EHUHGXFHGE\JUD]LQJRI MRKQVRQJUDVVIROLDJH)RUEHVWUHVXOWVGRQRWJUD]HRUPRZIRUWZRZHHNVEHIRUH or after application.
WEED CONTROL IN GRASS PASTURES AND HAYFIELDS (continued)
BROADCAST RATE/ACRE USE STAGE/ AMOUNT OF POUNDS ACTIVE HERBICIDE FORMULATION INGREDIENT 5(0$5.6$1'35(&$87,216 ESTABLISHED FORAGE GRASSES (continued) pendimethalin WRTWV WR Provides good preemergence control of summer annual grasses such as crabgrass
(Prowl H22 and sandbur and some annual broadleaf weeds. Prowl H2O is labeled only for 3.8 lbs./gal. established dormant bermudagrass. Applications to newly-sprigged bermudagrass, tall fescue, bahiagrass and other perennial forage grasses are not recommended.
Apply Prowl H2O to established bermudagrass in winter dormancy in the late winter and early spring. In most areas of Georgia, this would be February through early March. Crabgrass begins to germinate when soil temperatures average
)3URZO+2O must be applied before crabgrass or other annual grasses JHUPLQDWH5HVHDUFKFRQGXFWHGLQ*HRUJLDKDVVKRZQWKDWXVXDOO\WR OEVDLDFUH WRTXDUWVSHUDFUH LVQHHGHGIRUVHDVRQORQJDQQXDOJUDVV
control. Prowl H2O may be tank-mixed with other herbicides registered for use on
forage bermudagrass. Prowl H22VKRXOGQRWEHDSSOLHGOHVVWKDQGD\VSULRUWR
EHUPXGDJUDVVKD\KDUYHVW'RQRWJUD]H3URZO+2O treated bermudagrass until 60 days after application. KH[D]LQRQH Controls smutgrass in established bermudagrass and bahiagrass pastures and 9HOSDU ') OEV 0.67 - 1.12 KD\ÀHOGV8VHORZUDWHRQFRDUVHVDQG\VRLOVDQGKLJKUDWHRQÀQHWH[WXUHGVRLOV 9HOSDU / SWV 0.67 - 1.12 Not recommended for use on tall fescue. Make only one application per year with JURXQGHTXLSPHQWDWDPLQLPXPVSUD\YROXPHRIJSD0DNHDSSOLFDWLRQLQ April to late July time frame, when soil moisture is good, humidity is high and ZKHQDLUWHPSHUDWXUHVDUHDERYH)%HVWUHVXOWVRFFXUZKHQRQHKDOILQFK RIUDLQIDOORFFXUVZLWKLQWZRZHHNVRIDSSOLFDWLRQ+H[D]LQRQHZLOOPRGHUDWHO\ WRVHYHUHO\LQMXUHEHUPXGDJUDVVDQGPD\HOLPLQDWHWKHÀUVWFXWWLQJRIKD\ Bahiagrass and bermudagrass will recover from temporary burn and yellowing within two to four weeks of application. Use only on bermudagrass and bahiagrass that has been established one year or more. DO NOTDSSO\KH[D]LQRQHQHDU oak trees. DO NOTJUD]HRUIHHGWUHDWHGIRUDJHRUKD\ZLWKLQGD\VDIWHU application. triclopyr Apply to established grass pastures for control of broadleaf weeds and brush. 5HPHG\ 7ULFORS\UPD\EHWDQNPL[HGZLWK'IRUEURDGHUVSHFWUXPZHHGFRQWURODQG OEVJDO 1.0 - 2.0 pts. control of sensitive woody species. Desirable forage broadleaf plants such as FORYHURUDOIDOIDPD\EHNLOOHGLIVSUD\HG$SSOLFDWLRQVDWDLUWHPSHUDWXUHV! F. may cause moderate to severe bermudagrass injury for two to three weeks. *UD]LQJUHVWULFWLRQV Grazing or harvesting green forage: (1) Lactating dairy animals:7ZRTXDUWVDFUHRUOHVV GRQRWJUD]HRUKDUYHVWJUHHQIRUDJHIURP WUHDWHGDUHDIRUGD\VDIWHUWUHDWPHQW(2) Other livestock: Two quarts/acre or OHVV QRJUD]LQJUHVWULFWLRQVHaying restriction): (1) Lactating dairy animals: Do not harvest hay until the next growing season. (2) Other livestock: Two quarts /acre or less: Do not harvest hay for 7 days after treatment. Slaughter Restrictions::LWKGUDZOLYHVWRFNIURPJUD]LQJWUHDWHGJUDVVRUFRQVXPSWLRQRI treated hay at least 3 days before slaughter. glyphosate $SSO\DIWHUWKHÀUVWEHUPXGDJUDVVFXWWLQJZKHQEHUPXGDJUDVVKDVQRW\HWLQLWLDWHG 5RXQGXS3RZHU0D[ ÁR] UHJURZWK&RQWUROVFUDEJUDVVÀHOGVDQGEXUVHHGOLQJMRKQVRQJUDVVDQGPRVW OEVJDO annual grasses. Applications made after regrowth has begun will damage bermuda VXSSOHPHQWDOODEHO JUDVV'2127JUD]HRUFXWIRUKD\IRUGD\VDIWHUDSSOLFDWLRQ0DNHRQO\RQH DSSOLFDWLRQSHU\HDU'2127PDNHDQDSSOLFDWLRQDIWHUWKHÀUVWFXWWLQJLIWKH ÀHOGKDVSUHYLRXVO\UHFHLYHGDJO\SKRVDWHDSSOLFDWLRQGXULQJWKHZLQWHUPRQWKV
GLÁXIHQ]RS\U R]V Controls annual and perennial broadleaf weeds. Add a nonionic surfactant at to to YYRUPHWK\ODWHGVHHGRLODWSWVDFUHWRWKHVSUD\PL['LÁXIHQ]RS\U dicamba R]V has been shown t o improve t he activity of “auxin-like” herbicides such as 2YHUGULYH ') WULFORS\UFORS\UDOLGDQGSLFORUDP0D\EHWDQNPL[HGZLWK*UD]RQ3'5HPHG\ OEVOEVJDO 5HGHHP'DQG&LPDUURQWRLQFUHDVHVSHFWUXPRIZHHGVSHFLHVFRQWUROOHG 2YHUGULYHLVUDLQIDVWZLWKLQKRXUVDIWHUDSSOLFDWLRQ'2127SODQWDQ\ URWDWLRQDOFURSZLWKLQGD\VRIDQ2YHUGULYHDSSOLFDWLRQ7KHUHDUHQRJUD]LQJ or haying restrictions for Overdrive for any type of livestock.
WEED CONTROL IN GRASS PASTURES AND HAYFIELDS (continued)
BROADCAST RATE/ACRE USE STAGE/ AMOUNT OF POUNDS ACTIVE HERBICIDE FORMULATION INGREDIENT 5(0$5.6$1'35(&$87,216 ESTABLISHED FORAGE GRASSES (continued) metsulfuron Apply to established bermudagrass for the control of ‘Pensacola’ 0HWVXOIXURQ (* ²R] bahiagrass and certain broadleaf weeds. Bermudagrass should be 3DWULRW ') established for 60 days and tall fescue for two years prior to use. Apply 1 pt.-1 qt. nonionic surfactant per 100 gal. of spray mix. On tall fescue, applications in the early spring may suppress seedhead production and UHGXFHKD\\LHOG7RPLQLPL]HLQMXU\WRWDOOIHVFXH D WDQNPL[' ZLWKPHWVXOIXURQE XVHWKHORZHVWUHFRPPHQGHGUDWHIRUWKHWDUJHW ZHHGVF XVHDWRYYVXUIDFWDQWFRQFHQWUDWLRQG PDNH DSSOLFDWLRQVLQWKHODWHVSULQJRUIDOOPRQWKVH GRQRWH[FHHGR] SURGXFWDFUHDQGI GRQRWDGGDVXUIDFWDQWZKHQDSSOLHGZLWKOLTXLG1 0HWVXOIXURQWDQNPL[HVZLWKOLTXLGIHUWLOL]HUDUHQRWUHFRPPHQGHGIRU ‘Pensacola’ bahiagrass control. Not effective for the control of ‘Common’ DQG¶$UJHQWLQH·EDKLDJUDVV6SRWWUHDWPHQWVRIPHWVXOIXURQDWR] SURGXFWSHUJDORIZDWHUPD\EHXVHGIRUWKHFRQWURORIPXOWLÁRUD rose an d blackberry. Pasture legumes will be severely injured or killed E\PHWVXOIXURQ7KHUHLVQRJUD]LQJRUKD\LQJUHVWULFWLRQIRUPHWVXOIXURQ 0HWVXOIXURQPD\EHWDQNPL[HGZLWK*UD]RQ3'%DQYHO' Weedmaster, Milestone, ForeFront and Remedy or purchased as a co-pack SURGXFWZLWK'GLFDPED PHWVXOIXURQ R]V Apply to established bermudagrass for the control of ‘Pensacola’ bahiagrass and certain broadleaf weeds. Bermudagrass should be FKORUVXOIXURQ 0.001 - 0.01 established for 60 days and tall fescue for two years prior to use. Apply &LPDUURQ3OXV ') 1 pt.-1 qt. nonionic surfactant per 100 gal. of spray mix. On tall fescue, applications in the early spring may suppress seedhead production and UHGXFHKD\\LHOG7RPLQLPL]HLQMXU\WRWDOOIHVFXH D GRQRWXVHPRUH WKDQR]SURGXFWDFUHE XVHWKHORZHVWUHFRPPHQGHGUDWHIRUWKH WDUJHWZHHGVF XVHDWRYYVXUIDFWDQWFRQFHQWUDWLRQG PDNH DSSOLFDWLRQVLQWKHODWHVSULQJRUIDOOPRQWKVH GRQRWH[FHHGR] SURGXFWDFUHDQGI GRQRWDGGDVXUIDFWDQWZKHQDSSOLHGZLWKOLTXLG1 &LPDUURQ3OXVWDQNPL[HVZLWKOLTXLGIHUWLOL]HUDUHQRWUHFRPPHQGHGIRU ‘Pensacola’ bahiagrass control. Not effective for the control of ‘Common’ and ‘Argentine’ bahiagrass. Pasture legumes will be severely injured or NLOOHGE\&LPDUURQ3OXV7KHUHLVQRJUD]LQJRUKD\LQJUHVWULFWLRQIRU &LPDUURQ3OXV&LPDUURQ3OXVPD\EHWDQNPL[HGZLWK*UD]RQ3' %DQYHO':HHGPDVWHUDQG5HPHG\ PHWVXOIXURQ ') R] 0.009 &LPDUURQ0D[LVDSDUW FRSDFN SURGXFWXVHGIRUDQQXDODQG perennial broadleaf weed control in bermudagrass pastures. Also controls 'GLFDPED 1.0 pt. ‘Pensacola’ bahiagrass. Bermudagrass should be established for 60 days OEVJDO and tall fescue for two years prior to use. Apply 1 pt.-1 qt. nonionic &LPDUURQ0D[ surfactant per 100 gal. of spray mix. On tall fescue only, applications in the early spring may suppress seedhead production and reduce hay yield. 7RPLQLPL]HLQMXU\WRWDOOIHVFXH D XVHWKHORZHVWUHFRPPHQGHGUDWH IRUWKHWDUJHWZHHGVE XVHDWRYYVXUIDFWDQWFRQFHQWUDWLRQ F PDNHDSSOLFDWLRQVLQWKHODWHVSULQJRUIDOOPRQWKVDQGG GRQRWDGG a surfactant when applied with liquid N. Cimarron Max tank-mixes with OLTXLGIHUWLOL]HUDUHQRWUHFRPPHQGHGIRU¶3HQVDFROD·EDKLDJUDVVFRQWURO Not effective for the control of ‘Common’ and ‘Argentine’ bahiagrass. Pasture legumes will be severely injured or killed by Cimarron Max. There LVQRJUD]LQJUHVWULFWLRQIRUQRQODFWDWLQJDQLPDOVIRU&LPDUURQ0D[7KH JUD]LQJUHVWULFWLRQIRUODFWDWLQJGDLU\DQLPDOVLVGD\V'RQRWKDUYHVWIRU hay for 37 days after treatment. Remove meat animals from treated areas 30 days prior to slaughter. Chlorsulfuron Controls many broadleaf weeds such as blackberry, pigweeds, and wild 7HODU ') WRR] WR radish. Not effective for the control of horsenettle and common ragweed. 0D\EHXVHGDWUDWHVXSWRR]DFUHLQWDOOIHVFXH,QEHUPXGDJUDVV DQGEDKLDJUDVVUDWHVDVKLJKDVR]DFUHPD\EHXVHG$GGDQRQLRQLF VXUIDFWDQWDWYYWRWKHVSUD\PL[&KORUVXOIXURQKDVQRJUD]LQJRU haying restriction for any type of livestock.
WEED CONTROL IN GRASS PASTURES AND HAYFIELDS (continued)
BROADCAST RATE/ACRE USE STAGE/ AMOUNT OF POUNDS ACTIVE HERBICIDE FORMULATION INGREDIENT 5(0$5.6$1'35(&$87,216 ESTABLISHED FORAGE GRASSES (continued) 1LFRVXOIXURQ WR Pastora is recommended only for use on bermudagrass that has been established IRURQH\HDU3DVWRUDFDQWHPSRUDULO\LQMXUH \HOORZLQJVWXQWLQJ EHUPXGDJUDVV 0HWVXOIXURQ WR Injury can be decreased by using Pastora during bermudagrass winter dormancy, 3DVWRUD :'* WRR]V during green-up with less than 2 inches of new growth and within 7 days after cutting for hay. Applications at other times may reduce bermudagrass production. Pastora is not recommended for use during bermudagrass “grow-in” from sprigs or seed. Applications to tall fescue, bahiagrass, overseeded winter annual forage grasses and other perennial forage grasses are not labeled. This herbicide has shown good to excellent control of sandbur, Texas panicum, fall panicum, broadleaf signalgrass and barnyardgrass less than 2 inches tall. Correct application timing is critical for control of annual grasses. Pastora has also shown excellent activity on Italian ryegrass, johnsongrass and ‘Pensacola’ bahiagrass when treated DVSHUODEHOGLUHFWLRQV3DVWRUDDWR]DFUHDSSOLHGWZLFHDOVRKDVJRRGDFWLYLW\ RQYDVH\JUDVV VHHVXSSOHPHQWDOODEHO %URDGOHDIZHHGVFRQWUROOHGE\3DVWRUD LQFOXGHELWWHUVQHH]HZHHGEXWWHUFXSFKLFNZHHGVS&DUROLQDJHUDQLXPFXUO\ dock, dogfennel, henbit, horseweed, musk thistle, smartweed sp., and wild garlic. $QRQLRQLFVXUIDFWDQWDWYYLVWKHSUHIHUUHGDGMXYDQWIRU3DVWRUD7KLV KHUELFLGHKDVQRJUD]LQJRUKD\LQJUHVWULFWLRQIRUDQ\W\SHRIOLYHVWRFN POSTEMERGENCE - Spot or Wiper Applications glyphosate Rate varies Rate varies Glyphosate may be applied in wiper applicators to weeds emerged above the 5RXQGXS:HDWKHU0D[ with species with species forage grass, or applied as a spot treatment. Further applications may be made OEVJDO and application and application in the same area at 30-day intervals. Forage grasses, alfalfa, or clover coming in 5RXQGXS2ULJLQDO contact with the glyphosate will be injured or killed. Remove domestic livestock OEVJDO EHIRUHDSSOLFDWLRQDQGZDLWGD\VDIWHUDSSOLFDWLRQEHIRUHJUD]LQJOLYHVWRFNRU harvesting. Other brands of glyphosate may also be labeled for this use. tebuthiuron Spike 20P pellets may be applied as a spot treatment in perennial summer grass 6SLNH3 See label. SDVWXUHVIRUFRQWURORILQGLYLGXDOWUHHVRUVFDWWHUHGVWDQGVRIEUXVK$SSO\ SHOOHW ounce per 100 square feet of soil surface over the root systems of clump s of brush. Apply in early spring. Stands of cool season grasses such as fescue may be reduced by Spike application. Applications to or near pine trees will cause injury RUGHDWKRIWKHWUHH'RQRWFXWIRUKD\IRURQH\HDUDIWHUDSSOLFDWLRQ*UD]LQJLV allowed after application if 20 pounds per acre or less is used. MIXTURES - Grass-Lespedeza, Grass-Clover 'DPLQH $SSO\RQO\RQHWUHDWPHQWSHU\HDUWRSHUHQQLDOFORYHUV'DPLQHZLOOFDXVH OEVJDO SW VOLJKWWRPRGHUDWHLQMXU\WROHJXPHV5HIHUWRVSHFLÀFKHUELFLGHODEHOIRUXVH information. CONVERSION TO FUNGUS-FREE FESCUE paraquat Apply paraquat in the fall to actively-growing, endophyte-infected fescue 2 to 3 )LUHVWRUP OEVJDO 0.7 - 1.3 pts. weeks prior to planting endophyte-free fescue. Apply paraquat again at planting. $SSO\LQWRJDORIZDWHUSHUDFUH$OZD\VDGGVXUIDFWDQWZKHQXVLQJ *UDPR[RQH,QWHRQ 1.0 - 2.0 pts. SDUDTXDW'2127JUD]HWKHQHZSODQWLQJIRUGD\VRUXQWLOWKHQHZJURZWKLV 2.0 lbs./gal. 6 inches tall. glyphosate See remarks. See remarks. $SSO\LQWKHIDOODWÁR]V$WRHQGRSK\WHLQIHFWHGIHVFXHZHHNVSULRUWR 5RXQGXS:HDWKHU0D[ planting endophyte-free fescue. Tall fescue should have 6 to 12 inches of new 5RXQGXS2ULJLQDO0D[ JURZWKEHIRUHWKHÀUVWDSSOLFDWLRQ$SSO\DJDLQDWSODQWLQJDWÁR]V$7KLV 5RXQGXS3RZHU0D[ treatment provides some suppression of common bermudagrass also. There is no OEVJDO ZDLWLQJSHULRGEHWZHHQDSSOLFDWLRQDQGJUD]LQJLIWRWDODSSOLFDWLRQUDWHLVOHVVWKDQ 2.0 qt/acre. Other brands of glyphosate may also be labeled for this use.