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REGLONE contains 200 g/l (16.7% w/w) diquat as dibromide.

 

IMPORTANT: 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.

 

REGLONE can be used as a ‘harvest aid’ for desiccating a wide range of crops – potatoes, oilseed rape, laid barley and oats, combining peas for harvesting dry, field beans, linseed, red and white clover for seed.

 

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. REGLONE is inactivated by soil and cannot affect further crops.

REGLONE may be applied through any standard farm sprayer.

 

CROP SPECIFIC INFORMATION POTATO HAULM DESICCATIO

POTATO HAULM DESICCATION
Timing
- 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.
Rates of Use
Maximum individual dose: 4.0 litres per hectare
Maximum total dose per crop: 5.0 litres per hectare Volume of Water: 200–500 litres per hectare. Use 500 litres per hectare where haulm is dense.
DO NOT ADD ANY WETTER OR ADJUVANT.
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.
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 (see table).
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 5 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 2 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.

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 the seed colour on most plants 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.
Maximum number of treatments: One per crop.
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 feed 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 4.0 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.
Maximum number of treatments: One per crop.
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 a 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 fewer weeds.
Maximum number of treatments: One per crop.
Use of adjuvants
Peas for processing for human consumption: consult your processor before adding an adjuvant 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 (for pigeon and animal feed only)
Timing
To desiccate haulm and weeds spray when crop is mature and the majority of pods have turned black.
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.
Maximum number of treatments: One per crop.
Harvesting
4–7 days after spraying.
TREATED FIELD BEANS must be used for pigeon and stock feed only.

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. A 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.
Maximum number of treatments: One per crop.

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.
Maximum number of treatments: One per crop.
Volume of Water and Spraying
Apply through conventional hydraulic field crop spraying equipment with a MEDIUM QUALITY spray. 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 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.

 

Apply through a ground sprayer in good condition. Do not apply through mistblowers.

Fill the spray tank nine tenths full with 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 sprayer 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.

It is essential to spray accurately and to obtain complete coverage of crop and weeds:

- Make sure nozzles are in good condition and that the sprayer boom is set high enough to ensure complete coverage.

- Apply by conventional hydraulic sprayer (high clearance if necessary) as a MEDIUM spray 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).

- Use only clean water.

- Apply water volumes as per individual crop recommendations. Use higher volumes for dense growth.

Avoid Spray Drift: Do not spray in windy conditions.

- 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.