Basta

Manufacturer
BAYER
Category
Herbicides
Registered until
2024-06-30
Registration number
39118
Active materials
Links

GROUP N HERBICIDE

For non-residual control of broadleaf and grass weeds in various situations as specified in the DIRECTIONS FOR USE table

GENERAL INSTRUCTIONS
Basta is a non-volatile herbicide with non-selective activity against many annual and perennial broadleaf weeds and grasses. Basta is absorbed by plant foliage and green stems. It is not significantly translocated as an active herbicide throughout the  plant, and therefore will only kill that part of a green plant that is contacted by spray. Basta does not provide residual weed  control. Visible symptoms of control appear in 3 to 7 days, but complete desiccation may take 20 to 30 days under cool  conditions. Best results are achieved when application is made under good growing conditions. Application to weeds under stress (e.g. due to continuous severe frosts, dry or waterlogged conditions) should be avoided.

Soil fumigation / sterilisation
Basta is metabolised (broken down) by microorganisms in the soil to become inactive. Soil fumigation or sterilisation will reduce the number of microorganisms present, thus slowing the breakdown of Basta. As damage to transplants or seedlings may occur, it is not advisable to apply Basta in conjunction with soil fumigation or sterilisation.

Plastic mulches
Basta will remain active on inert surfaces such as plastic. Special care should be taken when applying Basta over plastic mulches, as plant contact with the mulch after spraying may result in crop damage.

Export of Treated Produce
Growers should note that suitable MRLs or import tolerances may not be established in all markets for produce treated with Basta Non-Selective Herbicide. If you are growing produce for export, please check with Bayer CropScience Pty Ltd for the latest information on MRLs and import tolerances BEFORE using Basta Non-Selective Herbicide.

Resistant Weeds Warning
Basta Non-Selective Herbicide is a member of the phosphinic acid group of herbicides. Basta is an inhibitor of glutamine  synthetase. For weed resistance management Basta is a Group N herbicide. Some naturally occurring weed biotypes resistant to Basta and other Group N 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 Basta or other Group N herbicides. Since 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 Basta to control resistant weeds.

Compatibility
Basta is compatible with most residual herbicides e.g. simazine, diuron, oxyfluorfen (Goal®), norfluazuron (Solicam®) and oryzalin (Surflan®), and with glyphosate and metsulfuron-methyl. The addition of a wetting agent or other adjuvant is  generally not considered necessary, with the exception of the required addition of an adjuvant to assist in control of Pinus spp. (refer to the Directions for Use table). However, benefit has been obtained using a wetting agent or adjuvant on hard-to-wet weeds when using water rates in excess of 500 L/ha. The rate is 25 mL/100 L of a 1000 g/L non-ionic wetting agent, or equivalent. For further information on suitable adjuvants, and compatibility with insecticides and other herbicides contact your local Bayer CropScience representative.

Mixing
Basta mixes easily with water. Clean water should always be used for mixing with Basta. Ensure that the spray tank is free of any residues of previous spray materials.
Two-thirds fill the spray tank with clean water, and with agitator operating add the required amount of Basta. Add other relevant compatible products. Top the tank up to the required volume with clean water with agitator running.

Application
A. Orchards, plantations, vineyards, sugarcane and other row crops
and
B. Commercial, industrial, non-agricultural areas, fencelines in agricultural areas and forestry plantations
Apply by ground spraying equipment only. Aim to apply a thorough and even coverage of spray to the target plant. Dense stands of weeds should be thoroughly wetted with spray. Incomplete coverage may result in poor control. Equipment set-up should be such that adequate coverage, penetration and volume of spray liquid can be achieved while the potential for off-target movement is minimised.
Boom, Shielded/Hooded or Directed Sprayer Equipment
Basta should be applied at label rates (refer to specific column in the list of weeds controlled) in sufficient water to give thorough coverage of weeds. It has been found that 300 to 500 L/ha has given good results under most weed conditions.
Special care must be taken when using sprayer/slasher combination units not to cause dust and turbulence, which can carry spray into non-target areas.
For use in sugarcane, shielded or hooded sprayers should be set up in such a way to ensure that no spray intercepts susceptible parts of the crop being sprayed, but provides good coverage of weeds. Directed spraying equipment should be set up in such a way that practically no spray intercepts susceptible parts of the crop being sprayed, but provides good coverage of weeds.
Knapsack and Handgun Equipment
Basta should be applied at label rates (refer to specific columns in the list of weeds controlled) in adequate water to thoroughly wet the weeds being sprayed, i.e. 500 to 1000 L/ha. Dense stands will require up to 1000 L/ha of spray mixture, whereas less dense stands will require less water. High volume application using hollow-cone nozzles for hand spraying is recommended.
Controlled Droplet Application (CDA) Equipment
Basta may be applied through CDA row spraying equipment fitted with a solid (impermeable) shroud or skirt, at rates as recommended for boom or directed sprayers (refer to specific column in the list of weeds controlled), provided thorough spray coverage of weeds can be achieved. Apply preferably when weeds are less than 15 cm in height, with the equipment set up so that the spray dome only just touches the tops of the weeds. A total spray volume of 20 to 30 L/ha has been found to give good results. Do not mix residual herbicides or any spray adjuvants with Basta when using CDA equipment.
Warning: Because the spray solution is highly concentrated particular care must be taken when using Basta through CDA equipment to avoid contact of the spray solution with any part of the crop trunk or canopy. DO NOT apply Basta through equipment fitted with bristle skirts. Particular care should be taken when using CDA equipment around green or uncalloused bark. Please refer to PROTECTION OF CROPS, NATIVE AND OTHER NON-TARGET PLANTS. CDA equipment must not be used for application in cherry orchards.
C. Summer fallow situations
Apply by ground spraying equipment only. Aim to apply a thorough and even coverage of spray to the target weed. Incomplete coverage may result in poor control. Equipment set-up should be such that adequate coverage, penetration and volume of spray liquid can be achieved while the potential for off-target movement is minimised.
Basta should be applied at the recommended rate in sufficient water to give thorough coverage of weeds. Application volumes of at least 100 L /ha through nozzles that will deliver a MEDIUM spray droplet as defined by ASABE S572 Standard or BCPC Guideline are recommended.

Sprayer cleanup
Clean all equipment after use by thoroughly flushing with water.

DIRECTIONS FOR USE
RESTRAINTS

DO NOT apply with aircraft.
DO NOT apply when rain is expected within 6 hours.
DO NOT apply to weeds under stress due to, for example, very dry, very wet, frosty or diseased conditions.
SUGARCANE
DO NOT apply in areas where slope exceeds 4%.

BLACKBERRY, BOYSENBERRY, LOGANBERRY, RASPBERRY
Weeds: Primocane and sucker control
State: NSW, ACT, Vic, Tas only
Rate: 500 mL /100 L water
WHP: Nil (H) 8 weeks (G)
Critical comments: Apply as a directed spray to suckers and primocanes. Contact with flowers, developing fruit or  desirable foliage will cause damage. Ensure complete coverage of primocanes/suckers by spraying to the point of runoff,  preferably when they are less than 15 cm high. A non-ionic wetting agent (1000 g/L) may be added at a rate of 25 mL/100 L or equivalent.

Annual weeds: Amaranthus spp.; Apple of Peru; Argentine peppercress; Awnless barnyard grass; Barley grass; Barnyard grass; Bell vine; Billy goat weed; Bitter cress; Black bindweed (buckwheat); Bladder ketmia; Bordered panic; Brome grasses; Calopo; Caltrop burr; Cape weed; Clover (subterranean); Cobbler’s peg; Common morning glory; Common storksbill; Crowsfoot grass; Dead nettle; Dwarf crumbweed; Fat hen; Flax-leaf fleabane; Fumitory; Green crumbweed; Lesser canary grass;Liverseed grass; Medics (annual); Milk thistle; Mint weed; New Zealand spinach; Patterson’s curse; Peanuts; Pigweed; Pinkburr; Potato weed; Prairie grass; Prickly lettuce; Red natal grass; Ryegrass (annual); Saffron thistle; St. Barnaby’s thistle; Sago weed; Scarlet pimpernel; Setaria; Sheep thistle; Silver grass; Sorghum/sudax; Square weed; Stagger weed; Star of Bethlehem; Summer grass; Thickhead; Three cornered jack; Tomato; Townsville stylo; Turnip weed; Variegated thistle; Wheat; Wild carrot; Wild gooseberry; Wild mustard; Wild oats; Wild radish; Wireweed.

Perennial weeds: Blady grass; Cape tulip; Centro; Clover glycine; Couch grass; Cow pea; Giant sensitive plant; Greenleaf desmodium; Johnson grass; Panicum spp.; Paspalum spp.; Perennial bindweed; Shamrock; Sida weed; Silver leaf desmodium; Siratro; Stink grass; White clover; White eye; Willow herb.

AVOCADO, BANANA, FEIJOA, GUAVA, KIWIFRUIT, LITCHI, MANGO, PAWPAW, PASSIONFRUIT, PINEAPPLE, RAMBUTAN PLANTATIONS
State:
Qld, NSW, ACT, Vic, SA, WA, NT only
Rate: 1.0 to 5.0 L/ha
WHP: Nil (H) 8 weeks (G)

CITRUS ORCHADS
State:
All States
Rate: 1.0 to 5.0 L/ha
WHP: Nil (H) 8 weeks (G)

OLIVE PLANTATIONS
State:
All States
Rate: 1.0 to 5.0 L/ha
WHP: Nil (H) 8 weeks (G)

Critical comments: Apply as a directed or shielded spray. Refer to the label section Application for specific information on application methods.
Warnings: Do not allow spray or spray drift to contact desirable foliage or green (uncalloused) bark. To avoid potential crop damage, refer to the label sections on Application and PROTECTION OF CROPS, NATIVE AND OTHER NON-TARGET PLANTS.
Controlled Droplet Application equipment must not be used for application in cherry orchards.
Basta may be used around trees/vines less than two years old provided they are effectively shielded from spray and spray drift. Continued from previous page.
The recommended rate of use is determined by the following criteria: WEED SPECIES; WEED STAGE OF GROWTH; WEED DENSITY; CLIMATIC CONDITIONS.
WEED SPECIES Apply the appropriate rate to control the least susceptible weed present as per the lists of weeds controlled in the accompanying tables.
WEED STAGE OF GROWTH Use the lower rate when weeds are young and succulent (grasses: pre-tillering; broadleaves:
cotyledons to 4-leaf) or the population is very sparse.
A median rate should be used for medium sized plants (grasses: tillering; broadleaves: 4 leaf to advanced vegetative) and the high rate should beused when weeds are mature (grasses: noding to flowering; broadleaves: budding to flowering).
WEED DENSITY Use the higher rates when the weed population is dense. Thorough coverage of weeds is essential for good control.
CLIMATIC CONDITIONS Best results are achieved when applied under warm humid conditions (temperatures below 33 °C
with a relative humidity above 50 %). Control will be reduced and/or slower under cold conditions. Good results will be achieved under most other conditions, however poor results may occur under hot, dry conditions. Weeds that have been hardened or stunted in growth due to stressed conditions should be treated at the maximum rate.
COVERAGE Complete coverage of weeds is essential for good control. Poor coverage may result in re-growth.
PERENNIAL WEEDS Apply when weeds are actively growing. Follow up treatments will be necessary to control re-growth of perennial weeds in most cases.

STRAWBERRIES, CANE BERRY FRUITS
(INTER-ROW)
State:
All States
Rate: 1.0 to 5.0 L/ha
WHP: Nil (H) 8 weeks (G)

TOMATOES (INTER-ROW)
State:
All States
Rate: 1.0 to 5.0 L/ha
WHP: Nil (H) 8 weeks (G)

Critical comments: (Strawberries, cane berry fruits (inter-row), Tomatoes (inter-row)): Apply as a directed or shielded  spray to the interrow area. Take care not to allow spray or spray drift to contact the crop, including strawberry runners. Refer to GENERAL INSTRUCTIONS for warnings concerning plastic mulch and fumigated/sterilised soil. Determine the recommended rate of use by considering the criteria WEED SPECIES, WEED STAGE OF GROWTH, WEED DENSITY and CLIMATIC CONDITIONS, as described above.

SUGARCANE
State:
Qld, NSW, WA, NT only
Rate:
1 to 3 L/ha (directed application)
1 to 5 L/ha (shielded/hooded application)
WHP: 16 weeks (H); 16 weeks (G)
Critical comments: Determine the recommended rate of use by considering the criteria WEED SPECIES, WEED STAGE OF GROWTH, WEED DENSITY and CLIMATIC CONDITIONS, as described above. Apply as a directed or shielded spray. Directed application: Refer to recommendations for weed control in Table 1 to check that a label rate in the range 1-3 L/ha for directed application is suitable for control of the target weed at its current stage of growth. Plant cane - Do not apply earlier than just prior to out-of-hand stage. Apply spray mixture across the inter-row area between cane rows. Avoid all contact with cane shoot growing points and minimise spray contact with green cane foliage. Excessive contact with sugarcane plants may result in damage. Ratoon cane - Apply spray mixture across the inter-row area between cane rows. Do not apply until cane reaches 100 cm overall cane height (top of plants) or 20 cm to dewlap (growing point). Avoid all contact with ratoon shoot growing  points and minimise spray contact with green cane foliage. Excessive contact with sugarcane plants may result in damage. Use nozzles that deliver coarse to very coarse droplets and minimise drift, whilst ensuring complete coverage of weeds. The Irvin spray boom has been found to be suitable for the application of Basta in sugarcane. Use of a bar at the front of the boom to knock down taller weeds may help ensure good coverage and increase performance. Shielded or hooded application: Refer to recommendations for weed control in Table 1 to check that a label rate in the range 1-5 L/ha for shielded or hooded  applications is suitable for control of the target weed at its current stage of growth. Can be applied at all sugarcane stages provided that the shield is set up so as to completely avoid spray contact with sugarcane plants. Use nozzles that deliver coarse to very coarse droplets and minimise drift, whilst ensuring complete coverage of weeds. Take care to prevent spray contact with green cane foliage and avoid contact with growing point. Excessive contact with sugarcane plants may result in damage. Directed, shielded or hooded application: To avoid potential crop damage refer to the label sections on: 1. Application; 2. PROTECTION OF CROPS, NATIVE AND OTHER NON-TARGET PLANTS.

CEREAL GRAINS, PULSES, OILSEEDS
Maintenance of summer fallow prior to planting; Cereal grains (including wheat, barley, oats, maize and sorghum), Pulses (including chickpeas, faba beans, field peas, lentils, lupins and mungbeans), Oilseeds (including canola, cotton, soybeans and
sunflowers).
Do not sow crops until 14 days or more have elapsed after the final application.
Weeds: Control of: Annual polymeria; Bellvine; Bladder ketmia; Caltrop; Dwarf amaranth; Field bindweed (European bindweed); Flax-leaf fleabane; Paddy melon; Peach vine; Red pigweed; Rhyncho (Rhyncosia); Sesbania pea; Sowthistle (Milk thistle); Volunteer cotton (other than Liberty Link cotton); Yellow vin.
Suppression of: Chinese lantern (Wild gooseberry); Noogoora burr complex.
Weed stage: 2-6 leaf
Rate: 3.75L/ ha in a minimum of 100 L water
WHP: 8 weeks (G)
Critical comments: Apply to actively growing weeds. Good coverage is essential. Refer ‘Application’ section for details. Do not apply more than three applications per season. Basta will have an effect on weeds that are larger than the recommended leaf stage, but speed of activity and level of control may be reduced.
CLIMATIC CONDITIONS
Best results are achieved when Basta is applied under warm humid conditions (temperatures below 33 °C with a relative humidity above 50 %). Under any other conditions efficacy and speed of action may be reduced. Do not apply onto weeds when dew, fog or mist is present.

NOT TO BE USED FOR ANY PURPOSE, OR IN ANY MANNER, CONTRARY TO THIS LABEL UNLESS AUTHORISED UNDER APPROPRIATE LEGISLATION.

WITHHOLDING PERIODS (WHP)
Harvest (H)
Avocado, banana, blackberry, boysenberry, citrus fruit, feijoa, grapes, guava, kiwifruit, litchi, loganberry,
mango, olives, passionfruit, pawpaw, pineapple, rambutan, raspberry, strawberries, tomatoes, tree nuts:
NOT REQUIRED WHEN USED AS DIRECTED.
Pome and stone fruit: DO NOT HARVEST FOR 21 DAYS AFTER APPLICATION.
Sugarcane: DO NOT HARVEST FOR 16 WEEKS AFTER APPLICATION.
Grazing (G)
DO NOT GRAZE OR CUT TREATED AREAS FOR STOCK FOOD FOR 8 WEEKS AFTER APPLICATION.
Summer fallow: DO NOT GRAZE OR CUT FOR STOCK FOOD A CROP SOWN FOLLOWING A FALLOW
SPRAY FOR 6 WEEKS AFTER SOWING.
Sugarcane: DO NOT GRAZE OR CUT FOR STOCK FOOD FOR 16 WEEKS AFTER APPLICATION.

Registered for culturesRatePreharvest Interval
Glyphosate who kills all plants1 - 5 l
Blackberries0 l
Raspberries0 l
Avocados1 - 5 l
Bananas1 - 5 l
Kiwifruit1 - 5 l
Mangoes1 - 5 l
Passionfruit1 - 5 l
Pineapples1 - 5 l
Rambutan1 - 5 l
Citrus1 - 5 l
Olives1 - 5 l
Strawberries1 - 5 l
Tomatoes1 - 5 l
Sugarcane1 - 5 l112
Spring wheat3.75 l
Spring barley3.75 l
Spring oats3.75 l
Sorghum3.75 l
Lupines3.75 l
Chickpeas3.75 l