Roundup Biactive XL

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Active materials

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, orchards and non-crop areas. For the control of emerged weeds in industrial and amenity situations, in forestry and in aquatic areas. 
This product contains a soluble concentrate containing 360 g/l glyphosate, present as 441 g/l (34.86% w.w.) of the potassium salt of glyphosate.


ROUNDUP BIACTIVE XL herbicide is an advanced formulation containing glyphosate. ROUNDUP BIACTIVE XL 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 BIACTIVE XL provides, in addition to weed control, a diverse range of harvest management benefits accruing from the removal of green material from the crop. ROUNDUP BIACTIVE XL is recommended for control of annual and perennial weeds in non-crop areas such as roadsides, paths, hard surfaces and along fences and walls. It is recommended for cleaning up weedy ground prior to planting or sowing, for total weed control on industrial sites and for aquatic weed control. ROUNDUP BIACTIVE XL may also be used as a directed spray in ornamental plantings, and in forestry, and forest nurseries for site preparation and post-planting treatments.
ROUNDUP BIACTIVE XL 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 BIACTIVE XL, glyphosate, is practically immobile in soils and is, therefore, unlikely to contaminate groundwater.
When used as directed, any water subjected to ROUNDUP BIACTIVE XL spray drift may be used immediately for irrigation purposes. ROUNDUP BIACTIVE XL 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 BIACTIVE XL
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 BIACTIVE XL 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 BIACTIVE XL 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 BIACTIVE XL.

Weeds controlled
ROUNDUP BIACTIVE XL herbicide controls most emerged grasses and broadleaved weeds. It is important that all weeds are at the correct growth stage when treated, otherwise some regrowth may occur and this will need retreatment.
Apply ROUNDUP BIACTIVE XL 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 BROADLEAVED 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.
OTHER SPECIES - recommendations for specific Areas of Use are given in the Recommendation Tables, pages 6-11.
This product will not give an acceptable level of control of Horsetails (Equisetum arvense) – repeat treatment will be necessary.

ROUNDUP BIACTIVE XL herbicide controls emerged and floating aquatic weeds including Common Reed, Reed Sweetgrass, Reed Canary-grass and Water-lily. Treat when the weeds are actively growing with full emergence of green leaf, at flowering and before dieback. Best results are obtained from applications in the periods from mid-July to mid-August on Waterlilies and mid-August to mid-September on reeds.

Symptoms on the weeds
Symptoms of treatment are generally first seen 7-14 days, or longer, if growth is slow, For aquatic weed control, on reeds and grasses leaf symptoms usually appear within 14-21 days of spraying in the early autumn. Complete foliage desiccation usually occurs 30-40 days after spraying. At this stage, the reeds can be cut and removed. During cold conditions leaf symptoms may not appear before natural dieback but no growth will occur in the season following spraying.

Following crops
Upon soil adsorption the herbicidal properties of ROUNDUP BIACTIVE XL are lost permitting the drilling of crops 24 hours after application.

Mixing and spraying
ROUNDUP BIACTIVE XL 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 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 BIACTIVE XL. 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 BIACTIVE XL 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 BIACTIVE XL, 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 BIACTIVE XL in this case, use 100ml of product for each 2 litres of spray liquid required. Amount of Roundup Biactive XL required for a 20 liter knapsack for 3 spray volumes (100; 200 or 300 Liters per hectare)

Amount of Roundup Biactive XL required for a 20 liter knapsack for 3 spray volumes document will not infringe any patent or trademark registration. (100; 200 or 300 Liters per hectare)

Rotary Atomisers Hand-held machines can be used to apply a spray volume of 10-40 l/ha, e.g. Herbi and Herbaflex. Tractor-mounted rotary atomiser boom sprayers are suitable for use in forest situations to apply a spray volume of 10-40 l/ha. When rotary atomisers are used to apply ROUNDUP BIACTIVE XL ensure that the droplet diameter falls within the range 200-300 microns for all uses. Stir the correct amount of ROUNDUP BIACTIVE XL 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 BIACTIVE XL to 2 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 BIACTIVE XL to 7.5 or 15 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.

Boat mounted sprayers (for use in aquatic situations) Prepare sprayer as for knapsack sprayers (Section b above). Calibrate and spray at the lowest speed possible. Always apply against the direction of any current.

Tank Mixtures
Do not tank mix ROUNDUP BIACTIVE XL 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 BIACTIVE XL when using rotary atomiser sprayers. For hydraulic sprayers: maintain continuous agitation when using ROUNDUP BIACTIVE XL in tank mixture. For knapsack sprayers: mix thoroughly and use immediately when using ROUNDUP BIACTIVE XL in tank mixture.

Effects of weather
ROUNDUP BIACTIVE XL 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 BIACTIVE XL. 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:
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)

Operating instructions
for returnable containers The product must only be transferred and measured using a closed transfer system. If any doubt exists regarding equipment suitability contact the equipment manufacturer or your agronomist for further advice. Remove the tamper evident plastic cap from valve unit fitted to the top of the IBC. Attach the coupler of the transfer system as instructed in the equipment manual to the IBC and operate using the equipment manufacturer’s instructions to transfer the required amount of product. Remove the coupling after use and rinse the equipment in line with the instructions ensuring that the transfer system is

Sprayer hygiene
It is essential to thoroughly clean-out spray tanks, pumps and pipelines and nozzle or disc assemblies, with a recommended detergent cleaner, between applying this product and other pesticides to avoid contamination from pesticide residues. clean and empty before placing in the storage position. The container must be empty of product and left in a clean condition for collection. Do not attempt to rinse the inside - external clean only

Registered for culturesRate
Glyphosate who kills all plants4 - 6 l