Vixen
- Manufacturer
- BASF
- Category
- Herbicides
- Registered until
- N/A
- Registration number
- 13621
- Active materials
- picolinafen750 g/kg
Water dispersible granules containing 750 g/kg picolinafen. A herbicide for the control of broad leaved weeds in winter wheat and winter barley.
DIRECTIONS FOR USE
VIXEN is a herbicide with residual and contact activity for the control of broad leaved weeds for use pre or early post-emergence in winter wheat and winter barley.
Restrictions/Warnings
Do not use more than one application of VIXEN in one growing season.
Efficacy
For residual control some soil moisture is required for VIXEN. Best results will be obtained if rain falls within 7 days of application.
Residual control may be reduced:
under prolonged dry conditions
on soils with more than 6% organic matter
on soils with a high Kd factor
on soils where ash content is high
DO NOT disturb the soil after application.
Where cultural techniques which encourage the build up of organic residues in the surface soil are practised for a number of seasons, the effectiveness of residual herbicides may be reduced. In such circumstances periodic ploughing is recommended to disperse residues into a greater volume of soil.
Soil types
VIXEN can be used on any mineral soil.
DO NOT use on soils with more than 10% organic matter.
DO NOT use on stony or gravelly soils.
DO NOT use on water logged soil or soils prone to water logging.
Seedbed preparation
Trash and straw should be incorporated evenly during seedbed preparation.
Seedbeds must have a fine, firm tilth.
Loose or cloddy seedbeds must be consolidated prior to application, otherwise reduced weed control may occur. They may also cause seed to be inadequately covered which could result in crop damage.
Crop safety
Do not apply to crops suffering from stress, which may be caused for example by pests, disease, waterlogging, poor seedbed conditions, wind abrasion, nutrient deficiencies, or previous chemical treatment.
Water logging that occurs soon after pre-emergence applications may lead to crop damage.
For pre-emergence applications, seed should be sown into a fine firm seedbed so that seed is adequately covered with settled soil.
Only treat shallow drilled crops post-emergence. DO NOT soil incorporate.
Avoid spraying during periods of prolonged or severe frosts.
Avoid overlapping spray passes.
Some transient bleaching may be seen after application to some crops. This does not lead to yield loss.
DO NOT spray undersown cereals or those to be undersown.
DO NOT roll emerged crops prior to application.
DO NOT roll autumn treated crops until the spring.
Spray drift
Extreme care should be taken to avoid damage by drift on to plants outside the target area.
Weed Control
Susceptibility of weeds to single applications of VIXEN
For post-emergence applications best results will be achieved by application to small actively growing weeds.
Weed:Cleavers - MR up to 3 whorls
Rate:66g/ha
Critical Comments:MR up to 3 whorls
Application timing- Post-em of weed.
Weed:Common Chickweed
Rate:53g/ha
Critical Comments:S
Application timing- Pre-em of weed ;
Rate:66g/ha
Critical Comments:MS up to 2.5 cm
Application timing- Post-em of weed.
Weed:Common Field Speedwell
Rate:66g/ha
Critical Comments:S up to 5 cm
Application timing- Post-em of weed.
Weed:Field Pansy
Rate:53g/ha
Critical Comments:MS
Application timing- Pre-em of weed ;
Rate:66g/ha
Critical Comments: S up to 6 lvs
Application timing- Post-em of weed.
Weed:Ivy-leaved speedwell
Rate:53g/ha
Critical Comments:MS
Application timing- Pre-em of weed ;
Rate:66g/ha
Critical Comments:MS up to 4 lvs
Application timing- Post-em of weed.
Weed:Shepherd‘s Purse
Rate:66g/ha
Critical Comments:S up to 8 lvs
Application timing- Post-em of weed.
(S = Susceptible MS = Moderately susceptible MR = Moderately resistant)
Resistance
Strains of some annual grasses (e.g. Black-grass, Wild-Oats, and Italian Ryegrass) have developed resistance to herbicides, which may lead to poor control. A strategy for preventing and managing such resistance should be adopted. Do not use more than one application of VIXEN in one growing season. VIXEN is an inhibitor of carotenoid biosynthesis at the PDS step (a group that includes picolinafen and diflufenican). To prevent the development of resistant weeds herbicides with different modes of action must be used when applying in sequence. Guidelines have been produced by the Weed Resistance Action Group and copies are available from HGCA, CPA, your distributor, crop adviser or product manufacturer.
Crop specific information
Crops
VIXEN can be used on all varieties of Winter Wheat and Winter Barley.
Time of application
Pre- or post-crop emergence, up to before pseudo-stem erection (before growth stage 30).
Rate of application
Apply VIXEN at up to 66 g/ha in 200 litres of water per hectare.
Following crops
Following crops after normal harvest
There are no restrictions on following crops when VIXEN is used alone and the crop is harvested normally.
In the event of crop failure
In the event of crop failure, plough to at least 15 cm.
An interval of at least 8 weeks must have elapsed between using VIXEN and re-drilling further crops of wheat or barley.
Mixing and application
Mixing
Three quarters fill the tank with clean water and start the agitation. Remove the filter basket and slowly add the recommended quantity of VIXEN directly to the water in the spray tank.
Do not add VIXEN in a sudden, large quantity.
Do not wash VIXEN through the filter basket.
Replace the filter basket. Maintain the agitation and add the remainder of the water. Continue agitation until spraying is completed.
On emptying the container, rinse container thoroughly by using an integrated pressure rinsing device or manually rinsing three times. Add washings to sprayer at time of filling and dispose of container safely.
When tank mixes are to be used each product should be added separately to the spray tank and fully dispersed before the addition of any further product(s). Add products to the spray tank in the following order:
1. wettable powders (WP)
2. dry flowables or water dispersible granules (WG)
3. suspensions (e.g. CS)
4. suspension concentrates (e.g. SC or SE)
5. emulsifiable concentrates (e.g. EW or EC)
6. soluble concentrates (SL) Maintain agitation at all times. Spray out as soon as possible after mixing. Do not let the mixture stand.
Application
Ensure good, even spray cover of the target weeds by applying as a FINE or MEDIUM spray, as defined by BCPC. A travel speed of 6 to 8 km/h is advised for tractor-mounted and trailed sprayers. High speeds increase the risk of uneven cover due to excessive boom whip and bounce. The slower speed is recommended where the target is in a thick crop or weed cover is high, or where travel conditions are rough
Sprayer cleaning
After spraying, thoroughly clean and flush out application machinery with a minimum of three rinses, using a wetting agent or a proprietary spray tank cleaner to ensure that all traces of product are removed, particularly before using the sprayer in broad-leaved crops.
Compatibility
Contact your distributor or BASF representative for compatibility information.
Trademark Acknowledgements
VIXEN is a trademark of BASF
| Registered for cultures | Rate | BBCH |
|---|---|---|
| Winter barley | 66 g | 30 |
| Winter wheat | 66 g | 30 |