Roundup Powermax
- Manufacturer
- Monsanto
- Category
- Herbicides
- Registered until
- N/A
- Registration number
- 16373
- Active materials
- glyphosate720 g/kg
A foliar applied herbicide for the control of annual and perennial grass and broad-leaved weeds, before sowing or planting all crops, pre-emergence and pre-harvest in cereals and certain other crops, for destruction of grassland,and set-aside and for use in stubbles, orchards, vineyards, aquatic and non-crop areas.
This product is a water soluble granule containing 72% w.w. glyphosate present as 79.2% w/w as the ammonium salt.
DIRECTIONS FOR USE
IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be read carefully in order to obtain safe and successful use of this product.
Warnings
EXTREME CARE SHOULD BE TAKEN TO AVOID SPRAY DRIFT AS THIS CAN SEVERELY DAMAGE NEIGHBOURING CROPS OR PLANTS.
DO NOT MIX, STORE OR APPLY ROUNDUP POWERMAX IN GALVANISED OR UNLINED STEEL CONTAINERS OR SPRAY TANKS.
DO NOT leave spray mixtures in tank for long periods and make sure tanks are WELL VENTED.
Restrictions
Rain within 6 hours may reduce efficacy.
Keep stock out of treated areas for 7 days to allow the herbicide to become fully active. TREATED POISONOUS PLANT SPECIES MUST BE REMOVED BEFORE REGRAZING OR CONSERVING Applications of lime, fertiliser, farmyard manure and pesticides should be delayed until 5 days after application of ROUNDUP POWERMAX.
E xtreme care must be taken to avoid spray drift onto non-crop plants outside of the target area, particularly when using near or alongside hedgerows.
Do not spray on to weeds suffering from drought, water-logging, a covering of dust, heat or frost, otherwise poor control may result.
Do not tank mix ROUNDUP POWERMAX with adjuvants, pesticides or fertilisers except as specified under Directions for Use–Compatibility.
Weeds controlled
All target weeds must be actively growing at spraying. 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. PERENNIAL GRASSES must have full emergence of healthy, green leaf. (Common Couch, 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.
Where long-term PERENNIAL WEED control is sought it is important that perennial weeds are not disturbed prior to treatment so cultivation should not be carried out before spraying.
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 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. See booklet attached. This product will not give an acceptable level of control of Horsetails (Equisetum arvense) – repeat treatment will be necessary.
Weed resistance strategy
There is a low risk for the development of weed resistance to ROUNDUP POWERMAX. Strains of some annual weeds (e.g. Black-grass, Wild oats and Italian Ryegrass) have developed resistance to certain herbicides which may lead to poor control using those products. A strategy for preventing and managing such resistance should be adopted. This should include integrating herbicides with a programme of cultural control measures. Guidelines have been produced by the Weed Resistance Action Group and copies are available from the HGCA, CPA, your distributor, crop adviser or product manufacturer (Monsanto). 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 UK Ltd (Tel: 01954 717575)
Following Crops
Upon adsorption, the herbicidal properties of ROUNDUP POWERMAX are lost, permitting drilling of crops within 48 hours of application.
Mixing and spraying
ROUNDUP POWERMAX is a water-soluble granular formulation. The free-flowing, dust-free granules dissolve rapidly and completely in water and can be applied in spray volumes ranging from 80-400 l/ha using tractor-mounted and knapsack sprayers . Specialised spraying equipment such as weed wiper applicators may be used where indicated.
Correctly calibrate all sprayers under field or use conditions prior to application.
USAGE INSTRUCTIONS
Standard sprayer
1. Fill the spray tank with 2/3 of the required quantity of water.
2. Switch on the agitation and re-circulation.
3. Add the granules “progressively” and when completed add the remaining water. Continue agitation for a minimum of 5 minutes. (Alternatively, a re-circulation washed sieve on top of the tank may be used if available. First fill the tank with required volume of water and slowly add granules to the sieve as they dissolve).
Induction hopper
Follow Stages 1 and 2. :
3. Half fill the bowl with water.
4. Add product until within 2 cm of the water’s surface.
5 + 6. Open the valve to empty the bowl into the main tank and close when all the contents have emptied. Do not leave the induction valve permanently open or excessive air entrapment will occur. Repeat until the required amount of product has been introduced.
Spray Quality
A MEDIUM or COARSE quality spray (BCPC definition) should be applied for optimum results and to reduce the risk of drift. Conventional hydraulic sprayers with a pressure range 1.5-2.5 bar is suitable.
A MEDIUM or COARSE quality spray (BCPC definition) should be applied for optimum results and to reduce the risk of drift. Conventional hydraulic sprayers with a pressure range 1.5-2.5 bar is suitable.
Filling the Sprayer
Half fill the spray tank with water and, on tractor-mounted sprayers, start agitation. Add the appropriate quantity of ROUNDUP POWERMAX. Top up the tank to the level required. Filling the Sprayer When using a chemical induction bowl or hopper, half fill the bowl with water and add ROUNDUP POWERMAX until within 2 cm (1 inch) of the surface of the water. With the rinsing system on, open the valve to empty the bowl into the main tank. Repeat until the required amount of ROUNDUP POWERMAX has been introduced.
Half fill the spray tank with water and, on tractor-mounted sprayers, start agitation. Add the appropriate quantity of ROUNDUP POWERMAX. Top up the tank to the level required. Filling the Sprayer When using a chemical induction bowl or hopper, half fill the bowl with water and add ROUNDUP POWERMAX until within 2 cm (1 inch) of the surface of the water. With the rinsing system on, open the valve to empty the bowl into the main tank. Repeat until the required amount of ROUNDUP POWERMAX has been introduced.
Knapsack Sprayer Applicators When used at a walking speed of 1 m/sec to apply a swath of 1 m width, most knapsack sprayers deliver 200 l/ha spray volume (or 10 litres per 500 m2). To apply 2.0 kg/ha of ROUNDUP POWERMAX, therefore, use 20g product for each 2 litres of spray liquid required. – use in non-crop areas , aquatic situations and orchards. When used as above, knapsack sprayers fitted with low volume nozzles typically deliver 100 l/ha spray volume (or 10 litres per 1000 m2). To apply 2.0 kg/ha ROUNDUP POWERMAX in this case, use 40g product for each 2 litres of spray liquid required.
Hand-held Weed Wiper Applicator (e.g. Weed Wiper Mini) Apply a solution of 180g ROUNDUP POWERMAX per 1 litre of water adding a waterbased dye if required. Care should be taken to avoid dripping onto wanted vegetation. – use in non-crop, and orchards. A suitable dye may be obtained from Certis, telephone (01980) 676500
Spot Gun Applicators - treatment of individual weeds in orchards and non-crop situations. Apply 5 ml 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. Calibrate and spray at the lowest speed possible. Always apply against the direction of any current.
Compatibility
Do not tank mix ROUNDUP POWERMAX with adjuvants, pesticides or fertilisers except as advised by Monsanto. For up to date information on compatible products contact Monsanto UK Limited (tel: 01954 717575). For hydraulic sprayers: maintain continuous agitation when using ROUNDUP POWERMAX in tank mixture. For knapsack sprayers: mix thoroughly and use immediately when using ROUNDUP POWERMAX in tank mixture.
General Information
ROUNDUP POWERMAX is a foliar-acting herbicide with broad-spectrum activity. It is translocated from treated green growth to underground roots, rhizomes and stolons, providing control of both annual and perennial weeds. ROUNDUP POWERMAX 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. When used as directed any water subjected to ROUNDUP POWERMAX spray drift may be used immediately for irrigation purposes. Until degraded, the active ingredient in ROUNDUP POWERMAX, glyphosate, is practically immobile in soils and is, therefore, unlikely to contaminate groundwater. All edible and non-edible crops may be sown or planted at specified intervals following the use of this product.
Agronomic advice
Applied pre-harvest of specified crops, ROUNDUP POWERMAX provides, in addition to weed control, a diverse range of harvest management benefits accruing from the removal of green material from the crop. After application, large concentrations of decaying foliage, stolons, roots or rhizomes should be dispersed or buried by thorough cultivation before crop drilling. Direct drilling into such a mat of decaying material may occasionally cause a slight check to crop growth. To maximise the safety of ROUNDUP POWERMAX to operator, consumer and environment, the label recommendations and the DEFRA/HSE/NAW publication “Code of practice for using plant protection products” of January 2006 should be adhered to.
| Registered for cultures | Rate |
|---|---|
| Glyphosate who kills all plants | 0.75 - 5 kg |