Reglone

Manufacturer
SYNGENTA
Category
Herbicides
Registered until
2024-06-30
Registration number
46534
Active materials
Links

For pre-harvest crop desiccation and the control of a wide range of broadleaf weeds in certain crops as per Directions for Use. For application through aircraft and ground equipment.

DIRECTIONS FOR USE
Restraints
DO NOT spray when weeds are under drought stress or when covered with dust or soil.
DO NOT apply with misting machines or CDA applicators.

PRE-HARVEST CROP DESICCATION

COTTON Short stapled varieties only
States: Qld, NSW, WA only
Rate Δ: 2 to 3 L/haΔ or 700 mL/haΔ plus 16.5 L/ha Leafex*
Critical Comments: Apply when 85% of the bolls are open and remaining bolls are mature. REGLONE can damage green bolls.

DRY BEANS, DRY PEAS, LENTILS, CHICKPEAS, FABA BEANS
States: All States
Rate Δ: 2 to 3 L/haΔ
Critical Comments: Spray as soon as the crop has reached full maturity. Helps overcome slow and uneven ripening and weed problems at harvest.

LINSEED
States: All States
Rate Δ: 2 to 3 L/haΔ
Critical Comments: Spray when the majority of seed heads are mature - 90 to 95% of seed heads have changed from yellow to brown and the seeds rattle inside the bolls. Desiccation reduces the period from maturity to harvest, particularly under wet or humid conditions.

LUPINS
States: All States
Rate Δ: 2 to 3 L/haΔ
Critical Comments: Spray as soon as the crop has reached full maturity. Helps overcome slow and uneven ripening and weed problems at harvest.

MUNG BEANS
States: All States
Rate Δ: 2 to 3 L/haΔ
Critical Comments: Apply when 80 to 90% of pods are black or brown. Desiccation of weeds and foliage aids timely and efficient harvesting, reduces harvester wear and tear but can increase harvest losses. Harvest 2 to 5 days after spraying.

PERENNIAL LEGUME SEED CROPS
States: All States
Rate Δ: 1.5 to 3 L/haΔ
Critical Comments: 
Lucerne: Spray when 60 to 70% of the pods are brown/bluish and the seeds are yellow/brown and easily released from the pods.
Red Clover: Spray when majority of seed heads are brown and the seed is purple.
White Clover: Spray when majority of seeds are hard and yellow.
The use of REGLONE enables direct harvesting instead of cutting and windrowing and may result in higher seed quality. Harvest 3 to 4 days after spraying.

PIGEON PEAS
States: All States
Rate Δ: 2 to 3 L/haΔ
Critical Comments: Spray as soon as the crop has reached full maturity

POPPIES
States: Tas only
Rate Δ: 3 to 4 L/haΔ
Critical Comments: Spray after the poppies have reached the stripy capsule stage. Helps overcome slow and uneven ripening and weed problems at harvest.

POTATO Haulm desiccation
States: All states
Rate Δ: 3 to 4 L/haΔ
Critical Comments: Apply as soon as crop is ready to harvest. Do not apply during drought periods, particularly when the tops will wilt during the day. In such conditions wait at least 3 days after the soil has been well moistened by rain or irrigation. Leaf kill is rapid following spraying and usually complete within 4 days. Stem kill may take 10 to 14 days. Lift when desiccation is complete but where possible wait for 14 days after spraying to allow skin to harden off. Use high water volumes to obtain coverage of dense haulm. Regrowth may occur if seed crops are desiccated early.
GROUIND STORED Pre-harvest weed control
Rate Δ: 1.5 L/haΔ plus 1.2 L/ha Gramoxone® 250
Critical Comments: To remove weed growth and facilitate digging, spray about 7 days prior to harvest. Where digging has been postponed and tubers stored in the ground often for a lengthy period, weed growth can be heavy and impede mechanical diggers unless removed.

CANOLA
States: All States
Rate Δ: 1.5 to 3 L/haΔ
Critical Comments: Spray when 70% of the pods are yellow and the seeds are browny/ bluish and pliable. Canola ripens unevenly and is prone to pod shatter and seed loss. Direct harvest 4 to 7 days after spraying.

RICE
States: All States
Rate Δ: 2 to 3 L/haΔ
Critical Comments: Spray when the grain is mature - not more than 2 to 3% of the grain is still at the milky stage and the grain moisture content must be less than 25%.

SORGHUM
States: All States
Rate Δ: 2 to 3 L/haΔ
Critical Comments: Spray as soon as the seed is mature and the moisture content about 25%. REGLONE will advance harvest and reduce seed losses due to differential ripening, seed shedding and birds.

SOYA BEANS
States: All States
Rate Δ: 2 to 3 L/haΔ
Critical Comments: Spray when 80% of the pods are yellow/brown and the seeds are ripe - yellow and pliable. Desiccation of weeds and foliage aids timely and efficient harvesting, minimises cost and increases yields. Harvest 4 to 7 days after spraying.

SUGARCANE
States: Qld and NSW only
Rate Δ: 2 to 3 L/haΔ
Critical Comments: Spray all accessible faces a few days prior to burning to a depth of about 30 metres. The sprayed cane and weed growth quickly dries out and ensures a good burn and removal of trash prior to harvest.
Rate Δ: High volume hand spraying 200 mLΔ/ 200L water
Critical Comments: Spray to visible wetness.

SUNFLOWERS
States: All States
Rate Δ: 2 to 3 L/haΔ
Critical Comments: Spray when the seed is mature, seed moisture 35% and below, kernel full and firm, the disc spongy when broken, florets loose and bracts browning off. Harvesting can commence as soon as vegetative parts of crop are desiccated, usually 7 to 14 days after spraying.

SWEET POTATOES
States: All States
Rate Δ: 3 to 4 L/haΔ
Critical Comments: Apply 2 weeks prior to harvest.

GENERAL WEED CONTROL

AQUATIC AREAS
Weeds: Duck Weeds, Red Azolla, Water Hyacinth, Salvinia, Marsilea, Water Lilies, Water Lettuce
States: All states
Rate Δ: 5 to 10 L/ha
Critical Comments: Apply as an overall spray wetting foliage thoroughly. Clear water is necessary for best results as suspended soil particles interfere with herbicidal action. Use the higher rate for heavy infestations or for deep or dirty water. A repeat application 7 to 14 days later may be necessary for control of dense infestations. Oxygen depletion of decaying weeds may occur, therefore not more than ¼ of the area should be treated at once to ensure adequate oxygen supply for fish.
Rate Δ: 400 mL/ha plus 150 mL Agral® / 100 L water
Critical Comments: Small areas: Spray to wet weeds thoroughly. About 1 mL of product should be sufficient to treat about 1 m2.

Weeds: Cattail Pond Weeds
Rate Δ: 5 L/ megalitre water
Critical Comments: Apply by injection below the surface or as a surface spray.

ASPARAGUS
Weeds: Broadleaf weeds
States: All states
Rate Δ: 1.4 L/ha plus 800 mL Agral in 400 L water
Critical Comments: Apply to control seedling weeds before spears have emerged.

HOPS
Weeds: Annual broadleaf and grass weeds
States: Vic, Tas only
Rate Δ: 700 mL to 1.4 L/haΔ may be mixed with 1.2 to 1.6 L/ha Gramoxone 250 and/or 1.1 kg Gesatop® Granules
Critical Comments: Apply as a directed inter-row spray prior to crop emerging from winter dormancy, using a minimum of 250 L/ha spray volume to ensure good and even coverage of weeds.

INFESTED AREAS
Weeds: Cotton Thistle (Onopordum acanthium)
States: Tas only
Rate Δ: 300 mL/ha plus 150 mL Agral in 100 L water
Critical Comments: Spot spray at the rosette stage before the centre shoot is 15 cm tall. The spray should be applied to give complete wetting of the leaf surface. DO NOT use a lower rate or treat at a later growth stage.

Weeds: Saffron Thistle
States: All states
Rate Δ: 2.8 L/ha plus 1 L Agral in 200 L water
Critical Comments: Apply as an overall treatment to prevent seeding.
Rate Δ: 100 mL plus 70 mL Agral / 15 L knapsack
Critical Comments: Alternatively spot spray on the same basis.

LUCERNE
Weeds: Capeweed and Erodium spp.
States: All states
Rate Δ: 350 mL/haΔ in 200 L water
Critical Comments: Early autumn application
Rate Δ: 700 mL/haΔ in 200 L water
Critical Comments: Late winter application

Critical Comments: Heavy grazing is necessary to reduce Lucerne to 2 cm in height before spraying.

OILSEED POPPIES
Weeds: Weed control
States: Tas only
Rate Δ: 300 mL to 1.5 L/ha
Critical Comments: Use in accordance with recommendations made by Department of Primary Industries or the poppy contracting company. DO NOT add Agral or any other wetting agent to the spray solution.

ORCHARDS, VINEYARDS
Weeds: Capeweed
States: All states
Rate Δ: 1.5 L/ha plus 1.4 L Agral in 700 L water plus 1.6 L/ha Gramoxone 250
Critical Comments: Apply as a directed spray under trees or vines.
Under most conditions Gramoxone 250 at 1.6 to 3.2 L/ha or Spray.Seed® 250 at 2.4 to 3.2 L/ha will give effective control of grasses and broadleafed weeds in orchards, but where heavy infestations of capeweed occur REGLONE should be added to Gramoxone 250 at the rate of 1.5 L/ha. For inter-row or around butts use high volume applications. Gramoxone 250, Spray.Seed 250 and REGLONE have no effect on brown bark but care should be taken when spraying around trees to avoid spray contacting green bark or plant material.

PASTURE RENOVATION AND ESTABLISHMENT
Weeds: Capeweed and Erodium spp. (Storksbill)
States: All states
Rate Δ: 750 mL to 1.5 L/ha plus Agral in a minimum of 100 L water

Weeds: Barley Grass, Brome Grass, Silver Grass, Sweet Vernal Grass
Rate Δ: 750 mL to 1.5 L/haΔ plus 1 to 2 L/ha Gramoxone 250 in a minimum of 100 L water

Critical Comments: Apply by boom spray as an overall spray on 'run-down' pasture after heavy grazing. Pasture should not be greater than 4 cm long when sprayed. Grazing should be carried out during previous spring, summer and early autumn. Where Capeweed is in the very young seedling stage (2 or 3 true leaves only) rates may be reduced to 350 mL/ha. Where Capeweed infestation is high, oversowing with new pasture seed by direct drilling is advisable. Direct drill 3 to 7 days after spraying using a pasture mix suitable for the district.

ROW CROPS, VEGETABLES, MARKET GARDENS
Weeds: Broadleaf weeds
States: All states
Rate Δ: 1.4 L/haΔ
Critical Comments: Seedling weeds
Rate Δ: 2.8 Δ to 4 L/haΔ per 200 to 300 L water
Critical Comments: Mature weeds

Critical Comments: Spray.Seed 250 and Gramoxone 250 are more generally used for grass and broadleaf weed control in these situations. However, where broadleaf weeds dominate, particularly capeweed, REGLONE should be tank mixed with Gramoxone 250 or instead of Gramoxone 250 where grass weeds are absent.
Apply as a blanket spray prior to crop emergence. Once crops have emerged, or seedlings have been transplanted, apply as a shielded spray between crop rows. Do not allow spray to contact any part of the crop.

WHEAT, OATS
Weeds: Capeweed
States: Qld, NSW, Vic, Tas, SA only
Rate Δ: 550 mL/ha in 200 L of water
Critical Comments: Small seedlings. Do not add wetting agent. Spray when the crop is between the 4 (wheat) or 3 (oats) leaf and early tillering stage.
Rate Δ: 700 mL/ha in 200 L of water
Critical Comments: Older seedlings. Do not add wetting agent. Spray when the crop is between the 4 (wheat) or 3 (oats) leaf and early tillering stage.

WINTER CEREALS
Weeds: Pre-harvest weed control
States: All states
Rate Δ: 1 to 3 L/haΔ
Critical Comments: Spray as soon as the crop is fully mature and ready for harvesting. Under wet spring conditions crops can periodically become infested with weeds which seriously interfere with harvest operations. REGLONE will control these weeds allowing more efficient harvest.

WHEAT
Weeds: Pre-harvest weed control
States:
 NSW only
Rate Δ: 2 L/haΔ
Critical Comments: Light to moderate stands
Rate Δ: 3 L/haΔ
Critical Comments: Moderate to heavy stands

Critical Comments: Ensure that spray penetrates deep down into the crop canopy.

NOTE: Use higher rate for dense or weedy crops.
Δ WETTING AGENT: Add Agral at the rate of 200 mL/100 L or BS1000* at 160 mL/100 L of prepared spray unless otherwise specified.

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

WITHHOLDING PERIODS
Grazing:
DO NOT GRAZE OR CUT SPRAYED VEGETATION FOR STOCK FOOD FOR 1 DAY AFTER APPLICATION
Harvest:
Cotton, Dry Beans, Dry Peas, Mung Beans, Asparagus, Hops, Orchards and Vineyards, Row Crops, Vegetables and Market Gardens, Oats, Wheat and Winter Cereals:
NOT REQUIRED WHEN USED AS DIRECTED
Lentils, Chickpeas, Faba Beans:
DO NOT HARVEST FOR 2 DAYS AFTER APPLICATION
Pigeon Peas, Canola, Sunflower, Soya Beans, Sugar Cane:
DO NOT HARVEST FOR 4 DAYS AFTER APPLICATION
Rice:
DO NOT HARVEST FOR 5 DAYS AFTER APPLICATION
Potatoes:
DO NOT HARVEST FOR 7 DAYS AFTER APPLICATION
Poppies:
DO NOT HARVEST FOR 2 DAYS AFTER APPLICATION
Sweet Potatoes:
DO NOT HARVEST FOR 14 DAYS AFTER APPLICATION

DO NOT USE TREATED WATER FOR HUMAN CONSUMPTION, LIVESTOCK WATERING OR IRRIGATION PURPOSES FOR 10 DAYS AFTER APPLICATION

GENERAL INSTRUCTIONS
Uses
REGLONE is an aqueous solution of diquat, a non-volatile herbicide with unique properties. It very quickly kills green growth with which it comes into contact and is particularly effective against broadleaf weeds. It is inactivated on contact with the soil and crop roots and seeds below the soil remain unharmed. It can be safely applied around bushes and trees which have no green bark. It is non-volatile, easily mixed with water and active at low concentrations.

Mixing
Add the required quantity of REGLONE to water in the spray tank and agitate to give even mixing. Agitate again if left standing. Use clean water only, as suspended soil particles in dirty water will interfere with herbicidal action.

Wetting agent
REGLONE contains no wetting agent, and a non-ionic wetting agent must be added to the spray mixture unless otherwise specified. Add Agral at the rate of 200 mL/100 L or BS1000 at 160 mL/100 L of prepared spray unless otherwise specified.

Application
For best results an even and complete coverage and good penetration of the spray into the target foliage is necessary. Best results will be obtained when application is made in dull weather or at the end of the day. REGLONE is rapidly absorbed and is not affected by rain falling shortly after application.

Application Rates
Use the higher rates specified in the directions for use for dense or weedy crops.
For application to seedling weeds REGLONE is generally recommended at 1.4 L/ha and Gramoxone 250 Herbicide at 1.2 L/ha. Use REGLONE at 2.8 to 4 L/ha and Gramoxone 250 at 1.6 to 3.2 L/ha when weeds are at the older stages of growth. Gramoxone 250 is preferred where grasses are dominant and REGLONE where there are mainly broadleaf weeds.

Boom Spraying
A boomsprayer fitted with flat fan nozzles is preferred to ensure even coverage and to minimise drift. The boom should be set at sufficient height above the crop to provide a complete double overlap of the flat spray pattern. Spray drop arms on booms are useful for dense crops such as potatoes. A minimum spray volume of 100 L/ha is recommended. Aim for a spray quality in the fine to medium range, ie a VMD droplet size of 200 to 250 m. Generally a flat fan nozzle operated at 200 to 300 kPa is preferred.

High Volume Spot Spraying
Hand held equipment use 250 mL of product per 100 L of water and spray to visible wetness (about 700 to 1000 L/ha). Use 50 mL product plus 30 mL Agral per 15 L knapsack.
Aerial Application
Flying height, pressure, nozzle size and positioning on the aircraft should be such as to minimise spray drift. Apply 30 to 60 L of spray per hectare. Avoid spraying in high winds or under temperature inversion conditions. Wash any spillage during filling of the aircraft and make sure there are no leaks in the spraying system. Inspect the aircraft regularly for signs of corrosion and ensure the paint work is in good condition.
Caution - Use By Aircraft
Although this product is no different in drift behaviour from other chemicals, it has a rapid spotting effect on green foliage and, as with all herbicides, special care must be taken to avoid drift onto adjacent crops. Aircraft operators must not apply during periods of thermal (temperature) instability, and should avoid wind conditions and flying heights conducive to drift.

Weed Control in Row Crops, Vegetables and Market Gardens
Pre-Planting and Pre-Crop Emergence
To control weeds in seed beds before sowing, or post-sowing pre-crop emergence, apply as a blanket spray with this product using boom spray equipment or knapsack sprayers.
Post-Emergence Inter-Row Weed Control
Use shielded nozzles for rapid control of weeds in inter-row spaces of row crops, after crop seedlings have emerged, or when transplanted crops are established. Direct the spray so that it does not touch the crop.
Pre-Harvest Crop Desiccation
Green crop foliage and weeds can seriously interfere with harvesting operations of a number of crops. This product can be used to facilitate harvesting by desiccating weeds, accelerating the drying of crops and reducing the moisture content of seeds. Drying costs are reduced, harvesting delays and associated risks avoided.

Warning
Markers: If possible fixed markers should be used. Human markers are not recommended unless flaggers are protected by engineering controls such as vehicles with cabs.

Compatibility
This product mixes readily with Gramoxone 250 Herbicide, the soil residual herbicides Gesaprim® Granules, Diurex* WG and Gesatop Granules, where prolonged weed control is required as well as a quick knockdown.

GROUP L HERBICIDE

Resistant Weeds Warning
REGLONE Non-Residual Herbicide is a member of the bipyridyl group of herbicides. REGLONE has the inhibitor of photo-synthesis at photosystem I mode of action. For weed resistance management REGLONE is a Group L herbicide. Some naturally occurring weed biotypes resistant to REGLONE and other Group L 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 REGLONE or other Group L herbicides. Since the occurrence of resistant weeds is difficult to detect prior to use, Syngenta Australia Pty Ltd accepts no liability for any losses that may result from the failure of REGLONE to control resistant weeds.

Registered for culturesRate
Cotton0.7 - 3 l
Beans2 - 3 l
Lentils2 - 3 l
Chickpeas2 - 3 l
Winter flax2 - 3 l
Lupines2 - 3 l
Alfalfa0 l
Clover1.5 - 3 l
Peas2 - 3 l
Potatoes1.5 - 4 l
Canola1.5 - 3 l
Rice2 - 3 l
Sorghum2 - 3 l
Soybeans2 - 3 l
Sugarcane2 - 3 l
Sunflowers2 - 3 l
Sweet potatoes3 - 4 l
Asparagus1.4 l
Hops0.7 - 1.4 l
Grapes1.5 l
Pasture0.75 - 1.5 l
Winter wheat1 - 3 l
Spring wheat2 - 3 l
Spring oats0 l
Winter oats1 - 3 l
Winter triticale1 - 3 l
Winter barley1 - 3 l
Winter rye1 - 3 l