Roundup Flex

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A foliar applied translocated herbicide for the control of annual and perennial grass and broad-leaved weeds before sowing or planting of all crops. For use pre-emergence and pre-harvest in cereals and certain other crops, for destruction of grassland, and use in stubbles, setaside and orchards. Degraded by micro-organisms/microbes in the soil. This product contains a soluble concentrate containing 480 g/l glyphosate, present as 588 g/l (43.8% ww) of the potassium salt of glyphosate.

General Information
ROUNDUP FLEX herbicide is an advanced formulation containing glyphosate. ROUNDUP FLEX is taken up by foliage and translocated to underground roots, rhizomes and stolons, providing control of both annual and perennial grasses and broad-leaved weeds. Applied pre-harvest of specified crops, ROUNDUP FLEX provides, in addition to weed control, a diverse range of harvest management benefits accruing from the removal of green material from the crop. ROUNDUP FLEX is rapidly adsorbed onto particulate matter in soils and water and is quickly degraded by the micro-organisms present in soil and aquatic bottom sediments. Until degraded, the active ingredient in ROUNDUP FLEX, glyphosate, is practically immobile in soils and is, therefore, unlikely to contaminate groundwater. When used as directed, any water subjected to ROUNDUP FLEX spray drift may be used immediately for irrigation purposes. ROUNDUP FLEX is a glyphosate formulation which, having no hazard classification, offers a high standard of operator safety.

General cautions
A period without rain of at least 6 hours and preferably 24 hours must follow application of ROUNDUP FLEX. Do not spray onto weeds which are naturally senescent, or where growth is impaired by drought, high temperatures, a covering of dust, flooding or frost at, or immediately after application, otherwise poor control may result. Take extreme care to avoid drift, particularly when using near or alongside hedgerows. The use of low drift nozzles such as ‘air induction’ and ‘pre-orifice’ nozzles are recommended. Do not tank-mix ROUNDUP FLEX with adjuvants, pesticides or fertilisers, except as specified in under Directions for Use, Tank Mixtures. After application, large concentrations of decaying foliage, stolons, roots or rhizomes should be dispersed or buried by thorough cultivation before crop drilling. Decaying vegetation following application of ROUNDUP FLEX may temporarily delay the emergence and early growth of crops direct drilled within 48 hours of spraying of annual weeds or within 24 hours after cultivation following spraying of annual weeds. Applications of lime, fertiliser, farmyard manure and pesticides should be delayed until 5 days after application of ROUNDUP FLEX

TThis container must be triple rinsed and should then be disposed of as non-hazardous waste through a farm recycling scheme.

Weeds controlled
ROUNDUP FLEX herbicide controls most emerged grasses and broad-leaved weeds. It is important that all weeds are at the correct growth stage when treated, otherwise some re-growth may occur and this will need re-treatment. Apply ROUNDUP FLEX herbicide once grasses and broad-leaved weeds have emerged and they have ACTIVELY GROWING green leaves.
PERENNIAL GRASSES must have full emergence of healthy, green leaf. (Scutch, for example, becomes susceptible at the onset of tillering and new rhizome growth, which usually occurs when plants have 4-5 leaves, each with 10-15 cm of new growth).
PERENNIAL BROAD-LEAVED WEEDS are most susceptible around the flowering stage.
ANNUAL GRASSES AND BROAD-LEAVED WEEDS should have at least 5 cm of leaf, or 2 expanded true leaves, respectively. In set-aside, annual grasses are best treated at full ear emergence, or before stem elongation. Application during the stem extension phase of annual grasses e.g. Black-grass and Brome species on set-aside between the end of April and end of May, may result in poor control and require re-treatment.
BRACKEN should be treated after frond tips are unfurled, but pre-senescence.
This product will not give an acceptable level of control of Horsetails (Equisetum arvense) – repeat treatment will be necessary. 

Symptoms on the weeds
Symptoms of treatment are generally first seen 7-14 days, or longer, if growth is slow, after spraying. Leaf symptoms take the form of a reddening followed by yellowing of the foliage and are usually quicker to appear on grasses than on broad-leaved weeds. Reaction of nettle is slow.

Following crops
Upon soil adsorption the herbicidal properties of ROUNDUP FLEX are lost permitting the drilling of crops 24 hours after application. See the ‘Recommendation Tables’ for specific restrictions

Mixing and spraying
ROUNDUP FLEX mixes readily with water and can be applied in spray volumes ranging from 80-400 l/ha using tractor mounted, knapsack, rotary atomisers and hand-held sprayers. Specialised application equipment such as weed wipers, stem injection and spot gun applicators may be used where indicated. Correctly calibrate all sprayers under field or use conditions prior to application.

Tractor mounted
and powered hydraulic sprayers These should be capable of applying accurately 80-400 l/ha within a pressure range of 1.5- 2.5 bars (20-35 psi). Half fill the spray tank with clean water, start gentle agitation, and then add the correct amount of ROUNDUP FLEX. Top up the tank with water to the required level. To avoid foaming do not use top tank agitation. Use of a defoamer may be necessary. Medium Volume application (150-300 l/ha) Avoid high water volumes (>300 l/ha) which may lead to run-off from the treated vegetation, resulting in reduced control. Low drift nozzles such as air induction and pre-orifice types producing a medium or coarse spray (BCPC definition) should be used to minimise the risk of drift. Low Volume Application (minimum 80 l/ha) Low volume application can be achieved by reducing pressure and the appropriate nozzle selection. Low drift nozzles which produce a medium spray quality (BCPC definition) should be used to minimise the risk of drift.

Knapsack sprayers
Recommended delivery range is 80 - 300 l/ ha. Half fill the spray tank with clean water, add the correct amount of ROUNDUP FLEX and top up with water. When used at a walking speed of 1 m/sec to apply a swath of 1 m width, most knapsack sprayers fitted with a Hypro AN 0.6-AN2.4 or similar nozzle deliver approximately 200 l/ha spray volume (or 10 l per 500 m2). To apply 5.0 l/ha of ROUNDUP FLEX, therefore, use 50ml of product for each 2 litres of spray liquid required. Similarly, knapsack sprayers fitted with low volume nozzles such as D/0.23/1- D/0.68/1 typically deliver approximately 100 l/ha spray volume. To apply 5.0 l/ha ROUNDUP FLEX in this case, use 100ml of product for each 2 litres of spray liquid required.

Rotary Atomisers
Hand-held machines can be used to apply a spray volume of l/ha, e.g. Herbi and Herbaflex. When rotary atomisers are used to apply ROUNDUP FLEX ensure that the droplet diameter falls within the range 200-300 microns for all uses. Stir the correct amount of ROUNDUP FLEX to control the particular target species into the sprayer bottle half filled with clean water. Top up with water, close the top and shake gently to ensure good mixing

Weed Wipers
For ropewick applicators use a concentration of 1 part ROUNDUP FLEX to 3 parts of water and add a water-soluble dye if required. Care should be taken to avoid dripping onto wanted vegetation. For new generation weed wipers, use 1part ROUNDUP FLEX to 10 or 20 parts of water or as directed by manufacturer’s instructions.

Spot Gun
Applicators Spot gun applicators are for the treatment of individual weeds. Apply 5ml of spray to target weed, using a narrow cone TG-3 or TG-5 nozzle.

Tank Mixtures
Do not tank mix ROUNDUP FLEX with adjuvants, pesticides or fertilisers except as advised by Monsanto. For up to date information on compatible products contact Monsanto Ireland Limited, telephone (01) 825 0555 or (01) 825 0574. Do not tank-mix ROUNDUP FLEX when using rotary atomiser sprayers. For hydraulic sprayers: maintain continuous agitation when using ROUNDUP FLEX in tank mixture. For knapsack sprayers: mix thoroughly and use immediately when using ROUNDUP FLEX in tank mixture.

Effects of weather
ROUNDUP FLEX will remain efficacious at low but not freezing temperatures however the onset of symptoms will be delayed. A covering of dew may reduce efficacy where run-off occurs

Weed resistance strategy
There is low risk for the development of weed resistance to ROUNDUP FLEX. There are no known cases of weed resistance to glyphosate in Ireland. A strategy for preventing and managing such resistance should be adopted. This should include integrating herbicides with a programme of cultural control measures. Growers are encouraged to implement a weed resistance strategy based on (a) Good Agricultural Practices and (b) Good Plant Protection Practices by: Following label recommendations
The adoption of complimentary weed control practices
Minimising the risk of spreading weed infestations
The implementation of good spraying practice to maintain effective weed control
Using the correct nozzles to maximise coverage
Application only under appropriate weather conditions
Monitoring performance and reporting any unexpected results to Monsanto Ireland Ltd (Tel: (01) 825 0555/825 0574)


Registered for culturesRate
Glyphosate who kills all plants1.5 - 4.5 l