Agricultural Solutions UK




Filan® is a protectant and systemic fungicide for use against early and late-season diseases in oilseed rape


  • Excellent performance against Sclerotinia
  • Light leaf spot resistance management tool
  • Yield benefit in absence of visible disease
  • Bee-safe to mix with pyrethroids at flowering

Product Profile

Active ingredient(s)50% w/w boscalid
FormulationWater dispersible granule (WG)
Pack size2.5 kg in outers of four
Crop(s)Winter and spring oilseed rape
Disease activitySclerotinia stem rot, dark leaf and pod spot, phoma leaf spot and stem canker
Maximum individual dose0.5 kg per hectare
Maximum total dose1.0 kg per hectare
Latest time of applicationUp to and including when 50% of pods have reached final size (GS 75)
Water volume220-400 litres per hectare
Aquatic buffer zoneNone

Why Filan®?

Filan® is a protectant and systematic fungicide for use in oilseed rape for the control of Sclerotinia stem rot (Sclerotinia sclerotiorum) and dark leaf and pod spot (Alternaria brassicae). A reduction in phoma leaf spot and stem canker (Leptosphaeria maculans) infection may also be obtained.

Time after time Filan has proven to be reliable against Sclerotinia, as recently demonstrated in a high disease Herefordshire AHDB fungicide performance trial in 2017, where fungicide persistence was really put to the test.

However, when it comes to Filan, there are other benefits to consider. It’s a key resistance management tool for light leaf spot; it has been proven to add 0.2t/ha in the absence of visible disease; and is a safe tank mix partner for pyrethroids at flowering.

Light leaf spot resistance management

Targeting light leaf spot (LLS) before stem extension is important to keep it off the upper canopy, but later in the year it’s critical to consider resistance management. LLS is polycyclic throughout the life of the crop and reduced sensitivity to azoles has been found. Given that LLS spores will still be present at flowering, it’s important to consider different modes of action to triazoles, such as boscalid.

Yield increase in the absence of visible disease

OSR leaves are twice as photosynthetically active as stems or pods and extensive ADAS research has shown that by maximising green leaf area & duration (GLAD), yield is increased. ADAS trials in 2017 confirmed that Filan® increases GLAD. Filan® contains boscalid, which reduces levels of the stress hormone ethylene, therefore making leaves greener for longer. For years we’ve seen this positive yield effect in the absence of visible disease, with a large database of 46 trials showing +0.2t/ha yield from Filan®

Our recommendations

- Use Sclerotinia monitoring bulletins as a guide on timing

- Sign up to BASF Real Results

- Use a long lasting boscalid containing product, like Filan®

Tank Mixing

Filan® can be used as a tank mix partner and is safe to mix with pyrethroids at flowering. Note: *‘Safe’ still means the mix should still only be sprayed when bees are not actively foraging. Also, if seed weevil control needed at late flowering, do not tank mix pyrethroid with triazoles.

Disease pressure performance

Filan® - performs under high disease pressure. There is good activity at lower doses, which is important for field performance – demonstrates persistence and compensates for poor coverage lower down in the canopy.

 Technical Services Hotline +44 845 602 2553

Technical Services Hotline +44 845 602 2553

Technical Services Hotline

Real Results: OSR Profitability

Real Results: OSR Profitability

Be part of the Real Results Circle and learn how to get the best out of your OSR crop.Sign up to our OSR Profitability initiative and receive advice from BASF and ADAS throughout the season to help maximise your OSR success.

Find out more
Green leaf area duration

Green leaf area duration

Here Julie Smith from ADAS explains how you can maximise your OSR yield by maintaining the green leaf area and how another boscalid containing fungicide Pictor has been proven to achieve this.

Watch now

Compatibility list

Click here to take a look at our latest compatbility list

Click here to download the compatibility list