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HERBICIDE FACT SHEETS
Prepared by
C.L. Elmore, W.B. McHenry, H. Agamalian, W.A. Harvey and A.H. Lange University of California, Agricultural Extension Service
Fbr use as a ha~ fact sheet on herbicides. Labels and technical data sheets should be consulted for each herbicide if more in:formation is required.
NOTE: Phytotoxic soil life as indicated is derived from irrigated cropland.
Revised: 1/72
Triazines
General characteristics: Long residual (3-18 months), relatively insoluble in water, low volatility, soil-applied
weak on some grass species, tolerance of many plants due to placement. Sorghum and some other monocotyledon
generas degrades some enzymatically. Symptoms from soil applications o~en interveinal.
BASIC STRUCTURE I (EXAtMPLESl ) I TRADE NAMES wa er _so •
r~ R-N-tJN-R
,ametryne (185 ppm)
atrazine (70 ppm)
ps-14254 (620 ppm)
prometone (750 ppm)
prometryne
(48 ppm)
propazine (8.6 ppm)
SD-15418 (l.60 ppm}
simazine (5 ppm)
Evik®
Aatrex®
Sumitol®
Pramitol®
Caparol®
Milogara.®
Blad ex®
Princep®
USES PERFORANCE
Potato dessicantlFlorida registration only.
corn, milo,noncrop sites, Christmas trees
Experimental, promising in alfalfa
Non-crop, limited use.
Applied with non-phytotoxic oil to mile and corn for barnyardgrass and pigweed control. Relatively longli ved in soil.
RESISTANT SPECIES
~trazine: turkey mullein, lantains, annual panicum rasses
Prometone: ryegrass, turkey ~ullein
cotton, celery Limited to transplant celeIJ; Orasses controls cheeseweed, grounds el.
grain sorghum
corn, grain I Short-lived in soils. sorghum .
corn, apples, !Essentially no pastemergent citrus, pears, activity at low rates. plums, cherries, I Re la ti vely long-lived in walnuts, . soil.
. asparagus, artichpkes, · I Christmas trees,prnamentals.
Simazine: turkey mullein, !plantain, filaree, cheeseweed 'crabgrass, barnyardgrass, and .annual panicum grasses •
BASIC STRUCTUBE EXAMPLES TRADE NAMES USES PERFORMANCE RESISTANT SPECIES water sol.)
terbutryn Igran® winter ·wheat Relatively short-lived in (58 ppm) (Pacific soil, some post activity.
Northwest) ..
BAY 94337 Sencor® Potato,tomato Preemergence and early post- Weak on most grasses. (1200 ppm) emergence.
cypazine Outfox® corn Relatively long-lived in (insol.) soil, post activity.
Substituted ureas
General characteristics: Long residual (3-18 months) relatively insoluble in water, low volatility, tolerance of
many plants due to placement, soil-applied, symptoms from soil applications often veinal chlorosis.
f BASIC STRUCTURE! (~~~~l. ) l TRADE NAMES
0
" R -N-C-N-R 2 2
chlorm:uron (3.7 ppm)
diuron (42 ppm)
fenuron (3850 ppm)
fluometuron (90 p)?lll)
linuron (75 p:pm)
Tenoran®
Ka.rm.ex®
IDybar <K
lcotoran ®
l1orox ®
metobromuron r Patoran ®
(320 ppm)
monuron ITelvar ® (230 ppm)
USES
annual weeds in strawberries, onions, carrots
PERFORMANCE
soil residual life from 3-6 months, not effective in high O.M. soils. Effective on seedling weeds.
cotton,walnuts,l Some postemergence activity pears,vines, with surfactant on seedling apples, asparag s weeds. noncrop areas.
brush control.
cotton
pre-or early postemergent
preemergence in
cotton, noncrop area,dichondra, asparagus
Effective in mineral soils.
foliage active. Relatively short-lived in soil.
Soil persistence 6 to 8 months.
leaches faster than most ureas.
RESISTAl\.TT SPECIES
Sowthistle
Diuron and monuron: common groundsel,wild oats, (diuron), turkey mullein, plantains, spurge.
Linuron: carrot fardlr, Russic.n t11istle, S".lF:e
a,mucl 1_;ra3ses.
QU.Ut>ltl..LVU.VC\.L U.J.~QtWt \,_v.1..a.u.,,_..1..a.lo4.'--'"'4 I
BASIC STRUCTURE EXAMPLES TRADE HAMES USES PERFORMANCE RESISTANT SPECIES
(water sol. )
neburon Bonus for dichondra solubility low, leaches (4.8 ppm) Dichond.ra ® slowly.
norea Herban ® cotton, spinach spinach preemergence-sprinkl.E r Norea: grasses, pigweed, (150 ppm} irrigation, short-lived malva
soil residual.
siduron Tupersan ® Pre-or post- has not controlled crabgrass Siduron: cool season (18 ppm) plant 1 preemerge teffectively in California. grasses (annual bluegrass,
control in turf ryegrass,fescue,bluegrass) grass
Uracils
General characteristics: Long residual (to 24 months), relatively insoluble in water, low volatility. Tolerance of many plants di;e to placement, soil-applied, symptoms from soil applications of veinal or blotchy leaf chlorosis.
BASIC STRUCTURE EY.All'D?LES TRADE NAMES USES FERFORMA..NCE RESIST.ANT SPECIES (water sol. )
H 'bromacil Hyvar-X® I pre-and early Soil-applied. With early Bromacil: common mullein
r; 0 (815 ppm) combined with postemergent postemergent activity. Long to 6 to 8 lb. ai./A. R,,,,, '1'
~\r-R diuron annual weed and soil residual except under (Krovar®) bermudagrass excessive surface uater. R/
control in citrus and non-crop.
terbacil Sinbar® terbacil used in Postemergence activity on Labiates, some annual grasses (740 ppm) apples,citrus, seedling weeds. cat's ear, and false salsify.
, peaches, and almonds.
Carbamates
General characteristics: Short soil residue, need incorporation, volatile, relatively insoluble in water,
excellent grass control, symptoms normally twisting or stunting of seedlings, strapped leaves of some
broadleaf plants.
EXAMPLES BASIC STRUCTURE J {water sol.) TRADE NAMES USES PERFORMANCE I RESISTANT SPECIES
0 propham IPC ® lettuce,winter mechanical incorporation or I composites, shepherd 1 spurse,
R I (280 ppm) annual grass sprinkler irrigation must lambsquarters. \ II control follow application. ll-C-0-R
I R I chlorpropham CIPC @; lalfalfa,ladino, I short soil life,dodder i· Many compssites
(88 ppm) garlic control.
barb an Carbyne ® postemergenc I specific for wild oats. (11 ppm) wild oat contro
Phenylcarbamate in cereals
cycloate Ro-Neet® sugar beets Incorporate. shepherd'spurse,groundsel.
R 0 I (85 ppm)
\ II n-c-s-R JEPrC lEptam® lpreemergent short-lived. Most effective I Legumes, mal va, groundsel ,
(375 ppm) annual weed applied on dry soil. puncturevine. R control in Incorporate immediately.
butylate ISutan®
reans,alfalfa
corn I short soil life ! hairy nightshade
(45 ppm)
diallate Avadex® preemergent wild I most broadleaves
(14 ppm) oat control in
Thiocarbamates . cereals
Carbamates (continued)
BASIC STRUCTURE EXAMPLES ~ol~J J ~RA~~s I USES I _PERFORMANCE I RESISTANT SPECIES
Tb.iocarbamates
s ~N~c-s-R R/
Dithiocarbamates
briallate (4 ppm)
1Pebulate (~o ppm)
lmolinate (1000 ppm)
ivernolate (109 ppm)
CDEC (92 ppm)
,met ham
Avadex Bw®
Tillam®
Ordam®
Vernam<E:
~reemergent ~ostplant, shallow soil ~ild oat control ~oil incorporation. ~n cereals
~reemergent
nnual weed ontrol in omatoes,sugar eets
~ncorporate. Control of f.rellow nuts edge.
Most broadleaves
Many crucifers,puncturevine, burning nettle.
lbarnyardgrass controi in rice
Wre-or-post flood, preemerg.IBroadleaf rice weeds, br early postemergent. sprangletop, nutsedge.
soybean
~ -~~~-+~--~--~---~------~ Vegadex®
Vapam® vPMID
broccoli,lettuc~1short soil residue, pre-~omatoes plant incorporation
soil surface is sealed Mith water or tarp.
Crucifers, grass,malva solonaceae, knotweed
bermudagrass, nutsedge, cheeseweed
soil fumigant for preplant or nonselective IPostemergence. ·-~--·-- J '·-·-·-----r--
. ,asulam (sol.) Asulox® promising for jnot soil active I cod.dcbur
~2NIJ.C01CH3 .~~:~~~~r~~nce . 1·
perennial weeds. methyl I sulfanilylcarblma_t~e~~~....l..~~~~~~.L..~~~~~~~.L.-~~~~~~~~~~~--.i._.~~~~~~~~~~-----
~ ;
V~.&. "'"""~"-- \.--••--••1"'""'--1
BASIC STRUCTURE (E~LES ) wa er sol. TRADE lfAMES USES PERFORMANCE RESISTANT SPECIES
?ethyl carbanil 1.te phenmedipham Betanal c& poster.iergent Apply low gallonage red.root pigweed, red.maids,
( <io ppm) broadleaf weedf 1 qt/10 gal. water :per acre, and barnyardgrass. in sugar beets moderate agitation only.
-~-
~thyl carbamat1 i Azalr.® terbutol crabgrass and Needs complete coverage.
(6 n;mi) annual Not as volatile as most bluegrass carbamates, longer residual. control in tu:rf
~es (cbloroacetamides)
General characteristics: Short to long soil residual (2-12 months), relatively insoluble in water, slight volatility, good grass control, soil-applied except propanil, symptoms from soil application usually stunting.
EXAMPLES TRADE NJ\MF.S USES PERFORMANCE RESISTANT SPECIES BASIC STRUCTURE (water sol.) --
CD.AA Randox® Preemergent or CDAA: more active in soils {20,000 ppm) directed post- of medium to high organic
emergent on matter. 0 onions ..
R-C .. NH-R . di:phenamid Dymia.@ Preplant or generally incorporated, diphenamid: solanaceae (260 ppm) Enide® postplant pre- preemergence under and compositae
emergent sprinklers particularly effective on annual grasses.
Amide RH-315 Kerb@; pre-or early Residual in mineral soils Kerb®-composi tae:
(15 ppm) postemergent 4 months to 6 months, {groundsel, pineapple control in cereal grains and grassy weed,), puncturevine lettuce crops sensitive.
R-7~5 Devrinol<E promising injurious if deep hairy nightshade, henbit, (73 ppm) for tree crops, incorporated, long resid- Russian thistle.
tomatoes, ual, shows promise on ornamentals and yellow nutsedge asparagus
,_,
~"""-- \--• -- - -- .....-,
BASIC STRUCTURE E~IES (wa r· sol.) TRADE NAMBS USES PERFORMANCE BESISTAifll SPECIES
propanil Rogue® postemergent :propa.nil; sprangletop (500 ppm) Stam F-34 ® barnyardgrass
control in rice -
alacblor Lasso® preemergent Shows promise on yellow Alacblor: knotweed, wild oats, 0 (148 ppm) annual grass nutsedge, and solanaceae cocklebur, mustard .. control in corn weeds, shallow incorporation.
R,..C-NH-¢ dry beans
propachlor Ramrod® mile, onions Short-lived in soil. Analides (700 ppm) after 1 1/2
leaf' stage
Ana lines
General characteristics: medium to long residual (4-18 months), low solubility in water, relatively volatile, excellent annual grass control, soil applied (incorporated), symptoms--root inhibition and stunting. Weak on plants of compositae, cruciferae, solanaceae, and leguminosae families.
- . .__........ -- --·-EXAMPLES TRADE NAMES water sol.)
Balan®
Surflan®
BASIC STRUCTURE I J b R R
'I ' 1JN-o-· ~ _N"2 , I
:-._ "
0
R i Paarlan®
n Planavin®
I t Tref'lan®
A t Torpedo®
d Cobex®
I A-820 I (188 ppm) __ • ·-.--
USES -
lettuce,annual grass control in turgrasses
tomatoes
preplant pre-emergent control in annual crops and in established perennial crops
·-PERFORMANCE
soil persistance may limit certain crops in rotation.
Less dependent on rapid soil incorporation. May be watered in. Strongly absorbed.
Requires soil incorporat within 24 hours. StrongJ adsorbed in soil. Very toxic to fish.
Analog of nitralin
Analog of trifluralin
Analog of nitralin
ion .y
RESISTANT SPECIES
Compositae: sunflower, grounds el
Cruciferae: mustard, London rocket, shepherd 1spurse
Solanaceae: ground cherry, nightshade
Leguminosae: burclover
c
c
Phenoxy compounds
General characteristics: short soil residual (1-4 months) moderately volatile, controls broadleaf plants (foliage
applied), symptome twisting of petioles, leaf epinasty. Danger of drift and with some formulations
volatility problems.
BASIC STRUCTURE E~ffiMPLE1 (wa'ter so • ) TRADE NAMES USES PERFORMANCE RESISTANT SPECIES
2,4-D Mmy Broadleaved Some volatility problems Most grasses
-Q-C··C·· ( /\.- Goo ppm) weed control with esters. Soil residual swamp smartweed
()Cl in grain crops, 1-2 mo. drift is a major pastures, turf hazard. and rangeland LD50 Oral 375-800 mg/kg
Cl
2,4,5-T Mrny brush control Volatility and drift are Most grasses
-o-c-c-(238 p:pm) on pasture and primary hazards, Soil
rangeland residual 2-4 mo.
[JCl (foliage LD50 Oral 485-500_mg/kg. trans located
l ...........,,, or basal Cl sprays)
Sil vex Silvex® Brush control Volatility and drift are Most grasses
c (2,4,5-TP) Weedone ® (foliage primary hazards. Soil. St~loniferous grasses
I (180 ppm) (2,4,5-TP) translocated residual 2-4 mo. more sensitive
-o-c-c- Kuron® or basal spray )
LCfl and broadleaf weed control in turfgrass.
- --- -- ----- ----BASIC STRUCTURE
E"'~LES (w~ er sol.) TRADE NAMES USES PERFORMANCE RESISTAiiJT SPECIES I
2,4-DB j But ox one® Bread.leaved Poor results under cold Most grasses, legumes, and I
(essentiallYj Butyrac ® weed control temperatures. other broadleaved weeds
c-c-c-c- insoluble ' in seedling Converts to 2,4-D in ( chee seweed ) i
Cl in water) i legumes susceptible plants and in I 1
soil, residue in soil 1-2 mo.
! LD50 Oral 400 mg/kg Q
-~-dichlorprop Propi-Rhap® brush control Similar to 2,4-D but Most grasses and some
(2,~-DP) Visko-Rhap ® effective on oal:s. brush species. Cl c, (710 ppm) Brusbkiller LD50 Oral 400 mg/kg
170® I Q MCP.h. several Broadleaved similar to 2,4-D but more most grasses and some
-0-C-C- (essentiall;y weed control selective, i.e. rice, oats, legumes.
QCH3 insoluble in grain crops~ and ladino clovers. in water) pastures, and
some legur;1es
c -o-s-c-c-c- MCPB Can-trol® Canada thistle Similar to 2,4-D but more most grasses and legumes.
......_ H (essentiall~ Thitrol® in Slllall selective on legumes. ] 3 insoluble ir grains and pea:; w50 Oral 700 mg/kg
ff water)
c M~coprop l4:?coprop® Control of Similar to 2,4-D Turf grasses
\ MCPP V.ecopex® broadleaves LD50 Oral 650 mg/1:g
>-C-C (600 ppm) (clover, etc.)in
CH., turfgrass. Saf ~r
I .) on bentgrass than others in 0 this group.
/\ l
H
Chlorinated benzoic acid derivatives
General characteristics: Short (chloramben, 1-2 mo.) to long residual--12-24 +months, relatively nonvolatile, controls broadleaf plants (soil applied and/or foliage applied) Cexcept chloramben) symptoms, twisting of petioles, leaf epinasty, hazard from dri~.
BASIC STRUCTURE EXAMPLES TRADE NAMES USES PERFORMANCE RESISTA~JT SPECIES /----'---- ....... , ' picloram To rd on® Broadleaved Soil residual to 2 years or grasses and cruciferae
{430 ppm) Tordon 22~ weeds and brush more is major hazard. (mustard) family to low Tordon Bead~ on noncrop land, LD50 Oral 8200 mg/kg. rates. v·CL Tordon lOK® as foliage
C : COOR pellets trans located sprays and as
N soil residual treatments.
dicamba Banvel® Foliage trans- Major hazards are dri~ and Dandelion and plantain (4500 ppm) located spray soil residual. tolerant to dosages used
for broadleaved LD50 Oral 2900 mg/kg ort grass turf. Swamp weeds in small smartweed, perennial n c: l'l~ grains, corn, peppergrass. sorghum, grasses, and turf. Fol-iage or soil treatment for perennial weeds on noncrop land •
. , ···-2,3,6-TBA Trysben 2ocfB Soil residual Soil residual to 2 years is grasses have some
0 PBA Benzac 1281@ treatment for major hazard. tolerance
l Cl (8400 ppm) Benzac 354® perennial LD50 Oral 750-1644 mb/kg broadleaved
Cl weeds on noncrop land.
c.
Chlorinated benzoic acid der~vatives (continued)
BASIC STRUCTURE E'~ (wa er sol.)
~ TRADE NAMES USES PGRFORMAUCE RESIST.ANT SPECIES
\
c
..
chloramben \Amiben® l A soil incorpo- Soil residual 1-2 months Controls only limited number
COOR (700 ppm) , Vegiben® !rated selective LD50 Oral 3500-5620 mg/kg of broadleaved s:pecies.
' I treatment. Better for grass control. eel jPreemergence in
1 )NH2 squash,soybeans established tomatoes ,and lirna beans
..
Nitriles (alkyl cyanides)
General characteristics: Short (Bromoxynil) to medium {dichlobenil) soil residual, better broadleaf than grass control.
BASIC STRUCTURE ~~ol.) TRADE NAMES USES PERFORMANCE RESISTANT SPECIES
dichlobenil Casoron® tree and vine relatively high vapor Marestail, puncturevine {18 ppm) crops, ponds, pressure, w.p., must annual grasses
C ::;:;:. N buckhorn plan- incorporate, general ,- tain, Equisetum annuai weed control;
0 control promising on bindweed and nutseclge. Ladino clover and trefoil fairly resistant.
bromo:rynil Brominil® selective Fiddleneck control in Most grasses, Pigweed {<200 ppm) Buctril ® foliar contact cereals, control of
Nu.lawn ® herbicide in seedling broadleaf weeds cereals and in young grass turf. turf
Organic Arsenicals
General characteristics: Pa.rent compound has a short soil residual. The elemental arsenic component, however, is adsorbed and is long residuel. Foliage applied, translocated except cacodylic acid. Non volatile. Repeat applications normally necessary on perennials for control. Monocotyledons more sensitive than dicotyledons
~ksrc STRUCTURE EXAMPLES (Water sol. ) TRADE NAMES USES PERFORMANCE RESISTANT SPECIES
DSMA Ansar 184® Selective post- Registered only in cotton Bermudagrass, most
R 0 . (256,000 ppm) Sodar ® emergent, crab- and in California in non- turf grasses,_ TJ]?ba.
" ti Dimet ® grass and dallis- bearing tree fruits. All
As - R grass control in arsonates are appreciably R/ turf, johnsongrasE less effective under con-
bulrush, and nut- ditions of cool (700 F. sedge. or less) temps.
MSMA Ansar 529 ® (256,000 :ppm) Ansar 170®
Arsonate ®.: liquid
Weed-E-Rad 12( ® Weed Free 12 <i! Daconate ®
MAMA (256,000 ppm) Monoammonium
met~l arsonatE ®
AMA Super Crab-® (soluble) E-Rad
Methar ®
CMA Ca.lar ® (soluble)
Cacodylic Phytar 138® Nonselective post Will kill weeds under watex Broadleaf weeds more Acid Pbytar 168® emergence annual stress conditions better resistant-than grasses.
(667,000 p:pm) Phytar 560® ~eed control. Alsc than paraquat. Kilz-All® formulated with Good dessicant. Rad-E-Cate 35(l-1$MA (Br• ad.side ) r with 2,4-D
(Mad ). ..
l j
f t r f
r
I··
~
Dipyridyliums
General characteristics: No soil activity,binds to soil, No antidote foliage applied or in water, po7appreciable translocation, possible drift hazard.
EXAMPLES BASIC STRUCTURE (wa.telLSOl.) TRADE NAMES USES PEP.FOP.MANCE RESIST.fu'lT SPECIES
Q ++ Diquat Ortho Diquat<B Submersed aquatic Deactivated in muddy Chara and other submersed -.
yj2 {soluble) weecL control. water or in presence of algae.
~·r Edging of heavy algal bloom. Highly ornamentals. active on Elodea, Bi ode-
grades slowly, strongly e.asorbed.
paraquat (soluble) Paraquat® nonselective Used with a sur~actant. Cheeseweed, knotweed, filaree,
contact herbicide Destroys green tissue Fluellin, and older plants ++ including green stems of of many species. _,
young trees or vines.
fs-N() c ~ . I Paraquat corrosive to
-CH3J 2Cl aluminum. Biodegrades slowly, strongly aasorbed. t Drift hazard to susceptible crops
GBotJl>: MISCELLANEOUS _..,.... ... -BASIC S'l'RUCTURE EXAMPLES TRADE NAMES
wate,.. snl. \
o,, /~ bCPA IDacthal® c :<J. ppm) Kem-Krab®
01Cr i Cl ~ Cl
c d<I 'OCH3
nitro:f'en !~
c (insoluble)
Q~ Cl
~G~G~ flurodifen Preforan\IV . (<2.o ppm) Fj
HN-N 19mitrole ;Amitrol 9o®
' II · (28o,ooo ppm Amizol® BC C-Imt! ~N' ~mitrole Amitrol-'l®
+ Cytrol® !ammonium.
thiocyanate
'.\{ q1 .. 2 Balapon · Dowpon® u-9-g-c-o-Na (900,000 ppm
H 1
USES
Preemergent annual weed control in grass turf, onions, cotton, garlic, and most ornamentals Pre-or early postemergent annual weed control in onions, cruci-f erous crops {cabbage, brussel sprouts) and ornamentals
Foliage treat-ments for cattail horsetail rush, hoarycress, Poison oak and general annual weeds.
Foliage treat-ments for grass control and ,.,..,,,£..&...,.;,
PERFORMANCE
"lery low solubility, 0.5 ~pm, must be incorporated lnechanically or by leaching. breemergence use under 3prinklers, more predictable ~ontrol in lighter soils.
~f'ective early pcstemergena: short residual, may be deac-.. i vated by cultivation •.. lood performance under sprinkler irrigation al-though excess water at first in'igation may injure olants {girdling)
Similar to nitro:f'en
rranslocates readily. Applied with a surfactant
~pplied with a surfactant, rapid breakdo-wn in moist, iNarm soil.
RF.SIS1'ANT SPECIES
Ground cherry, bur clover, shepherd's purse, legumes, groundsel burning nettle, pigweed
Mustard, chickweed, groundsel, some annual grasses.
Dallisgrass, jobnsongrass nutsedge, swamp smartweed bindweed.
Knotgrass, bulrush; nuts edge, most broadleaves.
, '
VUVV.L o &..,,,,.,,...,..,~ .. ,-"'...,._ ,--··--.. ·---1 .. EXAMPLES - -· MSIC STRUCTURE (water sol.) TRADE NAMES~ USES PERFORMANCE RESISTANT SPECIES
ClO TCA TCA® Soil applied Little or no adsorption in Manybroadleaves t If (13.o6 x 106 for grass soils, leaches readily,
c1-c-c-o-.Na wm> control difficult to control b1 excessive leaching.
Pyrazon Pyramin® Preemerg. and Excess irigation may cause Grasses, pigweed;
Q fr (300 ppm) postemerg. injury to seedling sugar lambs quarters
broaclleaf weed beets.
Pyrazon Pyramin® control in
O' 'Cl + Plus sugar beets dalapon - --·------S-9789 --- Experimental Incorporate, controls Knotweed1 spurge,
~ N CB) (4o ppm) herbicide for grasses. pigweed
Q' tree crops
_=1 '\ B3 o' Cl
CF·
0 B CH3 it I Karbutilate Tandex® Soil applied Granule application for
o-c-N-y-CB3 (325 ppm) for non-crop stump removal of woody
CH3 areas. species
f-C•H·CB " ' 3
0 :I O CB3
,_>aio~n-ctBS oxidiazon Rons tar® Soil applied Leaches slowly, need irri- Chickweed . h RP-17623 pre-or early gation or winter rainfall. Q;N (0.7 ppm.) post in orchard,,
vineyards. Pre-emergence· crab-
{CH·
grass control in turf.
-- -
GltoUP: MISCELLANEOUS (continued) 1 EXAMPLES
'RALctT~ ~'T'Rfr~rrr:mff! I (water sol. \ I TRADE NAMES USES I
i HjO~
\
$ llO~Q-g-e-c
! 2
I !
! I ~- ·. i
/' \ Ii \ ·\ ·~
1\
sulfU.Tic acid
Weed oils
dinoseb (52 ppm)
selective·sprq in onions and· in orchards
Avon Anna.los 1general weed 7 Weed Killer control General Weed!> selective control
Oil in carrots, Richfield A® j onions, cotton lJYkil ® celery Selective® Weed Oil
Stoddard ® solvent
Dow General cE ~eneral weed Sinox General ontrol, &emeree ® , fortifiers for Sinox FE® ~eed oils, Dew Selective elective in Sinox W ® grains, onions,
etc. and preemergence.
PERFORMANCE RESISTANT SPECIES
Formulations: available as - ·· 1 Grasses, sow thistle commercial acid. established shepherds
Hazardous: highly corrosive purse to metal, ·skin and clothing.
Soil residual-combines immediately with soil or with plant tissue. LD50 l oz. lethal to humans.
general contact weed oils ar~Some composites (groundsel1
used straight or diluted wit wild lettuce) and some water and used as emulsions. umbellifers May be fortified. Selective weed oils are used straight.
Formulation: NH4 salt, sol. amine salts sol. parent phenol EC
Used as foliage contact sprqs or selective soil treatments. Soil residual 2-4 weeks. LD50 5-60 mg/kg. may girdle young trees
Broadleaf species as a group more susceptable than grasses
'\,'.'"
GROUP: MISCELLANEOUS (continued\
BASIC STRUCTURE
0 H
H N-S-ONH. 2 0 ~
Na Cl o3
Nai3407
14~·.nMUT "L.~C'
(water sol. ) I TRADE NAMES
~ (684,ooo ppm)
.sodium chlorate 6 ~ 1. 5 ::c 10 ppa)
~orates 1(59,300 ppm)
Ammate® Ammate X®
Atlacide ® Sodiro1 ® Chlorate
Borascu
USES
Contact kill of woody plants
soil treatment for perennial weeds
Soil treatment f'or perennial weeds
PERFORMANCE
Formulations: dry crystals. Used as foliage contact sprS\Y has limited translocation Hazards-corrosive. Soil residues, 1-2 months tn50 - 3900 mg/kg
Formulation: dry CX"'Jstals or powder.
Used as soil residual herbi-cide
Hazards-·inflammable when mixed with organic 1ilatter. Soil residue - to 2 years or more. Ln50 1~500-5000 mg/kg
Formulations: dry Usually used in mixtures 1dth other herbicides. Used as soil residual herbicides. Hazards-none. Soil residual - to 2 years or more. LD50 556o mg/tqr,.
RESISTANT SPECIES
Resprouting woody species unpredictable.
white top
white top, bromegrasses.
Recommended