Surrender

Manufacturer
Agrovista
Category
Herbicides
Registered until
N/A
Registration number
16169
Active materials
Links

A foliar applied herbicide for the control of annual and perennial grassland and broad-leaved weeds before sowing or planting all crops. For use pre-emergence and pre-harvest in cereals and certain other crops, destruction of grassland, and in set-aside, stubbles, orchards, forestry, industrial, amenity and non-crop areas.

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.
EXTREME CARE MUST BE TAKEN TO AVOID SPRAY DRIFT ONTO NON-CROP PLANTS OUTSIDE OF THE TARGET AREA.
DO NOT MIX, STORE OR APPLY Surrender 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
A period of at least 6 hours and preferably 24 hours rain-free must follow application of Surrender.
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, immediately after application, otherwise poor control may result.
Do not spray in windy conditions as drift onto desired crops or vegetation could severely damage or destroy them.
After application, large concentrations of decaying foliage, stolons, roots or rhizomes should be dispersed or buried by thorough cultivation before crop drilling.
Applications of lime, fertiliser, farmyard manure and pesticides should be delayed until 5 days after application of Surrender.

Weeds controlled
Surrender is a foliar acting herbicide which controls annual and perennial grasses and most broad-leaved weeds when used as directed. 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 Surrender 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. (Common Couch, for example, becomes susceptible at the onset of tillering and new rhizome growth commences 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 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 are provided in the following pages
For Horsetails, Equisetum arvense, repeat treatments will be required to obtain an acceptable level of control.

Following Crops
Upon soil adsorption the herbicidal properties of Surrender are lost permitting the drilling of crops 48 hours after application.
Planting of trees, shrubs etc. may take place 7 days after application. Grass seed may be sown from 5 days after treatment; see the ’Recommendation Tables’ for specific restrictions on direct drilled crops.

Weed resistance strategy
As with any herbicide, there is a low risk of the development of weeds resistant to Surrender. Strains of some weeds (e.g. wild oats, Italian rye grass and blackgrass) have developed resistance to herbicides which can lead to poor control. Appropriate strategies for preventing and managing resistance should be adopted. These include: rotation of the herbicide used for weed control, adopting complimentary weed control practices, monitoring weed populations for herbicide resistance development and minimising the risk of spreading resistant weeds and seeds.
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 e ective weed control
Using the correct nozzles to maximise coverage • Application only under appropriate weather conditions

Sprayer Hygiene
Spray tanks, pumps, pipelines and nozzles should be thoroughly cleaned out after use. This is essential to avoid contamination from pesticide residues and traces of Surrender, as such residues may seriously damage crops sprayed later.

Mixing and spraying
Application Techniques
Surrender mixes readily with water and can be applied in spray volumes ranging from 80 - 400 L/ha (with a pressure range of 1,5-2,5 bars (20-35 psi)) using tractor mounted, knapsack, rotary atomisers and hand-held sprayers. Other specialised application equipment such as weed wipers and spot gun applicators, may be used where stated. All sprayers must be correctly calibrated under field or use conditions before application. Weedwipers are suitable for applications where weeds are growing above the height of the crop. Surrender should be tank mixed under agitation.

Tractor Mounted and Powered Sprayers
Half fill the spray tank with water. Add the appropriate amount of Surrender whilst gently agitating the tank. Add the remaining amount of water. To avoid excessive foaming, do not use top tank agitation (use of a defoamer may be necessary).

Medium Volume application (150 - 300 L/ha):
High water volumes (> 300 L/ha) should be avoided as these may lead to run-o from treated vegetation and result in reduced control. Low drift nozzles 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 appropriate nozzle selection and reduction of pressure. Low drift nozzles producing a medium spray quality (BCPC definition) should be used to minimise the risk of drift.

Knapsack Sprayers
The maximum individual dose for hydraulic knapsack sprayers must not exceed 22.5 g/l glyphosate.
Half fill the spray tank with water. Add the appropriate amount of Surrender whilst gently agitating. Add the remaining amount of water. When used at a walking speed of 1 m/sec with a swath of 1 m width, most knapsack sprayers deliver a 200 L/ha spray volume (10 L per 500 m2 ). When fitted with a low volume nozzle, knapsack sprayers typically deliver a 100 L/ha spray volume (10 L per 1000 m 2 ). The recommended application range is 80-300 L/ha.

Rotary Atomisers
Hand-held sprayers and tractor-mounted boom sprayers are suitable for use to apply a minimum spray volume of 40 L/ha. Ensure the droplet diameter falls within the range 200-300 µm for all rotary atomiser uses. Half fill the spray bottle with water. Add the appropriate amount of Surrender whilst stirring and then add the remaining amount of water and shake gently. Do not tank mix when using rotary atomisers.

Weed Wipers
Weed wipers may be used in any crop, provided that the wiper or chemical does not come into contact with the crop. Weed wiper applications must not exceed a 1:2 dilution with water for weed wiper mini applications and a 1:1 dilution with water for other types of wiper applications. Care should be taken to avoid dripping on to desirable vegetation.

Spot Gun Application
Individual weeds may be treated with a spot gun applicator. Apply 5 mL of spray to target weed, for example using a narrow cone TG-3 or TG-5 nozzle.

Cut Stump Application
The maximum concentration should not exceed a 20% solution in water (200 mL of product per litre of water). The solution should be applied to saturate the rim of the freshly cut surface. Treat as soon as possible after felling. A suitable soluble dye may be added for indentification.

Stem Injection
Cut one notch with a hatchet in trees up to 10 cm diameter and up to three notches in trees over 10 cm diameter. Apply 2 mL of undiluted solution to each cut.

Registered for culturesRate
Glyphosate who kills all plants1.5 - 10 l