docker: production image + Gitea Actions for monthly refresh

Dockerfile: self-contained image with corpus + Chroma + BM25 baked
in. Drawbar's compose pulls + runs without volume mounts. Built from
sources.json (labels schema), PRODUCT_NAME=crop_chem by default,
HYBRID_SEARCH=true (always-on for production quality). RERANK_URL +
OLLAMA_URL get set at compose time.

.gitea/workflows/refresh.yml: monthly cron (1st @ 06:00 UTC) does
full scrape → reindex → image push. Scrapes Bayer (~30 min) +
EPA PPLS row-crop filtered (~7h). Skips reindex+push if no corpus
diff. Tags pushed: :latest, :<sha12>, :corpus-<YYYY.MM.DD>.

.gitea/workflows/image-only.yml: on-demand or auto on code-only
pushes to main (paths: docs_mcp/, rag/, scrape/, requirements.txt,
Dockerfile, sources.json). Reindexes from committed corpus, builds
image, pushes. ~10 min vs ~9h full refresh.

.gitignore: corpus/ now COMMITTED (4,159 labels, 265 MB of .md +
sidecars). Lets image-only.yml rebuild indexes without re-scraping.
chroma/ + bm25/ still gitignored (regenerable binary indexes).

.dockerignore: drops venv, eval results, PLAN/README/CLAUDE.md,
deploy/, .git/ — keeps the image lean. corpus + chroma + bm25
explicitly NOT in dockerignore (those go INTO the image).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

corpus/epa_ppls/100-661.md

@@ -0,0 +1,909 @@
+# IGRAN 4L
+
+- EPA Reg No: **100-661**
+- Registrant: SYNGENTA CROP PROTECTION, LLC
+- Signal word: Caution
+- Active ingredients: Terbutryn (47.6%)
+- Label accepted: 1986-03-17
+- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-00661-19860317.pdf
+
+---
+) 
+(Front Cover) 
+Igran~ 4L· 
+Herbicide 
+For weed control in grain sorghum and 
+noncrop land areas 
+Active Ingredients: 
+Terbutryn: 2-tert-butylamino-4-
+ethylamino-6-methylthio-s-
+/oF 1/ 
+I i <\ 
+ACCEPTED' 
+; "lA!, 1 71286 
+i ,I - " I! ~ 1 t 
+, . 
+I _' ", i: ~.,., ~ 'i" ", , ; 
+,~, Co;'-" .0"'.-':' :_; I;-•• ~: "; .. i., 
+~p~J~~~~ r~;Ji~- _~.6t:/ __ , 
+triazine ............... -:- ............................... . 45.2% 
+2.4% 
+52.4% 
+100.0% 
+Related compounds ..•••.•••.••..•......••..••...•••..•... 
+Inert Ingredients: 
+Total: 
+EPA Reg. No. 100-
+Igran 4L contains 4 lbs. active 
+ingredient per gal. 
+Keep Out of Reach of Children. 
+CAUTION 
+See additional precautionary statements 
+at end of label booklet. 
+See directions for lIse inside booklet. 
+2 1/2 Gallons 
+U.S. Standard Measure 
+CIBA-GEIGY 
+01985 CIBA-GEIGY Corporation 
+Agricultural Division 
+CIBA-GEIGY Corporation 
+Greensboro, NC 27419 
+.'. 
+"
+
+-2-
+DIRECTIONS FOR USE AND CONDITIONS OF SALE AND WARRANTY 
+IMPORTANT: Read the entire Directions for Use and the Conditions 
+of Sale and Warranty before uSing this product. ---------
+Conditions of Sale and warranty 
+The Directions for Use of this product reflect the opinion of 
+experts based on field use and tests. The directions are 
+believed to be reliable and should be followed carefully. How­
+ever, it is impossible to eliminate all risks inherently associ­
+ated with use of this product. Crop injury, ineffectiveness, or 
+other unintended consequences may result because of such factors 
+as weather conditions, presence of other materials, or the manner 
+of use or application all of which are beyond the control of 
+CIBA-GEIGY or the Seller. All such risks shall be assumed by the 
+Buyer. 
+CIBA-GEIGY warrants that this product conforms to the chemical 
+description on the label and is reasonably fit for the purposes 
+referred to in the Directions "for Use subject to the inherent 
+risks referred to above. CIBA-GEIGY makes no other express or 
+implied warranty of Fitness or Merchantability or any other 
+express or implied warranty. In no case shall CIBA-GEIGY or the 
+Seller be liable for consequential. special, or indirect damages 
+resulting from the use or handling of this product. CIBA-GEIGY 
+and the Seller offer this product, and the Buyer and user accept 
+it, subject to the foregoing Conditions of Sale and Warranty, 
+which may be varied only by agreement in writing signed by a duly 
+authorized representative of CIBA-GEIGY. 
+. , ... , , 
+.. ,"t'. 
+"
+
+'2uF " 
+-3-
+DIRECTIONS FOR USE 
+It is a violation of federal law to use this product in a manner 
+inconsistent with its labeling. 
+FAILURE TO FOLLOW THE PRECAUTIONS AND DIRECTIONS FOR USE ON THIS 
+LABEL MAY RESULT IN CROP INJURY, POOR PERFORl-IANCE, AND/OR ILLEGAL 
+RESIDUES 
+General Informat1on 
+Igran 4L is a selective herbicide for control of many annual 
+broadleaf weeds and grasses. The weeds controlled are as fol­
+lows: 
+Sorghum 
+annual groundcherry 
+carpetweed 
+crabgrass 
+foxtail 
+junglerice 
+kochia 
+lambsquarters 
+morningglory 
+pigweed 
+puncturevine 
+ragweed 
+Russian thistle 
+smartweed 
+velvetleaf 
+barnyardgrass 
+(watergrass) 
+Noncrop Areas 
+barnyardgrass 
+blue mustard 
+carpetweed 
+chickweed 
+China lettuce 
+cocklpb'lr 
+aogfennel 
+fiddleneck 
+field pennycress 
+green foxtail* 
+gromwell 
+henbit 
+kochia 
+nightshade 
+pepper weed 
+pigweed 
+purslane 
+tarweed 
+teaweed 
+tumble mustard 
+tumbleweed 
+white sweet clover 
+wild buckwheat* 
+wild mustard 
+... t' 
+" ,.,' 
+. c " 
+, " ,,", ..... 
+" 
+" , 
+" , 
+I' " 
+.',' 
+" ,'. ,", , ...... . 
+" t' 
+*1n fallowed areas, 19ran 4L gives partial control of gre,en,', 
+c' I' ,-
+foxtail and wild buckwheat. "" , 
+,",- ....
+
+! 
+I ~. 
+-4-
+Following many yea~s of continuous use of this p~oduct and chem­
+ically related p~oducts, biotypes of some of the weeds listed on 
+this label have been ~epo~ted which cannot be effectively con­
+trolled by this and related he~bicides. Whe~e this is known o~ 
+suspected and weeds controlled by this product are expected to be 
+present along with resistant biotypes, we ~ecommend the use of 
+this product in ~egistered combinations or in sequence with other 
+registered he~bicides which are not triazines. If only resistant 
+biotypes are expected to be present, use a ~egistered non­
+triazine herbicide. Consult with your State Ag~icultu~al Exten­
+sion Service for specific recommendations. 
+Ig~an 4L is applied before weeds emerge and enters weeds th~ough 
+their roots after germination. Preemergence effectiveness de­
+pends, therefore, on rainfall or ir~igation to move Igran 4L into 
+the soil. Very dry soil conditions may necessitate a shallow 
+cultivation. When applied to emerged weeds, Ig~an 4L provides 
+foliar knockdown of existing weeds and resi0ual control of late~ 
+ge~minating weeds. 
+In each case whe~e a range of ~ates is given, the lower ~ate 
+should be used on ~elatively coarse-textu~ed soils or soils low 
+in organic matter; the highe~ rate should be used on ~elatively 
+fine-textured soils or soils high in organic matter. 
+For Igran 4L alone on sorghum, nonpressu~ized liquid fertilizer 
+may replace all or pa~t of the wate~ as carrier for ground appli­
+cation. 
+Application Procedures 
+Ground Application: Use conventional ground sprayers equipped 
+with nozzles that provide accurate and uniform application. Be 
+certain that nozzles are uniformly spaced and are the s~me size. 
+Calibrate sprayer before use and recalib~ate at the sta~t of each 
+season and when changing carri~rs. Unless otherwise specified, 
+use a minimum of 10 gals. of spray mixture/A for all applications 
+(with or without surfactant) with g~ound equipment. 
+Use a pump with capacity to (1) maintain 35-40 psi at noulcs, : ... 
+(2) provide sufficient agitation in tank to keep mixture' .in· 'sus':' 
+pension, and (3) to provide a minimum of 20% bypass at all' times~: 
+Use centrifugal pumps which provide propelle~ shea~ action for "'" 
+dispersing 'and mixing this product. 
+L •• , 
+L ", 
+"
+
+I -5-
+Use screens to protect the pump and to prevent nozzles from 
+clogging .. screens placed on the suction side of the pump should 
+be 16-mesh or coarser. Do not place a screen in the recircula­
+tion line. Use 50-mesh or coarser screens between the pump and 
+boom, and where required, at the nozzles. Check nozzle manu­
+fact~rer's recommendations. 
+For band applications, calculate amount to be applied per acre as 
+follows: 
+band width in inches 
+row width in 1nches x broadcast rate 
+per acre = amount needed 
+per acre of field 
+Aerial Application: Use aerial application only where broadcast 
+ap;)Hcations are s?ecified. Apply Igran 4L alone or in combina­
+ti)ns in a minimum of 5 gals. of water per acre. Avoid applica­
+ti~ns under conditions where uniform coverage cannot be obtained 
+or where excessive spray drift may occur. In order to assure 
+that spray will be controllable within the target area when used 
+according to label directions, make applications at a maximum 
+height of 10 ft., using low drift nozzles at a maximum pressure 
+of 40 psi, and restrict application to periods when wind speed 
+does not exceed 10 mph. To assure that spray will not adversely 
+affect adjacent sensitive nontarget plants, apply Igran 4L alone, 
+or in combination with Milogard®, by aircraft at a minimum upwind 
+distance of 300 ft. from sensitive plants, or apply Igran 4L + 
+AAtrex® and Igran 4L + AAtrex + paraquat at a minimum upwind 
+distance of 500 ft. from sensitive plants. For additional pre­
+cautions, see Precautionary Statements section at the end of the 
+label. 
+Avoid application to humans or animals. ~lagmen and loaders 
+should avoid inhalation of spray mist and prolonged contact with 
+skin, and shoulc wash thoroughly before eating and at the end of 
+each day's operation. 
+Application in water or liquid .fertilizer: Nitrogen solution or 
+complete liqu1d fert111zer may replace-aIl or part of the water 
+as a carrier. Check the compatibility of this product with 
+liquid fertilizer and/or nitrogen solution as shown below before 
+use. Do not apply in nitrogen solution or complete liquid, :"'" 
+fertilizer after sorghum emerges. '".',' : .. ", 
+, , . ("" , 
+" . 
+I •• " , ..... 
+, 
+•••• # • 
+. , 
+• , "'" f .. . ,,, 
+. ... • " 
+....
+
+l 1 -6-
+Compatibility Test: Since liquid fertilizers can vary, even 
+within the" same analysis, always check compatibility with herbi­
+cide(s) each time before use. Be especially careful when uSing 
+complete suspension Jr flUid fertilizers as serious compatibility 
+problems are more likely to occur. Commercial appl~cation equip­
+ment may improve compatibility in some instances. The following 
+test assumes a spray volume of 25 gals. per acre. For other 
+spray vollmes, make appropriate changes in the ingredients. 
+Check compatibility using this procedure: 
+1. Add 1 pint of fertilizer to each of 2 one-quart jars with 
+tight lids. 
+2. To one of the jars add 1/4 tsp. or 1.2 milliliters of a com­
+patibility agent approved for this use, such as Compex® or 
+Unite~ (1/4 tsp. is equivalent to 2 pts. per:"O gals. 
+spray). Shake or stir gently to mix. 
+3. To both jars add the appropriate amount of herbicide(s). If 
+more than one herbicide is used, add them separately with 
+dry herbicides first, flowables next, and emulsifiable con­
+centrates last. After each addition, shake or stir gently 
+to thoroughly mix. The appropriate amount of herbicides for 
+this test follows: 
+Dry herbi,-,~des: For each pound to be applied per acre, 
+add 1.5 level teaspoons to each jar. 
+Liquid herbicides: For each pint to be applied per acre, 
+add 0.5 teaspocn or 2.5 milliliters to 
+each jar. 
+4. After adding all ingredients, put lids on and tighten, and 
+invl!rt each jar ten times to mix. Let the mixtures stand 15 
+minutes and then look for separation, large flakes, precipi­
+tates, gels, heavy oily film on the jar, or other signs of 
+incompatibility. Determine if the compatibility agent is 
+needed in the spray mixtu:e by comparing the two jars. If 
+either mixture separates, but can be remixed readily, the 
+mixture can be sprayed as long as good agitation is used. 
+If the mixtures ~re incompatible, test the following methods 
+of improving compatibility: (A) slu~ry the dry herb~~ide(~)" 
+in water before addition, or (B) add 1/2 of th~ compaf~bil~ 
+ity agent to the fertilizer and the other 1/2 to the emulsi­
+fiable concentrate or flowable herbicide before addition to 
+the mixture. If incompatibility is still observed, do not 
+use the mixture. " 
+I
+
+! , 
+-7-
+Mixing Procedures - All Uses: (1) Be sure sprayer is clean and 
+not-contaminated with any other materials, or crop injury or 
+spraye~ clogging may result. (2) Fill tank 1/4 full with clean 
+water, nitrogen solution, or complete liquid fertilizer. 
+(3) Start agitation. (4) Be certain that the agitation system is 
+working properly and creates a rippling or rolling action on the 
+liquid surface. (5) Pour product directly from the container 
+into tank. (6) Continue filling tank until 90% full. Increase 
+~gitation if necessary to maintain surface acticn. (7) Add 
+emulsifiable oil, oil concentrate, or tank mix herbicide(s) after 
+this product is thoroughly suspended. (8) Finish filling tank. 
+(9) Empty tank as completely as possible before refilling to 
+prevent buildup of oil or emulsifiable concentrate residue. 
+Maintain agitation to avoid separation of materials. (10) If an 
+oil or emulsifiable concentrate film starts to build up in tank, 
+drain it and clean with strong detergent solution or solvent. 
+(11) Clean sprayer thoroughly immediately after use by flushing 
+system with water containing a detergent. 
+Grain Sorghum 
+Igran 4L may be applied alone or in tank mix combination with 
+either AAtrex or Milogard prior to planting with shallow incorpo­
+ration, at planting time, or immediately following. planting, but 
+before weeds and sorghum emerge. Igran 4L may also be applled in 
+tank mix combination with AAtrex and paraquat where grain sorghum 
+will be planted directlj into cover crop, established sod, or in 
+previous crop residues. Apply during or after planting, but 
+before sorghum emerges. Do not apply to emerged sorghum. When. 
+applying preplant with shallow incorporation, apply within 
+2 weeks of planting and incorporate into the top 1-2 inches of 
+soil using a rolling cultivator, rotary hoe, spike- tooth harrow, 
+or similar implement. For sorghum planted on beds, apply and 
+incorporate after bed f0rmation. 
+In case of planting failures, sorghum may be replanted into soil 
+previously treated with Igran 4L or Igran combinations. Do not 
+apply a second broadcast application, or injury may occur. If 
+Igran 4L or Igran combinations are applied in a band, and sorghum 
+is replanted in the untreated row middles. Igran 4L or Igran 
+combinations may be applied in a band to.~he second planting. 
+If irrigation is necessary, irrigate within the first 36 :J~~~S 
+after planting or wait until after the sorghum is at least two 
+inches· tall, or injury may occur.
+
+-8-
+Igran 4L Alone: Apply Igran 4L at the rate indicated in Table 1 
+or 2. 
+Table 1 
+--- -------- ------~.- ._--------_._---- -~----- ~- -- --- -----------~-----.- -
+Grain Sorghum 
+Annual Broad leaf and Grass Weed Control 
+Region 
+All sorghum 
+growing 
+regions of 
+the U.S.; 
+except states 
+shown below 
+Eastern 
+Colorado, 
+South Dakota. 
+Illinois, 
+Iowa, 
+Kansas, 
+Minnesota, 
+Missouri, and 
+Nebraska 
+Soil 
+Texture 
+sand, 
+loamy sand 
+sandy loam 
+to loam 
+Broadcast Rate 
+Per Acre 
+DO NOT USE 
+2 qts. 
+----------- ------------ ----
+silt loam 2.4 qts. 
+to clay 
+sand DO NOT USE 
+loamy sand 1.6-2 qts. 
+sandy loam 2 qts. 
+to loam 
+----------- - ----------- -----
+silt loam 
+to clay 
+2.4 qts.
+
+-9-
+Table 2 
+Grain Sorghum 
+Annual Broadleaf Weed Control Only 
+Region 
+Soil 
+Texture 
+Broadcast Rate 
+Per Acre 
+sand 0.8 qts. Kansas, 
+Oklahoma, ~.------------.-----
+New Mexico, 
+Texas, and the 
+desert regions 
+of Arizona and 
+California 
+loamy sand 1.2 qts. 
+----------- -------------
+all other 
+soil 
+textures 
+1.6 qts. 
+Igran 4L + Milogard or Igran 4L + AAtrex: A tank mixture of 
+Igran 4L + Mllogard or Igran 4L + AAtrex can be used in the 
+regions indicated below, for more consistent weed control than 
+when Igran 4L is used alone. Apply the tank mixture at the rate 
+indicated in Table 3. Do not use either combination on sand or 
+loamy sand soils. 
+.. . . .. , 
+. ..... .
+
+/0' . 
+-10-
+Table 3 
+Grain Sorghum 
+Annual BroadleaE and Grass Weed Control 
+Region 
+Illinois, 
+Iowa, 
+Eastern Kansas, 
+Minnesota, 
+Missouri, and 
+Eastern and 
+Central 
+Nebraska, 
+South Dakota 
+Central 
+Kansas, 
+Western 
+Nebraska, 
+Oklahoma, and 
+Texas 
+----------
+Eastern 
+Colorado, and 
+Western Kansas 
+Broadcast Rate Per Acre 
+Soil 
+Texture 
+---------j-
+Igran 4L 
+Milogard 
+~laxxo!D 90* 
+AAtrex 
+Nine-O<!>* 
+--+---------
+sandy 1.6 qts. 0.45 lb. DO NOT USE 
+loam 
+loam and 1.6-2 qts. DO NOT USE 0.9 lb. 
+finer 
+sandy 1.6 qts. 
+loam 
+loam and 1.6-2 qts. 
+finer 
+sandy 
+loam and 
+finer 
+1 • 6 qts. 
+0.45 lb. DO NOT USE 
+0.9 lb. DO NOT USE 
+0.45 lb. DO NOT USE 
+_________ -L __ 
+*When using Milogard 4L, Milogard BOW, AAtrex 4L, AAtrex 4LC or 
+AAtrex BOW, use equivalent rates. 0.9 lb. of Nin~-O or Maxx 90 
+equals 1.0 lb. of BOW. 0.9 lb. of Nine-O or Maxx 90 equals 1.6 
+pts. of 4L or 4LC. : ..... . . 
+to •••• 
+. ..... 
+.... . . . . . . . 
+. ..... • 
+..... . .. . . . '" .. 
+" ..
+
+I 
+-11-
+Igran 4L + AAtrex + Paraquat: Apply the tank mixture at the 
+rates indicated In-Table 7-.- Refer to paraquat label concerning 
+directions, limitations, and cautions for use of that product. 
+Apply in 20-40 gals. diluted spray per acre. Add a nonionic 
+surfactant such as X-77® at 1 to 2 pts. per 100 gals. diluted 
+spray. Use only water or nitrogen solutions as a carrier. Add 
+Igran to spray tank first, mixing thoroughly in carrier. Next, 
+add AAtrex, paraquat and X-77. Maintain agitation of carrier at 
+all times. 
+Table 4 
+Grain Sorghum 
+~roadleaf and Grass Control 
+Broadcast Rate Per Acre 
+Soil Texture Igran 4L 
+-----------------+------
+COARSE: DO NOT USE 
+Sand, loamy sand 
+MEDIUM: 
+Loam, silt loam, 1.6 qts. 
+silt 
+FINE: 
+Sil ty clay loam, 
+sandy clay loam, 
+clay loam, 2 qts. 
+sandy clay, 
+sil ty clay, 
+clay 
+AAtrex 
+Nine-O* 
+DO NOT USE 
+0.9 lb. 
+1.8lbs. 
+Paraquat 
+DO NOT USE 
+1.0-2.0 pts. 
+1.0-2.0 pts. 
+.............. 
+*When using AAtrex 4L, AAtrex 4LC or AAtrex 80W, use equivaolent 
+rates. 0.9 lb. of Nine.-Q equals 1.6 pts. of 4L or 4LC. 0.9 lbo~ooo 
+of Nine-O equals 1 lb. of 80W. 
+o 
+............ 
+.. .......... 
+o 0 
+............ .... .. .. .... .... .. .. .... 
+00
+
+/ .) " ry I 
+-12-
+Winter Weed Control in Texas: For postemergence control of 
+winter weeds only, such as henbit (purple top), seedling dock, 
+and annual thistle on fall bedded land in the Texas Gulf Coast 
+and Blackl-ands of Texas. apply 0.6-0.8 qt. of 19ran 4L per acre. 
+postemergence to the weeds in the fall or winter to land that 
+will be planted to sorghum the following spring. For best 
+results. add a suitable surfactant. such as X-77. at the rate of 
+0.5% of the spray volume, an emulsifiable oil at the rate of 1.0% 
+of the spray volume. or an oil concentrate at the rate of 1 qt. 
+per acre. 
+Normal programs of weed control may be used in the following 
+sorghum crop. 
+Note: To avoid crop injury or illegal residues, do not plant any 
+crop except grain sorghum the spring following this treatment. 
+Precautions: Igran 4L alone and Igran 4L combinations - To avoid 
+crop lnjury, 1) apply only on sorghum planted after the minimum 
+sOLI temperature has reached 60"F or Inore for at least three 
+consecutlve days, 2) do not walt more than two days after plant­
+lng to apply, 3) do not apply over emerged sorghum, 4) do not 
+apply to millets, sudan-sorghum hybrids, or sorghum breeding 
+stocks, 5) do not apply to sorghum growing on alkall soils, 
+caliche outcroppings, or where cuts, fills, or erosion have 
+exposed calcareous SUbSOll, 6) do not make a broadcast applica­
+tlon to sorghum planted ln furrows deeper than two inches to 
+avold concentration of herbiclde ln the seed furrow. WI~of 
+the band should not exceed the width of the bottom of the furrow, 
+and 7) do not apply a second appllcation to the same crop. 8) 
+Ralnfall or overhead irrigatlon at the time of sorghum emergence 
+and until sorghum lS 2 inches tall may cause crop inJury. 
+. ...... .. • . • · • • • • .. · ...... · • .. . .... • ..... · · ...... • 
+· ...... • • · •• •• • 
+· · ........ .. • · .. •• • ... • • .. ·
+
+'-:cJ'.)/ 
+-13-
+Suggestions for Crop Rotation: 
+Following Igran 4L Alone: 
+1) Sorghum stubble should be plowed (disk or moldboard) prior to 
+planting the next crop. 
+2) Rotational crops may be planted as follows to avoid illegal 
+residues: 
+4 months: winter wheat 
+7 months or longer: all other crops 
+following normal agricultural practices and planting dates. 
+Following Igran 4L + AAtrex and Igran 4L + AAtrex + paraquat: To 
+avoid crop injury: 1) land treated with Igran 4L + AAtrex should 
+not be planted to any crop except corn or sorghum until the fol­
+lowing year. 2) do not rotate with crops other than corn or 
+sorghum the next year if Igran 4L was applied after June 10. 
+3) do not plant sugar beets, tobacco, vegetables (including dry 
+beans), spring-seeded legumes, and grasses the following year. 
+4) Injury may occur to soybeans planted in north central and 
+northwest Iowa, south central and southwest Minnesota, southeast 
+South Dakota, and northeast Nebraska the year following an appli­
+cation on soils having a calcareous surface layer. 
+Following Igran 4L + Milogard: 
+Sorghum, cotton, or corn may be planted 12 months after applica­
+tion. All other crops may be planted 18 months after applica­
+tion. 
+When applying Igran combinations, see the General Information 
+section and caution statements on the Igran label, and precau­
+tions listed on the AAtrex and Milogard labels for further infor­
+mation. 
+Chemical Fallow 
+Wheat-Sorghum-Fallow: AAtrex 4L (4LC), AAtrex 80W, or AAtrex 
+Nlne-O may be used to control annual weed~ after wheat hqt~~~t 
+and in the following scrghum crop when grown under minimUlft< ~il­
+lage. Refer to the AAtrex label for directions, precautions, 
+and limitations. 
+• • ..... c • . 
+.. < 
+....... · .. • • 
+I ••• " 
+· . . .... • · .... 
+· ... , . · . 
+'" I ••••• 
+. ' . ... 
+c. .. ... 
+" ("I • . .. 
+" "
+
+-14-
+Tank Mixtures for Wheat Sorghum Fallow 
+If weeds are present at time of application (in late July or 
+August following wheat harvest), Igran 4L may be tank mixed with 
+AAtrex to control existing annual weeds. Broadcast 1.6-2 qts. of 
+Igran 4L plus 6 pts. of AAtrex 4L (4LC) (or 3.75 Ibs. of AAtrex 
+BOI~, or 3.3 lbs. of AAtrex Nine-O) per acre. Add 1-2 pts. of a 
+nonionic surfactant (such as X-77) per 100 gals. of spray mix­
+ture. Add Igran 4L to the spray tank first and thoroughly mix 
+with the water. Then add the AAtrex, followed by the surfactant. 
+Use the 2 qt. rate of Igran 4L if weeds are 4-6 inches tall. 
+This mixture will not control weeds taller than 6 inches. Plant 
+sorghum into the wheat stubble the following spring with minlmum 
+dlsturbance of the SOlI. Use a surtace planter or a planter 
+leaving a shallow furrow. If weeds are present at the time of 
+sorghum planting, remove them with a sweep plow or other suitable 
+implement before planting. Refer to the AAtrex label for further 
+directions, precautions, and limitations. 
+Note: To avoid illegal residues, do not graze or feed forage 
+from treated areas. 
+Wheat-Corn-Fallow (Kansas and Nebraska): AAtrex 4L (4LC), AAtrex 
+BOW, or AAtrex Nine-O may be used to control annual weeds after 
+wheat harvest and in the following corn crop when grown under 
+minimum tillage. Refer to the AAtrex label for directions, pre­
+cautions, and limitations. 
+Tank Mixtures for Wheat-Corn-Fallow (Kansas and Nebraska) 
+If weeds are prese~t at time of application (in late July or 
+August following wheat harvest), Igran 4L may be tank mixed with 
+AAtrex and applied to control existing annual weedh. Follow 
+directions for use in the "Wheat-Sorghum-Fallow" section above, 
+substituting corn for referenc~s to sorghum. 
+Wheat-Fallow-Wheat (Colorado, Kansas. Montana. Nebraska, North ...... Dakota, South Dakota, and Wyoming): AAtrex 4L (4LC), AAtt~. 801'1., . : 
+or AAtrex Nlne-O may be used for preemergence control of ,illl'lual .,., .. 
+weeds during the fallow period of a wheat-fallow-wheat rotation ..... 
+If AAtrex is applied alone in late summer after wheat harvest, ' .. " , Igran 4L may be applied the following spring at 1.6-2 qqi./~ to ..... 
+.,.,. , 
+. 
+control escaping weeds. Add 1-2 pts. of a nonionic sur f<t(:'Caltt 
+(such as X-77) per 100 gals. of spray mixture. Use the 2 qt. 
+rate if weeds are 4-6 inches tall. Igran 4L will not contcal 
+weeds taller than 6 inches. To avoid crop injury or illeyul' :::::' 
+residues, treat wi th Igr'ln 4L only once dur ing the same f~.I:1IJw
+
+/ ,~-, r ) I 
+-15-
+period, and plant wheat no sooner than 4 months after application 
+of the Igran 4L alone and no sooner than 12 months after the 
+AAtrex application. Refer to the AAtrex label for directions, 
+precautions, and limitations. 
+Tank Mixtures for Wheat Fallow-Wheat (Colorado, Kansas, Montana, 
+Nebraska, North Dakota, South Dakota, and wyoming) 
+If weeds are present at time of application (normally in late 
+July or August following wheat harvest), Igran 4L may be tank 
+mixed with AAtrex to control existing annual weeds. Broadcast 
+1.6-2 qts. of Igran 4L plus 1-2 pts. of AAtrex 4L (4LC) (or 0.6-
+1.25 lbs. of AAtrex 80W, or 0.5-1.1 lbs. of AAtrex Nine-O) per 
+acre. Add 1-2 pts. of a nonionic surfactant (such as X-77) per 
+100 gals. of spray mixture. Add Igran 4L to the spray tank first 
+and thoroughly mix with the water. Then add the AAtrex, followed 
+by the surfactant. Use the 2 qt. rate of Igran 4L if weeds are 
+4-6 inches tall. This mixture will not control weeds taller than 
+6 inches. Treat with this tank mixture only once during the same 
+fallow period. Use tillage to control weeds which escape during 
+the fallow period. Plant wheat no sooner than 12 months after 
+application. Refer to the AAtrex label for further directiuns, 
+precautions, and limitations. 
+Note: To avoid illegal residues, do not feed forage or graze 
+treated areas to livestock for six months following application. 
+Wheat-Fallow-Wheat, Sorghum-Fallow-Wheat (Great Plains, including 
+Oklahoma, Northern Texas) 
+Apply Igran 4L preemergence or postemergence at 1.6-2 qts./A in 
+the spring at the start of the fallow period (as soon as possible 
+following harvest in a winter wheat-fallow-wheat rotation). Use 
+the higher rate when weeds are 4-6 inches tall. Igran 4L will 
+I 
+not control weeds taller than 6 inches. Postemergence weed con­
+trol is improved by adding a nonionic surfactant, such as X-77 a,t;"" 
+1-2 pts. per 1':'0 gals. of spray mixture, an emulsi fiable, tJ'i"I, at: ': 
+2-4 qts./A or an oil concentrate at 1-2 pts./A. Treat only'onca"", 
+during the fallow period, and do not plant wheat sooner than ',,' 
+4 months after appl ication (2 months in Kansas, Oklahoma, and "", , 
+northern Texas). Shallow cultivation or paraquat at 1-2,pt~./A '~'" 
+X-77 surfactant at 1-2 pts. per 100 gals. of spray solut!b'rt'lnay 
+be used to control weeds which escape or reinfest during the 
+fallow season. " , , . " . 
+Note: To avoid illegal residues, do not feed green forag~:~r. 
+graze treated areas for 6 months following application. " 
+"
+
+-16-
+Tank Mixtures for Wheat-Fallow-Wheat (Great Plains, including 
+Oklahoma," Northern Texas) 
+for control uf established weeds, tank mix 19ran 4L with one of 
+the following herbicides, or stubble plow to control large estab­
+lished weeds. The following tank mixes will not control weeds 
+taller than 6 inches. Use the higher rate of each product when 
+weeds are 4-6 inches tall. To avoid crop injury or illegal resi­
+dues, treat only once during the fallow period and do not plant 
+.,heat sooner than 4 months after application (2 months in Kansas, 
+Oklahoma, and northern Texas). Shallow cultivation may be used 
+to control weeds which escape during the fallow season. A non­
+ionic surfactant, such as X-77 at 1-2 pts. per 100 gals. of spray 
+mixture, should be added to each tank mix. 
+Note: To avoid illegal residues, do not feed green forage or 
+graze treated areas for 6 months following application. 
+Paraquat: Apply 1-2 pts./A of paraquat in tank mix with 1.6-2 
+qtS./A of 19ran 4L if weeds are present at application. Refer to 
+the paraquat label for further directions, precautions, and wheat 
+rotation restrictions. 
+2,4-0 [various labeled amine formulations): Apply 0.5-1 lb. 
+active ingredient per acre of 2,4-0 in tank mix with 1.6-2 qts./A 
+of 19ran 4L. Refer to the 2,4-0 labels for further directions, 
+precautions, and wheat rotation restrictions. 
+Bladex® BO\q: Apply 
+qts./A of 19ran 4L. 
+tions, precautions, 
+2 lbs./A of Bladex BOW in tank mix with 1.6-2 
+Refer to the Bladex lacel for further direc­
+and wheat rotation restrictions. 
+Sencor [SOWP, 4, OF) (Colorado, Kansas, Montana, Nebraska, 
+Wyoming only): Apply 0.5-0.67 lb./A of Sencor OF, 0.75-1 pt./A 
+of Sencor 4, or 0.75-1 Ib./A of Sencor SOWP in tank mix ~ith 
+1.6-2 qtS./A of 19ran 4L. To avoid crop injury or illegal resi­
+dues, do not plant wheat sooner than 4 months after application. 
+Refer to the Sencor labels for .further directions, precautions, 
+and wheat rotation restrictions. 
+" ............ .. .. 
+" 
+.., ........ . 
+" 
+". " 
+" .. " 
+" ..... . . , .. 
+" " .... " .. 
+!
+
+.' 
+-17-
+Igran 4L provides weed control on railroad rights-of-way and on 
+other noncrop land sites. 
+DO NOT USE THIS PRODUCT FOR NONSELECTIVE WEED CONTROL ON LAND TO 
+BE CROPPED, NEAR ADJACENT DESIRABLE TREES. SHRUBS, OR PLANTS, OR 
+IN GREENHO(SES, OR INJURY MAY OCCUR. 
+Apply Igran 4L to emerged actively growing weeds not more than 6 
+inches in h@ight at 2-2.4 qts.jA. Apply in at least 20 gals. of 
+water per acre. A surfactant such as X-77, duPont I'IK, or Tr:onic 
+may be added to the spray mixture at the rate of 2 qts./l00 gals. 
+of spray (0.5% of spray volume). Cover weeds thoroughly with 
+spr:ay for good control. For extended weed control, Igran 4L may 
+be applied in tank mix combination with Atr:atol® formulations 90 
+and 801'1. and Princep® formulations (4L, BOW, and Caliber® 90). 
+Refer tJ the Atratol and Princep labels for use instructions for 
+these pr:oducts. 
+Note: Agitate Igran and Igran tank mixtur:es during the tank 
+filling and spraying process. Empty the spray tank during the 
+spraying operation. 
+STORAGE AND DISPOSAL 
+Do not contaminate water, food, or feed by storage, disposal. 
+Pesticide: Pesticide wastes are toxic~ Improper disposal of 
+excess pesticide, spray mixture, 0< rinsate is a violation of 
+federal law. If these wastes cannot be disposed of by use 
+according to label instructions, contact your State Pesticide or 
+Environmental Control Agency, or the Hazardous Waste Representa­
+tive at the nearest EPA Regional Office for guidance. 
+Container: Triple rinse (or equivalent), or puncture and dispose 
+of in~anitary landfill, or by incineration, or by open burn-
+ing, if allowed by state and local authorities. If burned, keep ...... 
+out of smoke. 
+. .. ' 
+, ...... . . .... 
+••• ' t" 
+. .. "
+
+-18-
+For minor spills. leaks. etc., fOllow all precautions indicated 
+on this label and clean up immediately. Take special care to 
+avo!d contamination of equipment and facilities during cleanup 
+procedures and disposal of wastes. In the event of a major 
+spill, fire or other emergency, call (919)292-7100 day or night. 
+r
+-------· --------------------.------------------- -----
+~recautionary Statements 
+Hazards to Humans and Domestic Animals 
+CAUTION 
+Harmful if inhaled or absorbed through the skin. Causes 
+moderate eye irritation. Avoid contact with skin, eyes or 
+clothing. Avoid breathing vapor or spray mist. \~ash 
+thoroughly with soap and water after handling. Remove and 
+wash contaminated clothing before reuse. 
+Statement of Practical Treatment 
+If in Eyes: Immediately flush with plenty of water. Get 
+medical attention i{ irritation develops or persists. 
+If on Skin: Wash with plenty of soap and water. Get medical 
+attention if irritation develops or persists. 
+NOTE TO PHYSICIAN: There is no specific antidote for Igran 
+4L. If this product is ingested, induce emesis or lavage 
+stomach. The use of an aqueous slurry or activated charcoal 
+may be considered. 
+Environmental Hazards 
+Do not contall~nate domestic or irrigation water supplies, or 
+lakes, streams, or ponds. Do not apply directly to water or 
+wetlands. 
+"'" . . 
+Atratol® trademark of CIBA-GEIGY 
+AAtrex® trademark of CIBA-GEIGY for atrazine 
+Bladex® trademark of Shell Chemical Company for cyanazinc····· 
+Caliber® trademark of CIBA-GEIGY , .. 
+compex® trademark of KALO Agricultural Chemicals, Inc. 
+'. 
+'" .. , • 
+',.' . 
+"'" . , . 
+'." .. 
+' .. ,
+
+f1 i I ,) I 
+I 
+-19-
+Igran® trademark of CIBA-GEIGY for terbutryn 
+Maxx® trademark of CIBA-GEIGY 
+Milogard® trademark of CIBA-GEIGY for propazine 
+Nine-O® trademark of CIBA-GEIGY 
+Princep® trademark of CIBA-GEIGY for simazine 
+Unite® trademark of Hopkins Agricultural Chemical Com~any for 
+compatibility agent HA-914 
+X-77® trademark of KALO Agricultural Chemicals, Inc. 
+C1985 CIBA-GEIGY Corporation 
+Agricultural Division 
+CIBA-GEIGY Corporation 
+Greensboro, North Carolina 27419 
+., . 
+, , 
+...... 
+" . , 
+,~ .. 
+. ,
+
+-20-
+(Back Cover) 
+Igran® 4L 
+Herbicide 
+For weed control in grain sorghum and 
+noncrop land <~eas 
+Active Ingredients: 
+Terbutryn: 2-tert-butylamino-4-
+ethylamino-6-methyltllio-s-
+triazine .......•.•..•.• : ..•.......••.................... 
+Related compounds ......•......•••.•.•.................•. 
+Inert Ingredlents: 
+Total: 
+EPA Reg. No. 100-
+Igran 4L contains 4 lbs. active 
+ingredient per gal. 
+Keep Out of Reach of Children. 
+CAUTION 
+S~e additional precautionary statements 
+at end of label booklet. 
+See directions for use inside booklet. 
+2 1/7 Gallons 
+U.S. Standard Measure 
+CIBA-GEIGY 
+~1985 CIBA-GEIGY Corporation 
+Agricultural Division 
+CIBA-GEIGY Corporation 
+Greensboro, NC 27419 
+45.2% 
+2.4% 
+52.4% 
+100.0% 
+.. , , , 
+. , , 
+"
+
+-21-
+Precautionary Statements 
+Hazards to Humans and Domestic Animals 
+CAUTION 
+Harmful if inhaled or absorbed through the skin. Causes moderate 
+eye irritation. Avoid contact with skin, eyes or clothing. 
+Avoid breathing vapor or spray mist. Wash thoroughly with soap 
+and water after handling. Remove and ;:ash contaminated clothing 
+before reuse. 
+Statement of Practical Treatment 
+If in Eyes: Immediately flush with ple~ty of wate~. Get medic&l 
+attentlon if irritation develops or persists. 
+If on Skin: Wash with plenty of soap and water. 
+attentlon ~f irritation develops or persists. 
+Get medical 
+NOTE TO PHYSICIA~: There is no specific antidote for Igran 4L. 
+If this product is ingested, induce emesis or lavage stomach. 
+The use of an aqueous slurry o~ activated charcoal may bt 
+considered. 
+Environmental Hazards 
+Do not contaminate domestic or irrigation water supplies, or 
+lakes, streams, or ponds. Do not apply directly to water or 
+wetlands. 
+• • • 
+' .. • , . 
+, .. 
+, . , , . 
+. " .. • ' .. 
+••• • ••