SENCOR 480 SC SELECTIVE HERBICIDE — label 0405
Original approved APVMA PDF
Page 1
Product Name: SENCOR 480 SC SELECTIVE HERBICIDE
APVMA Approval No: 31791/129231
RLP
APPROVED
Label Name: SENCOR 480 SC SELECTIVE HERBICIDE
Signal Headings: POISON
KEEP OUT OF REACH OF CHILDREN
READ SAFETY DIRECTIONS BEFORE OPENING OR USING
Constituent 480 g/L METRIBUZIN
Statements:
Mode of Action:
GROUP 5 HERBICIDE
Statement of Claims: For selective weed control in various broadacre and vegetable crops as indicated in the
DIRECTIONS FOR USE table
Net Contents: 5 - 110 L
Restraints: This section contains file attachment.
Directions for Use: This section contains file attachment.
Other Limitations:
Withholding Periods: WITHHOLDING PERIODS
Harvest
Asparagus: DO NOT HARVEST FOR 7 DAYS AFTER APPLICATIONPage 2
Tomatoes: DO NOT HARVEST FOR 21 DAYS AFTER APPLICATION
Other crops: NOT REQUIRED WHEN USED AS DIRECTED
Grazing
All uses: DO NOT GRAZE OR CUT FOR STOCK FOOD FOR 14 DAYS AFTER
APPLICATION
Trade Advice: EXPORT OF TREATED PRODUCE
Growers should note that MRLs or import tolerances do not exist in all markets for edible
produce treated with Sencor 480 SC Selective Herbicide. If you are growing edible produce
for export, please check with Bayer Crop Science for the latest information on MRLs and
import tolerances before using Sencor 480 SC Selective Herbicide.
General Instructions: GENERAL INSTRUCTIONS
Sencor is effective against a range of broadleaf weeds and some grasses. Sencor is
absorbed by roots, shoots and leaves of weeds. It can therefore be applied before or
after weeds emerge depending on the tolerance of the crop being treated. For recently
introduced varieties DO NOT use Sencor unless it is ascertained that the variety to be
treated shows sufficient tolerance to the treatment under local climatic conditions.
Crop safety
The use of other herbicides and/or crop oils on broadleaf crops treated with Sencor may
cause severe damage.
Before using Sencor 480 SC on newly released crop varieties, confirm the variety
tolerance with the State Department of Agriculture, Agronomist or Bayer Crop Science
representative.
Mixing
Prior to pouring, shake container vigorously for at least 30 seconds, then add the required
quantity of Sencor to the required amount of water and stir. Rinse empty container with
water and pour into spray tank. Keep agitators in motion.
Application
General
Best results are obtained if treatment is made to moist soil and moisture is supplied by
rainfall or sprinkler irrigation (6-12 mm) within 2 weeks after application. If heavy rains occur
soon after application, injury to the crop may result.
Pre-emergence
Soil should preferably be moist to the surface and must not be cloddy or have residues of a
previous crop on the surface. It is better to delay pre-emergence spraying of loose or fluffy
soils until there is a good soil settling rain. Rain or irrigation soon after spraying is required
to activate Sencor.
Post-emergence
Post-emergence spraying will control young actively growing emerged weeds through
leaf uptake. Subsequent pre-emergence control of later germinating weeds requires rain
or irrigation after spraying. Crops may show slight chlorosis or necrosis after spraying.
Two sunny days before spraying enhances crop tolerance. Heavy rain (80-100 mm) after
spraying on deep sandy or friable well structured soils may leach Sencor beyond the root
zone thus reducing residual effect.
Ground spraying (all crops except pineapples)
Apply Sencor in a spray volume of 50-100 L/ha through a carefully calibrated boom spray
set at 200 to 300 kPa pressure (except for tomatoes in Qld only) fitted with fan nozzles.
Cone nozzles and other means of application are not recommended and should not
be used. When spraying avoid over-lapping and shut off spray booms while starting,
turning slowly and when stopped. Neglecting these procedures will cause higher rates of
application resulting in crop damage. Delay post-emergence spraying if rain is expected
within a few hours.Page 3
Ground spraying (pineapples only)
Apply Sencor in a spray volume of 2,000 to 3,000 L/ha. Use a nozzle size and operating
pressure that delivers a COARSE or larger droplet size category.
Aerial spraying (all crops except chickpeas, faba beans, pineapples)
Wind: Spray only in crosswinds, otherwise uneven coverage may result.
Spray drift may damage adjoining crops. Make sure that the wind is blowing away from
crops for which Sencor is not recommended.
Flying: Fly with the wheels 2 to 3 metres above the crop as "wheels on crop" spraying
causes uneven distribution. Track spacing must be uniform and suited to the type of aircraft
and crosswind speed.
Droplet size: For grasses and vertical weeds, use fine droplets. For horizontal weeds and
drift limitation, use droplets Medium or larger and increase volume.
Water volume: Use 20 to 30 L water/ha.
Compatibility
Sencor 480 SC is compatible with the insecticides Le-mat® on peas, Dominex® Duo and
Talstar® 100 EC. Sencor 480 SC is compatible with the herbicides Trifluralin, Glean®,
Ally®, Brodal® Options, Buctril® MA, Jaguar®, Simazine, Stomp®, Tigrex® and Yield®.
DO NOT mix concentrates together but add each to the spray tank separately. As
formulations of other manufacturers' products are beyond the control of Bayer CropScience
Pty Ltd, all mixtures should be tested prior to mixing commercial quantities. As changes
in climatic conditions can alter the sensitivity of plants to mixtures of sprays, Bayer
CropScience Pty Ltd cannot be responsible for the behaviour of such mixtures.
Resistance Warning: RESISTANT WEEDS WARNING GROUP 5 HERBICIDE
Sencor is a member of the triazinone group of herbicides and has the inhibitor of
photosynthesis at photosystem II mode of action. For weed resistance management the
product is a Group 5 herbicide. Some naturally-occurring weed biotypes resistant to the
product and other Group 5 herbicides may exist through normal genetic variability in any
weed population. The resistant individuals can eventually dominate the weed population if
these herbicides are used repeatedly. These resistant weeds will not be controlled by the
product or other Group 5 herbicides.
Annual ryegrass biotypes resistant to diclofop-methyl and other ‘grass specific’ herbicides
are often also resistant to Sencor 480 SC. Before using Sencor 480 SC on a population
resistant to ‘grass specific’ herbicides, have a resistance test conducted to ensure that it is
still susceptible to Sencor 480 SC.
Since the occurrence of resistant weeds is difficult to detect prior to use, Bayer
CropScience Pty Ltd accepts no liability for any losses that may result from the failure of the
product to control resistant weeds.
Large numbers of healthy surviving weeds can be an indication that resistance is
developing. Efforts should be made to prevent seed set of the survivors.
DO NOT make more than one application of a Group 5 herbicide to a crop in the same
season, either pre-sowing incorporated by sowing or post crop and weed emergence.
If the user suspects that a Group 5 resistant weed is present, Sencor 480 SC or other
Group 5 herbicides should not be used.
Strategies to minimise the risk of herbicide resistance are available. Consult your farm
chemical supplier, consultant, local Department of Agriculture or Primary Industries, or local
Bayer Crop Science representative.
Precautions: PRECAUTIONS
Re-entry
Asparagus
DO NOT enter treated areas and conduct hand-set irrigation activities for three days
following treatment, unless wearing cotton overalls buttoned to the neck and wrist (orPage 4
equivalent clothing) and chemical resistant gloves. Clothing must be laundered after each
day's use.
Protections: PROTECTION OF CROPS, NATIVE AND NON-TARGET PLANTS
Prevent drift of spray to sensitive plants. Keep from contact with fertilisers, insecticides,
fungicides and seeds. Thoroughly clean all traces of Sencor from application equipment
immediately after use. To minimise risk to follow-on sensitive crops such as beetroot,
brassicas, capsicums, cotton, cucurbits, lettuce, onions and sunflowers, it is advisable
to work land thoroughly - allow at least 6 months (12 months for cucurbits) between
application of Sencor 480 SC and sowing seed of these sensitive crops. A longer period
may be required following long dry periods between crops. If rates of Sencor 480 SC higher
than 1.5 L/ha were used, allow at least 12 months before planting these crops. The use of
other herbicides and/or crop oils on broadleaf crops treated with Sencor 480 SC may cause
severe damage.
DO NOT apply under weather conditions, or from spraying equipment, that may cause
spray to drift onto nearby susceptible plants/crops, cropping lands or pastures.
PROTECTION OF WILDLIFE, FISH, CRUSTACEANS AND ENVIRONMENT
Very toxic to aquatic life. DO NOT contaminate wetlands or watercourses with this product
or used containers.
Pineapples
Harmful to birds. DO NOT use on sites where vulnerable, threatened, endangered or
critically endangered birds are known to occur
Storage and STORAGE AND DISPOSAL
Disposal: Store in the closed, original container in a cool, well-ventilated area. Do not store for
prolonged periods in direct sunlight.
(Drummuster/not re-usable packs)
Triple rinse containers before disposal. Add rinsings to spray tank. DO NOT dispose
of undiluted chemicals on site. If recycling, replace caps and return clean containers to
recycler or designated collection point. If not recycling, break, crush, or puncture and
deliver empty packaging to an approved waste management facility. If an approved waste
management facility is not available, bury the empty packaging 500 mm below the surface
in a disposal pit specifically marked and set up for this purpose, clear of waterways,
desirable vegetation and tree roots, in compliance with relevant Local, State or Territory
government regulations. DO NOT burn empty containers or product. Do not re-use empty
containers for any other purpose.
(Schutz/returnable/re-usable packs)
If tamper evident seals are broken prior to initial use then the integrity of the contents
cannot be assured. Empty container by pumping through the dry-break connection system.
Do not attempt to unscrew the valve or breach the locked filling point. Do not contaminate
the container with water or other foreign material. Ensure that the coupler, pump, meter and
hoses are disconnected, triple rinsed with clean water and drained after each use. Contact
point of purchase to arrange return or collection of empty containers. This container
remains the property of Bayer CropScience Pty Ltd.
Safety Directions: SAFETY DIRECTIONS
Harmful if inhaled or swallowed. May irritate the eyes and nose and throat and skin. Do not
inhale vapour or spray mist. Avoid contact with eyes and skin. When opening the container
and preparing spray, wear cotton overalls buttoned to the neck and wrist (or equivalent
clothing) and elbow-length chemical resistant gloves. Wash hands after use. After each
day’s use, wash gloves and contaminated clothing.Page 5
First Aid Instructions: FIRST AID
If poisoning occurs, contact a doctor or Poisons Information Centre (phone Australia 13 11
26).
First Aid Warnings:Page 6
RESTRAINTS
DO NOT apply until soil is well wetted by the first good soil settling rain after sowing.
DO NOT spray plants under stress from drought, waterlogging, frost or disease.
DO NOT allow spray mix to stand overnight.
DO NOT apply if heavy rains or storms are forecast within 3 days.
DO NOT irrigate to the point of water runoff from the treatment area for at least 3 days after
application.
DO NOT apply by aircraft to chickpeas, faba beans or pineapples.
DO NOT use open mixing/loading when pouring large quantities for aerial spraying equipment,
use closed mixing/loading equipment and wear elbow-length chemical resistant gloves.
SPRAY DRIFT RESTRAINTS
Specific definitions for terms used in this section of the label can be found at
apvma.gov.au/spraydrift.
DO NOT allow bystanders to come into contact with the spray cloud.
DO NOT apply in a manner that may cause an unacceptable impact to native vegetation, agricultural
crops, landscaped gardens and aquaculture production, or cause contamination of plant or livestock
commodities, outside the application site from spray drift. The buffer zones in the relevant buffer
zone table/s below provide guidance but may not be sufficient in all situations. Wherever possible,
correctly use application equipment designed to reduce spray drift and apply when the wind
direction is away from these sensitive areas.
DO NOT apply unless the wind speed is between three and 20 kilometres per hour at the application
site during the time of application.
DO NOT apply if there are hazardous surface temperature inversion conditions present at the
application site during the time of application. Surface temperature inversion conditions exist most
evenings one to two hours before sunset and persist until one to two hours after sunrise.
DO NOT apply by a vertical sprayer.
DO NOT apply by a boom sprayer unless the following requirements are met:
spray droplets not smaller than a COARSE spray droplet size category in pineapplePage 7
minimum distances between the application site and downwind sensitive areas (see
‘Mandatory buffer zones’ section of the following table titled ‘Buffer zones for boom
sprayers’) are observed
Buffer zones for boom sprayers
Application rate Boom height Mandatory downwind buffer zones
above the
target canopy Natural Bystander Vegetation
aquatic areas Areas areas
Greater than 750 0.5 m or lower 0m 0m 0m
mL/ha
1.0 m or lower 0m 20 m 0m
DO NOT apply by aircraft unless the following requirements are met:
spray droplets not smaller than a FINE spray droplet size category
for maximum release heights above the target canopy of 3m or 25% of wingspan or 25% of
rotor diameter whichever is the greatest, minimum distances between the application site
and downwind sensitive areas (see ‘Buffer zones’ section of the following table titled ‘Buffer
zones for aircraft’) are observed.
Buffer zones for aerial applications
Application rate Mandatory downwind buffer zones
Natural Bystander Vegetation
aquatic areas Areas areas
All application 0m 55 m 0m
ratesPage 8
DIRECTIONS FOR USE
CROP/ WEEDS STATE RATE CRITICAL COMMENTS
SITUATION
Asparagus False castor oil Qld, NSW, 1.1 or 2.2 L/ha Direct seeded asparagus
(thornapples), ACT, Vic, Apply to moist soil as soon as possible after sowing before
shepherd's purse, fat hen Tas, SA only crop emerges and overhead irrigate. A follow up application
may be required 4-8 weeks later for emerged weeds. DO NOT
Winter weed control: WA only 0.8 or 1.5 L/ha spray until asparagus seedlings are at least 4 cm high. Some
Chickweed, shepherd's temporary burning may occur. Use the higher rate on heavier
purse, nettle, deadnettle soils.
Spring and summer weed Seedling asparagus (transplanted)
control: DO NOT spray before asparagus seedlings are 4 cm high and
False castor oil seedlings have been well established after transplanting.
(thornapples), Spray when weeds have emerged when young and actively
shepherd's purse, fat hen growing. Use the higher rate on older weeds.
Established asparagus in beds
Apply immediately after transplanting crowns or preparing
beds for cutting and before spears emerge, or after cutting for
the season is finished. Overhead irrigate within a few days
after spraying. Use the higher rate on heavier soils.Page 9
CROP/ WEEDS STATE RATE CRITICAL COMMENTS
SITUATION
Barley Controlled: seedlings of: Vic, Tas, SA 280 mL/ha DO NOT spray before barley is at 3 leaf stage or later than 8
capeweed, catsear, only (Light sandy weeks after sowing.
Post-emergent charlock, chickweed, soils i.e. sandy
application common cotula, corn loam to loamy Application of this product on alkaline sandy soils (pH greater
gromwell (sheepweed, sands) than 7) will result in severe crop damage.
white ironweed), corn
spurry, creeping speedwell, 435 mL/ha In Tasmania, DO NOT use Sencor on barley grown on sandy
crown beard (dogweed), (Medium soils, soils.
deadnettle, dock, fat hen, loams. Silt plus
field madder, fumitory, clay content 40 For effective wild radish, wireweed and ryegrass control, the
hare's ear (treacle to 60%) weed must have emerged before Sencor application.
mustard), heliotrope,
hogweed (wireweed), 580 mL/ha Wireweed in the cotyledon stage and annual ryegrass with no
horehound, Indian hedge (Heavy soils, more than 2 leaves can be controlled provided rain follows
mustard, lesser clay loams. Silt within a few days of spraying. Emerged weeds must be young
swinecress, mouse-ear plus clay and actively growing.
chickweed, mountain sorrel content over
(purple calandrinia), rough 60%)
poppy, scarlet pimpernel,
scrub nettle (stinging
nettle), shepherd's purse,
sorrel, sowthistle, spiny
emex (threecornered
jacks), storksbill, toad rush,
wild radish, wild turnip,
winter grass, yellow
burrweed
Suppressed: Annual
ryegrass, sub clover
Buxbaum's speedwell, Tas only
Powell's amaranth, stagger
weed, sun spurge, great
brome
Buchan weed, fog grass SA only
Toad rush NSW, ACT, 150 mL/ha Toad rush should be sprayed at the 2-4 leaf stage for optimum
Vic, SA only control. Spray after rain when soil moisture is plentiful and soil
is moist to the surface. Take advantage of dew on soil surface.Page 10
CROP/ WEEDS STATE RATE CRITICAL COMMENTS
SITUATION
Barley Capeweed, doublegee, WA – Great 210 – 235 1. Correct application and incorporation techniques are
(except Morrell and geranium, mustard, toad Northern mL/ha critical to obtain optimum performance of Sencor and
Harrington) rush, turnip, wild radish, region only + trifluralin mixtures. ENSURE all recommendations on the
wireweed 1 L/ha trifluralin trifluralin label are followed.
Pre-sowing or 2. Use the lower rate in lighter soils, and the higher rate in
incorporated by Suppressed: heavier soils.
sowing Annual ryegrass, barley 3. Application of this product on alkaline sandy soils (pH
grass, brome grass greater than 7) will result in severe crop damage.
4. Apply to moist soil for best efficacy.
5. Seed below herbicide band at 5 cm.
6. Reduced control may occur under high weed burdens (>
100/m2).
7. The performance of Sencor and trifluralin mixtures in terms
of crop tolerance and weed control may vary according to
climate, soil and crop conditions. This treatment should
only be used where no alternatives are available.
Chickpeas Controlled: as per Barley Southern 280 mL/ha ONLY apply post sowing, pre-emergence. Crops should be
(Vic, SA, Tas) NSW, ACT, (Light sandy sown at least 5 cm deep.
Vic, SA, WA soils i.e. sandy
Buchan weed, fog grass only loam to loamy DO NOT apply post-emergence, as crop injury will occur.
Faba beans (SA only) NSW, ACT, sands)
Vic, SA, WA DO NOT apply to chickpeas grown on sandy soils, i.e. silt plus
Suppressed: Sub clover only 435 mL/ha clay less than 40%.
Lentils Vic, SA, WA (Medium soils,
only loams. Silt plus The vigour of lentils may be reduced, especially if heavy rain
clay content 40 falls after spraying.
to 60%)
Weeds should be from pre-emergence to 3 leaf stage except
580 mL/ha wireweed (hogweed) which should not be beyond the
(Heavy soils, cotyledon stage. Best results for grass and wireweed control
clay loams. Silt are obtained when rain or irrigation follows within a few days
plus clay of spraying.
content over
60%) DO NOT apply by aircraft to chickpeas and faba beans.Page 11
CROP/ WEEDS STATE RATE CRITICAL COMMENTS
SITUATION
Lupins For control of wild radish WA – Great 160 to 235 1. Sencor should only be used following a pre-sowing
(except Danja, Kiev up to 250 mm diameter. Northern mL/ha plus treatment of Simazine.
Mutant, Tanjil, region ONLY 100 mL Brodal 2. DO NOT apply to alkaline soils with pH > 7.
Wonga, Belara, For suppression of Options 3. Apply to actively growing lupins from the 3-4 leaf stage
Chitick, Moonah, capeweed, doublegee, and onwards.
Quilinock, Woodjil larger wild radish. Use 4. DO NOT apply to weeds or crops which are under stress.
or Albus lupins) higher rate for larger 5. Apply to moist soil for best efficacy.
weeds. 6. Use higher rates for heavy weed burden and larger weed
size. Apply before weeds are covered by crop canopy.
7. Best results are obtained if good soil moisture exists at,
and received soon after application.
8. DO NOT apply wetting agents, spray oils or grass
selective herbicides with the Sencor + Brodal Options
mixture.
9. Transient crop yellowing and burning may become evident
after application. This effect is short term and will not
normally reduce lupin yield.
10. Refer to Critical Comments section on the Brodal Options
label.
IMPORTANT
The performance of Sencor in terms of crop tolerance and
weed control may vary with varying climate, soil and crop
conditions. This treatment should only be used where no
alternatives are available.
Oats Toad rush Vic only 150 mL/ha Toad rush should be sprayed at the 2-4 leaf stage for optimum
control. Spray after rain when soil moisture is plentiful and soil
is moist to the surface. Take advantage of dew on soil
surface.Page 12
CROP/ WEEDS STATE RATE CRITICAL COMMENTS
SITUATION
Peas (field, Controlled: as per Barley Qld, NSW, 280 mL/ha Pea crops should be sprayed pre-emergence or early post-
processing, green) (Vic, SA, Tas) ACT, Vic, (Light sandy emergence of crop and/or weeds, but within 6 weeks after
Tas, SA only soils i.e. sandy sowing (and not later than 8 weeks in Victorian winter crops).
DO NOT use on Suppressed: Annual loam to loamy Peas must not be beyond the 3 node stage.
Laura, Pennant or ryegrass, sub clover sands)
White Brunswick Buxbaum's speedwell, Tas only DO NOT treat peas post-emergence in areas or soils where
varieties Powell's amaranth, stagger 435 mL/ha collar rot, stem rot or black spot are present or are likely to
weed, sun spurge (Medium soils, occur.
Buchan weed, fog grass SA only loams. Silt plus
clay content 40 In Tasmania, DO NOT use Sencor on field peas grown on light
to 60%) sandy soils.
580 mL/ha DO NOT spray Cressy Blue peas post-emergence. Some
(Heavy soils, other varieties, e.g. Dundale and Wirrega, may be especially
clay loams. Silt sensitive to Sencor. DO NOT use on a large scale unless it
plus clay has been ascertained that the variety shows sufficient
content over tolerance under local conditions
60%)
For effective wild radish, wireweed and ryegrass control, the
730 mL/ha weed must have emerged before Sencor application.
(Koo-wee-rup
swamp and Wireweed in the cotyledon stage and annual ryegrass with no
volcanic soils) more than 2 leaves can be controlled provided rain follows
within a few days of spraying. Emerged weeds must be young
and actively growing.Page 13
CROP/ WEEDS STATE RATE CRITICAL COMMENTS
SITUATION
Pigeon peas Apple of Peru, bladder Qld, NSW, 750 mL/ha Rain grown and overhead irrigated crops: Apply
ketmia, gooseberry, ACT only - immediately after or within a day or two after sowing before
Noogoora burr, cowvine except sandy crops emerge then irrigate. Otherwise rain after spraying
(peach vine), volunteer soils before weeds emerge is necessary to get useful weed control.
cotton, yellow vine, false The longer the time interval between spraying and rain or
castor oil (thornapples) irrigation the less the effectiveness of the herbicide. Sencor
can be applied to a band centred on crop rows for in-row weed
control.
Untreated soil between treated bands thrown onto treated
areas during subsequent cultivation will reduce weed control
along rows. Sencor can be applied after pre-sowing trifluralin
treatment. Avoid leaving a depression over the row during
planting to enhance crop tolerance.
Furrow irrigated crops: Apply after furrowing out and within
two weeks before sowing and incorporate with Lillistone
cultivators to finely tilled soil free of emerged weeds. Where
grass weeds are expected, add trifluralin at the rate
recommended by the manufacturer for the soil type. For post-
emergence weed control: Apply when weeds are in the young
seedling stage and actively growing, provided crop plants
have at least 2-trifoliate leaves. DO NOT spray if rain is likely
to fall within several hours. Transitory damage may occur to
the pigeon pea crop but yields will not be significantly affected.Page 14
CROP/ WEEDS STATE RATE CRITICAL COMMENTS
SITUATION
Pineapples Amaranth, apple of Peru, Qld, NT only 1.6 L/ha Plant crop: Apply a single broadcast spray prior to weed
awnless barnyard grass, emergence immediately after planting (within 0-15 days) and
balloon cotton bush, black before planting material begins to grow roots or new leaves.
pigweed, bluetop, caltrop,
coastal button grass, Ratoon crop: Apply as a single directed or broadcast spray
cobbler’s peg, within 30 days of the plant crop harvest maximizing contact of
crowsfoot grass, fat hen, the herbicide with the soil. Do not apply if the ratoon crop
gooseberry, green panic, contains a high percentage of suckers or slips/buttons.
green summer grass,
guinea grass, Ipomoea spp. DO NOT apply more than one application in the plant or
(bellvine, convolvulus, Star ratoon crop.
of Bethlehem), needle burr,
Noogoora burr, paspalum, DO NOT apply by aircraft to pineapples.
phasey bean, pigweed,
potato weed, round-leaf Do not disturb the soil surface after application.
cassia, shepherd’s purse,
sowthistle, summer grass, Soil should be preferably be slightly moist at application.
thick head Incorporation by rain or irrigation within 7 days after application
is necessary for best results
Sencor can be used alone or in mixtures with other residual
herbicides, e.g. Balance® 750 WG Herbicide in the plant crop.
Control of difficult weeds species can be improved with tank
mixtures.Page 15
CROP/ WEEDS STATE RATE CRITICAL COMMENTS
SITUATION
Potatoes Controlled: as per All States 730 mL/ha Spray when potatoes are emerging with the largest shoots not
Some varieties Barley (Vic, SA, Tas) or more than 10 cm tall. Use higher rate for emerging summer
such as Atlantic 1.1 L/ha grasses.
and red skin Suppressed: Annual
varieties are ryegrass, dock, sub In summer crops on soils which dry rapidly on the surface, the
especially sensitive clover, summer young actively growing weeds will be killed but residual effect may
to Sencor. grasses be reduced. If there is a subsequent germination of weeds apply a
Damage may occur (Digitaria spp.) second spray at 730 mL/ha (except NSW).
even at the lowest
label rate. DO NOT use Sencor in Western Australia in the Perth metropolitan
area; on the south west winter potato crops; or on Delaware
DO NOT use on potatoes on light soils.
Kurell or Bison Vic - Bellarine 430 to 580 Potatoes may be hilled before or after spraying Sencor. If hilled
potatoes. Peninsula only mL/ha after spraying a good rain or irrigation is desirable between
(winter) spraying and hilling. No other cultivation should be necessary. Use
higher rate for emerging summer grasses.
Qld - Atherton 730 mL/ha for Hill up the crop soon after planting. Irrigate to allow weed seeds to
Tableland only winter crops germinate and potatoes to begin emerging. Apply as an overall
spray to a soil moist to the surface, before all the crop has
1.45 L/ha for emerged.
summer crops
Soybeans in soils Apple of Peru, NSW - clay 750 mL/ha Rain grown and overhead irrigated crops: Apply immediately
of pH 9 or lower bladder ketmia, soils in NW after or within a day or two after sowing before crops emerge then
cowvine (peach vine), only, irrigate. Otherwise rain after spraying before weeds emerge is
DO NOT use on gooseberry, necessary to get useful weed control. The longer the time interval
Cannapolis, Hill, Noogoora burr, Qld - clay soils between spraying and rain or irrigation the less the effectiveness of
Semstar or Triton volunteer cotton on Darling the herbicide. Sencor can be applied to a band centred on crop
varieties Downs only rows for in-row weed control.
Untreated soil between treated bands thrown onto treated areas
during subsequent cultivation will reduce weed control along rows.
Sencor can be applied after pre-sowing trifluralin treatment. Avoid
leaving a depression over the row during planting to enhance crop
tolerance.
Furrow irrigated crops: Apply after furrowing out and within two
weeks before sowing and incorporate with Lillistone cultivators to
finely tilled soil free of emerged weeds. Where grass weeds are
expected, add trifluralin at the rate recommended by the
manufacturer for the soil type. DO NOT use on cv Triton as crop
damage may occur.Page 16
CROP/ WEEDS STATE RATE CRITICAL COMMENTS
SITUATION
Tomatoes Controlled: As per Qld, NT only 1.45 L/ha Apply in a 1 metre wide band centred on the inter-row either during
Barley (Vic, SA, Tas) (15 mL/100 m or shortly after the formation of the final irrigation furrow. Apply to
plus barnyard grass, of row) soil moist to the surface.
bull's head, crowsfoot
grass, nightshade, Apply through applicators fitted with flat fan nozzles and operated
pigweed, black at pressures not exceeding 200 kPa to avoid misting and spray
pigweed, summer drift.
grass, green summer
grass DO NOT follow autumn plantings of tomatoes with cucurbits or
capsicums in the same season.
Transplanted Apple of Peru, potato NSW, ACT 750 mL - 1.2 Apply as a directed spray to weeds at the base of tomato plants.
tomatoes weed only L/ha Use the lower rate when tomatoes have 4-5 expanded leaves or
the higher rate when tomatoes beyond this stage and weeds are
well established.
Accurately calibrated spray equipment, fitted with one flat fan 80°
even spray Teejet nozzle operated to deliver 100 to 200 L of spray
per hectare and angled to avoid tomato leaves should be used.
DO NOT apply during or soon after prolonged periods of overcast
or cloudy weather. Allow at least two fine, sunny days before
spraying. Spray on a sunny fine day. Suppression of other
broadleaf weeds such as false castor oil may occur.
Vetch Controlled: as per Vic, SA, WA 280 mL/ha Crop: Only apply post sowing pre-emergence. Crop should be
Barley (Vic, SA, Tas) only (Light sandy sown at least 5 cm deep. The vigour of vetch may be reduced,
soils i.e. sandy especially if heavy rain falls after spraying.
loam to loamy Do not apply post-emergence, as crop injury will result.
sands)
Weeds: Weeds should be from pre-emergence to 3 leaf stage
435 mL/ha except wireweed (hogweed) which should not be beyond the
(Medium soils, cotyledon stage. Best results for grass and wireweed control are
loams. Silt plus obtained when rain or irrigation follows within a few days of
clay content spraying.
40 to 60%)
580 mL/ha
(Heavy soils,
clay loams. Silt
plus clay
content over
60%)Page 17
CROP/ WEEDS STATE RATE CRITICAL COMMENTS
SITUATION
Wheat Toad rush NSW, ACT, 150 mL/ha Toad rush should be sprayed at the 2-4 leaf stage for optimum
Post-emergent Vic, SA only control. Spray after rain when soil moisture is plentiful and soil is
application only moist to the surface. Take advantage of dew on soil surface.
Wheat Capeweed, common WA – Great 310 mL/ha 1. Sencor 480 SC has increased crop safety and gives more
(Blade & Eagle cotula, doublegee, Northern reliable weed control when incorporated by sowing and trailing
Rock only) fumitory, Indian hedge region only harrows.
mustard, toad rush, 2. DO NOT apply to alkaline soils with pH > 7.
Pre-sowing or wild turnip, wild radish, Sandy – sandy 3. Apply to moist soil for best efficacy.
incorporated by wireweed loam soils 4. Seed below herbicide band at 5 cm.
sowing 5. Reduced control may occur under high weed burdens (>
Suppressed: 100/m2).
Brome grass (Bromus 6. To improve control of annual ryegrass and barley grass add
diandrus & B. rigidus) trifluralin at 1 L/ha.
Annual ryegrass, 310 mL/ha 7. Ensure Sencor 480 SC is fully dispersed in the boom spray tank
barley grass, geranium + prior to trifluralin addition.
1 L/ha 8. The performance of Sencor and trifluralin mixtures in terms of
trifluralin crop tolerance and weed control may vary according to climate,
soil and crop conditions. This treatment should only be used
where no alternatives are available.
9. Refer to the Application section of this and the trifluralin label for
complete instructions on product use.
White lupins Buchan weed, Tas only 625 mL/ha Spring application. Apply after sowing but before crop emerges.
capeweed, charlock,
chickweed, deadnettle
(Lamium spp.) fat hen,
fumitory (common and
wall fumitory – Tas),
wireweed (hogweed),
lesser swinecress,
purple calandrinia,
scarlet pimpernel,
spiny emex, corn
spurry (spurry - Tas),
stinging nettle (dwarf
nettle - Tas), toad
rush, winter grass,
heliotrope, wild oats,
wild radish, wild turnip
Suppression only:
Sub clover and docks
(broadleaf dock - Tas)Page 18
NOT TO BE USED FOR ANY PURPOSE, OR IN ANY MANNER, CONTRARY TO THIS LABEL UNLESS AUTHORISED UNDER APPROPRIATE
LEGISLATION