HERBICIDES
PRODUCT LABELIMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be carefully read in order to obtain safe and successful use of this product.
PROPERTIES OF REGLONE
REGLONE is rainfast 15 minutes after spraying and acts rapidly on the green parts of all plants. Within a few days of spraying, the green parts of most plants, both crops and weeds are completely desiccated. Extreme care should be taken to avoid spray drift. REGLONE is inactivated by soil and cannot affect further crops. REGLONE may be applied through any standard farm sprayer.
RESISTANCE
Diquat (and paraquat) belong to the class of herbicide known as the bipyridyls. Strains of annual meadow grass and American willowherb resistant to paraquat have been found in some hop yards/gardens and also top and soft fruit orchards. Where paraquat resistant strains are present REGLONE may not give full control of these weeds.
CROP SPECIFIC INFORMATION
POTATO HAULM DESICCATION
Rate of Use
Maximum individual dose: 4.0 litres per hectare.
Maximum total dose per crop: 5.0 litres per hectare.
Volume of Water
200–400 litres per hectare. Use 400 litres per hectare where haulm is dense.
DO NOT ADD ANY WETTER OR ADJUVANT.
Harvest Interval
There is no pre-harvest interval required for REGLONE, but if tubers are to be stored allow at least 14 days to elapse after the main treatment before harvesting to allow skin set to take place.
Timing of Application
REGLONE may be applied as either a split dose, a single dose or as part of a sequence with other defoliants.
Split dose approach
Before applying REGLONE, carry out a SMART test on the soil in the field. (Details of the SMART test are given below).
Initially apply 0.5–2.0 litres/ha REGLONE in a minimum of 200 l/ha water. Follow up 5–7 days later with a further 2.0–4.0 l/ha in a minimum water volume of 200 l/ha (up to a maximum total dose applied of 5.0 l/ha).
The first application opens up the crop canopy and allows better access to the plant base for the second, main application. The first application is a pre-treatment.
If the second application is delayed more than 7 days a further SMART test should be conducted prior to application.
Single dose approach
A single application of REGLONE can be applied at 4.0 litres/ha in a minimum of 200 litres/ha water.
There is an increased risk of tuber damage associated with single high rate applications of REGLONE in dry conditions. It is essential a SMART test is carried out prior to application. (Details of the SMART test are given below).
Particular care should be taken when MORECS soil moisture deficits exceed 33–83 mm according to soil and crop type unless 13 mm of rain has fallen in the previous 2–5 days according to soil type.
MORECS
MORECS is the Meteorological Office Rainfall and Evaporation Calculation System and should be used to identify periods of highest risk. MORECS gives a calculated Soil Moisture Deficit (SMD) – the Met Office collect weather data and calculate the amount of transpiration likely to have taken place by a potato crop in medium soil. Corrections are made for rainfall to give an SMD for any point in the country. Data are published weekly for the whole UK in 40 km x 40 km squares. These data do not take account of irrigation or specific soil type, so individual field conditions could vary significantly. A SMART test should still be undertaken in all cases.
Dry periods are defined as periods when soil moisture deficits, calculated by the MORECS scale are in excess of 33–83 mm according to soil and crop type.
The Maximum Soil Moisture Deficit for Safe Spraying (calculated from MORECS main crop potato data on soils of medium available water capacity) is given below:
Sands, very light soils, light soils, all stony soils (including stony medium and heavy soils)*
WARE**: 50 mm
EARLY OR SEED: 33 mm
CANNING: DO NOT USE
Medium soils, heavy soils, (for stony soils see above)*
WARE**: 66 mm
EARLY OR SEED: 50 mm
CANNING: DO NOT USE
Organic soils (over 10% 0M), peaty soils, peats*
WARE**: 83 mm
EARLY OR SEED: 66 mm
CANNING: 50 mm
* As given in MAFF Pamphlet 3001 ‘Soil Texture (85) System’.
** If the crop is immature or the haulm is very vigorous at the time of spraying, treat the crop as an early or seed crop.
Even where Soil Moisture Deficits exceed the levels stated above, crops can still be safely
treated with REGLONE provided that:
• On medium, heavy and organic soils crops may be sprayed if 13 mm of rain has fallen, or the equivalent amount of irrigation has been applied, in the previous FIVE days and the soil is moist around the tubers.
• On sands, light and stony soils crops may be sprayed if 13 mm of rain has fallen or the equivalent amount of irrigation has been applied in the previous TWO days and the soil is moist around the tubers.
• The soil moisture around the tubers should be assessed in the field to ensure that the rainfall or irrigation has penetrated to below tuber depth. It is essential to ensure that all parts of the field comply with this requirement, particularly where soils vary within the field.
• Local soil moisture deficit information is available from your local Syngenta Crop Protection representative.
WHY USE A SMART TEST?
Haulm destruction after prolonged periods of dry weather, when the soil is dry and crops are stressed, can lead to tuber damage. In these conditions vascular staining may be exacerbated by rapid haulm destruction achieved by mechanical or chemical methods.
It is primarily designed for use with split dose application REGLONE treatments but may also be used in conjunction with the label recommendations for a single dose application where high soil moisture deficits prevail. The SMART test allows you to evaluate when there is sufficient soil moisture in the soil for the application of REGLONE. It is a simple in-field test that will quickly indicate whether it is safe to desiccate with full rate REGLONE, a reduced rate split application or, in some cases, to use an alternative method.
How to do the SMART test
1. Take a spade out into the field.
2. Be prepared to test at several points. Take particular care with known dry areas and any areas where the crop has senesced more than the remainder.
3. Dig down and take soil sample from the centre of the ridge 5 cms below the lowest tuber.
4. Gently squeeze the soil sample into a ball with one hand. If it is sufficiently moist it will remain as a ball. If it collapses then it is too dry for REGLONE.
Treat with REGLONE within 24–72 hours of a positive SMART test.
Once you have the result of your SMART test the chart below will help you make the right REGLONE choice.
Apply in maximum light intensity/low humidity – especially in borderline conditions or when using a single application.
When applying
Soil moisture around the tubers should be assessed in the field to ensure that rainfall or irrigation has penetrated to below tuber depth. It is essential that all parts of the field comply with this requirement particularly where soils vary within the field.
The potato crop must pass a SMART test before REGLONE can be applied.
• Apply when tubers are the desired size.
• If tubers are to be stored leave 14 days after spraying to allow skins to set.
• Seed crops : Re-growth may occur if desiccated early.
• In dry conditions see special note below.
For best results: Spray in bright light and low humidity conditions. The ideal time is midmorning to mid-afternoon.
SPECIAL NOTE Application during or shortly after dry periods: Haulm destroyers may damage tubers if applied during or shortly after dry periods. When mist, light rain or heavy dew is present or imminent, the risk of such damage is increased. Do not apply when the soil is dry i.e. if the crop has clearly failed the SMART test.
DESICCATION OF COMBINABLE CROPS BEFORE HARVEST
REGLONE will not hasten crop maturity. If used on unripe or uneven seed crops, immature seed with poor germination and low bushel weight will result.
OILSEED RAPE
Timing
When on most plants the seed colour at each of the three sections of the stem is as follows:
Top third: More than half of the seed will be green, firm and pliable with a few early ripening seeds brown to black in colour.
Middle third: 90% of the seed will be reddish brown to dark brown with a few seeds black. The remaining 10% will be green but must be firm and pliable.
Bottom third: All the seed will be dark brown to black.
Note: This is usually 2–3 days later than wind-rowing would normally have started. In crops which are leaning over, the seeds on the upper side of the stem will mature ahead of those shaded from the sunlight. In this situation, spray when all the seed in the exposed pods have turned reddish brown to dark brown. Do not wait for all the seeds in the shaded pods to reach this stage of maturity.
DO NOT apply when the crop is immature or past the recommended stage of maturity. Crops at an advanced stage of maturity will have 90% of the seed black in colour and pod shatter will be evident in early ripening pods at the base and top of main stems.
AVOID desiccation with REGLONE on thin, standing rape crops and on exposed sites. Losses can occur in windy weather between spraying and combining. Normal or heavy leaning crops do not suffer in this way, such crops are ideal for desiccating with REGLONE.
Rate of use
3.0 litres per hectare in 250–500 litres of water per hectare. Use higher volumes for dense growth, in particular tall or lodged crops. Add a non-ionic surfactant adjuvant that is not an organosilicone in accordance with the manufacturer’s instructions.
Harvesting
Direct combining can normally begin 7–10 days after spraying. Check the moisture content of the seed in the standing crop from the fifth day after treatment using a moisture meter calibrated for oilseed rape. Combine harvesting should commence when the seed is mature, black in colour and with a moisture level ideally between 12% and 15%. To ensure a sound, clean sample of seed, the manufacturers’ instructions on setting-up the combine for harvesting oilseed rape should always be followed.
LAID BARLEY AND OATS (for stock feeding only)
Timing
Spray when crop is mature for combining.
Rate of Use
2.0–4.0 litres per hectare in 200–500 litres of water per hectare. Use 2.0 litres for common chickweed. Use 3.0 litres for cereal re-growth and broad-leaved weeds. Use 4 litres when cleaver and common couch are dominant. Add a non-ionic surfactant adjuvant that is not an organosilicone in accordance with the manufacturer’s instructions.
Harvesting
As soon as desiccation is complete, normally 4–7 days. A delay in harvesting may result in re-growth of grass weeds.
Treated grain and straw may be safely fed to livestock from 4 days after spraying.
TREATED BARLEY AND OATS must be used for stock feed only.
COMBINING PEAS (HARVESTED DRY)
Timing
Regular inspection of the crops particularly the bottom of the crop, should be made once it starts to take on an overall yellow appearance. Spray when the crop is mature i.e.
Top pods: Pods are fleshy, slightly pitted and green or starting to turn yellow. The seed splits if squeezed.
Middle pods: Pods are pitted and crinkled, yellow and becoming parchment-like in texture. The seed is rubbery i.e. can be squeezed between finger and thumb without splitting.
Bottom pods: Pods are yellow/brown, parchment-like (paper thin). The seeds are quite hard. Peas should have moisture content of 45% or less.
Earlier treatment may result in a proportion of shrivelled peas from immature pods at the tops of plants, thus lowering yields. The crop will take longer to dry out so that some of the advantage of desiccation is lost. There is also a risk of collapse of the haulm due to insufficient lignification of the stems.
If desiccation is left too late the advantage of earliness is lost and there is a danger that some of the bottom pods will shatter.
Rate of Use
2.0–3.0 litres per hectare in 200–500 litres of water per hectare. Use lower rate on less dense crops with few weeds.
Use of adjuvants
Peas for processing for human consumption: consult your processor before adding any wetter to REGLONE.
Harvesting
Direct combining should be carried out 7–10 days after application as soon as desiccation is completed. Treated haulm may be fed to livestock from 4 days after spraying.
FIELD BEANS AND DRIED BROAD BEANS
Timing
Spray when crop is mature and the majority of pods have turned black, to desiccate haulm and weeds.
Rate of Use
3.0 litres per hectare in 200–500 litres of water per hectare. Add a non-ionic surfactant adjuvant that is not an organosilicone in accordance with the manufacturer’s instructions.
Harvesting
7–10 days after spraying.
WHITE AND RED CLOVER FOR SEED
Timing
• Red and White Clover for direct combining: Spray when the crop is mature, 2–3 days before expected date of combining.
• White Clover combined direct from swath – spray REGLONE 1–2 days before cutting.
Rate of Use
2.0–3.0 litres per hectare in 200–500 litres of water per hectare. Use lower rate on less dense crops. Add a non-ionic surfactant adjuvant that is not an organosilicone in accordance with the manufacturer’s instructions.
Harvesting
• Direct Combining: As soon as desiccation is complete. Delay in combining may result in regrowth.
• White Clover combined from the swath: within a few hours of cutting.
• Clover straw and trash may be fed to livestock from 4 days after spraying.
LINSEED
Timing
Spray when the seed is seen to have matured evenly over the whole field. This normally occurs when the seed capsules are dark brown with the seed inside light brown. The seed should also rattle in the bolls. Ideally the most mature stems should have started to turn yellow just below the capsule cluster.
Rate of Use
3.0 litres per hectare. Add a non-ionic surfactant adjuvant that is not an organosilicone in accordance with the manufacturer’s instructions.
Volume of Water and Spraying
Apply through conventional hydraulic field crop spraying equipment with a MEDIUM QUALITY SPRAY (as defined by the BCPC). Use clean water at a volume of 300 to 500 litres per hectare and a pressure of 2–3 bar. To retain a MEDIUM quality spray (as defined by the BCPC) with higher water volumes, the use of twin outlet nozzles or twin spray booms may prove necessary.
A forward tractor speed of around 8 kph is desirable, coupled with a minimum practical boom height setting necessary to ensure even crop coverage and penetration to the crop stems.
Harvesting
Direct combining can normally begin 10–20 days after spraying when the seed moisture is below 14%. Always use a sharp knife on the combine and cut the crop as high as possible – just below the level of branching of the capsule clusters of the shortest stems. Aim to combine in bright sunny conditions, or when there is a drying wind.
MIXING AND SPRAYING
APPLICATION
Apply through a ground sprayer in good condition. Do not apply through mistblowers.
Mixing
Fill the spray tank nine tenths full of clean water, then start agitation. Add the recommended quantity of REGLONE to the sprayer using a filling device (e.g. induction hopper), or by direct addition to the spray tank. Thoroughly rinse empty containers, preferably use an integrated pressure rinsing device (or manually rinse three times). Add washings to the sprayer at the time of filling. Top up tank with water to the required volume. Continue agitation until spraying is completed.
Spraying
It is essential to spray accurately and to obtain complete cover of crop and weeds:
• Make sure nozzles are in good condition and that sprayer boom is set high enough to ensure complete coverage.
• Apply by conventional hydraulic sprayer (high clearance if necessary) as a MEDIUM quality spray (as defined by the BCPC) using a pressure of 2–3 bar. For the higher spray volumes use twin outlet nozzles or twin spray booms.
• Ensure that the sprayer is correctly calibrated before use.
• Do not leave spray liquid in the sprayer for long periods (i.e. during meals or overnight).
Water usage
• Use only clean water.
• Apply application volumes as per individual crop recommendations. Use higher volumes for dense growth.
Avoid Spray Drift: Do not spray in windy conditions.
Use of wetters or other adjuvants
• Add a non-ionic surfactant adjuvant that is not an organosilicone in accordance with the manufacturer’s instructions.
• DO NOT add a wetter or other adjuvant for desiccation of potato haulm.
• Consult your processor before using on peas for processing for human consumption
This product is to be used only in accordance with the Directions for Use and instructions given on the labels provided with this pack. Use in any other circumstances is entirely at user’s risk.
SAFETY PRECAUTIONS
(a) Operator protection
Engineering control of operator exposure must be used where reasonably practicable in addition to the following personal protective equipment:
WEAR SUITABLE PROTECTIVE CLOTHING (COVERALLS) AND SUITABLE PROTECTIVE GLOVES when handling the concentrate and when handling contaminated surfaces.
WEAR SUITABLE PROTECTIVE CLOTHING (COVERALLS) AND SUITABLE PROTECTIVE GLOVES AND RUBBER BOOTS when applying by hand held equipment.
WEAR SUITABLE PROTECTIVE CLOTHING (COVERALLS) when applying by vehicle mounted equipment.
However, engineering controls may replace personal protective equipment if a COSHH assessment shows that they provide an equal or higher standard of protection.
TAKE OFF IMMEDIATELY all contaminated clothing.
WASH ALL PROTECTIVE CLOTHING thoroughly after use, especially the insides of gloves.
WASH CONCENTRATE from skin or eyes immediately.
DO NOT BREATHE SPRAY.
WASH HANDS AND EXPOSED SKIN before meals and after work.
(b) Environmental protection
Do not contaminate water with the product or its container. Do not clean application equipment near surface water. Avoid contamination via drains from farmyards and roads.
HARMFUL TO LIVESTOCK. Keep all livestock out of treated areas for at least 24 hours after treatment.
DO NOT USE STRAW (OR HAULM) FROM TREATED CROPS AS ANIMAL FEED (OR BEDDING) for at least four days after last application.
(c) Storage and disposal
KEEP IN ORIGINAL CONTAINER, tightly closed in a safe place.
RINSE CONTAINER THOROUGHLY by using an integrated pressure rinsing device or manually rinsing three times. Add washings to sprayer at time of filling and dispose of safely.
DO NOT RE-USE CONTAINER FOR ANY PURPOSE.
THE (COSHH) CONTROL OF SUBSTANCES HAZARDOUS TO HEALTH REGULATIONS MAY APPLY TO THE USE OF THIS PRODUCT AT WORK
IMPORTANT INFORMATION
FOR USE ONLY AS AN AGRICULTURAL/HORTICULTURAL HERBICIDE/DESICCANT
For use on:
Potatoes
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 4
MAXIMUM TOTAL DOSE (L/HA/CROP): 5
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): –
LATEST TIME OF APPLICATION: –
Oilseed rape
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 3
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: –
Combining pea (dry harvested)
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 3
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: –
Field bean
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 3
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: –
Dried broad bean
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 3
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: –
Red clover (seed crop)
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 3
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: –
White clover (seed crop)
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 3
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: –
Linseed
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 3
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: –
Barley (animal feed)
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 4
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: –
Oats (animal feed)
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 4
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: –
Ornamental plant production
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 2
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: Before transplanting
Sugar beet
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 2
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): 1
LATEST TIME OF APPLICATION: Before crop emergence
All edible crops (around)
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 2
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): –
LATEST TIME OF APPLICATION: –
All non-edible crops (around)
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 2
MAXIMUM TOTAL DOSE (L/HA/CROP): –
MAXIMUM NUMBER OF APPLICATIONS (PER CROP): –
LATEST TIME OF APPLICATION: –
Other specific restrictions:
This product must not be applied through ultra low volume equipment (ULVA) or mistblower equipment.
READ THE LABEL BEFORE USE. USING THIS PRODUCT IN A MANNER THAT IS INCONSISTENT WITH THE LABEL MAY BE AN OFFENCE. FOLLOW THE CODE OF PRACTICE FOR USING PLANT PROTECTION PRODUCTS.
Syngenta Crop Protection UK Limited, CPC4, Capital Park, Fulbourn, Cambridge CB21 5XE
Tel: Cambridge (01223) 883400
In case of toxic or transport emergency ring 01484 538444 any time.
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Syngenta Crop Protection UK Limited. Registered in England No. 849037. Registered office: CPC4, Capital Park, Fulbourn, Cambridge CB21 5XE
Syngenta Seeds Limited, Registered in England No 345486, Registered office: 30 Priestley Road, Surrey Research Park, Guildford GU2 7YH
Syngenta Crop Protection UK Limited. Registered in England No. 849037. Registered office: CPC4, Capital Park, Fulbourn, Cambridge CB21 5XE
Syngenta Seeds Limited, Registered in England No 345486, Registered office: 30 Priestley Road, Surrey Research Park, Guildford GU2 7YH