BASF Agricultural Solutions UK


Serifel is a protectant biological fungicide for the reduction of fruit damage caused by Botrytis cinerea (grey mould) in protected strawberries, raspberries, blackberries, blueberries, loganberries and Rubus hybrid; the moderate control of Botrytis cinerea in protected tomatoes, aubergines, pepper and chilli pepper and the moderate control of Botrytis cinerea and Sclerotinia species in protected lettuce and other leafy crops.


  • Residue-free solution which allows for greater flexibility in application throughout the growing cycle
  • Rainfast within 3 hours of application
  • IPM compatible (safe on predatory mites Amblyseius swiskii, Phytoseiulus persimilis; the predatory bug Nesidiocoris tenuis and the parasitoids Diglyphus isaea and Eretmocerus eremicus)
Label Serifel Label
Safety data sheet Serifel MSDS
BASF Compatibility List Download here
 Technical Services Hotline +44 845 602 2553

Technical Services Hotline +44 845 602 2553

Technical Services Hotline

Why Serifel?

Product Profile

Active ingredient(s)
110 g/kg (5.5 x 1010 cfu/g) Bacillus amyloquefaciens strain MBI 600
FormulationWettable powder (WP)
Pack size0.5 kg in outers of ten
CropsStrawberry, raspberry, blackberry, blueberry, loganberry, Rubus hybrid, tomato, aubergine, pepper, chilli, choi sum, endive, lamb’s lettuce, lettuce, oriental cabbages, rocket, spinach and spinach beet
Disease activityBotrytis cinerea (grey mould) and Sclerotinia spp.
Maximum individual dose0.5 kg per hectare
Maximum number of treatmentsThree per crop
Latest time of application: strawberryGS 89 (fruit coloured at second harvest)
Latest time of application: raspberry etcNone
Latest time of application: tomato and other solanaceous cropsGS 89 (fruit with typical fully ripe colour)
Latest time of application: choi sum and other leafy cropsGS 49 (before flowering)
Water volume: tomato and other solanaceous crops200-3000 litres per hectare (use sufficient to ensure good crop cover)
Water volume: other crops200-2000 litres per hectare (use sufficient to ensure good crop cover)
Aquatic buffer zoneNone
Processed cropsConsult processors before use on crops grown for processing
Other specific restrictionsFor crops to which ‘permanent protection with full enclosure’ applies:
Treatment must only be made under ‘permanent protection’ situations which provide full enclosure (including continuous top and side barriers down to below ground level) and which are present and maintained over a number of years.
Reasonable precautions must be taken to prevent access of birds, wild mammals and honey bees to treated crops.
To minimise airborne environmental exposure, vents, doors and other openings must be closed during and after application until the applied product has fully settled.
The use of this product in recirculating water systems in a greenhouse may result in dilute pesticide waste that requires disposal. All dilute pesticide waste must be disposed of safely and legally to protect humans, wildlife and the environment, especially groundwater and surface water. Pesticide disposal advice is detailed in the ‘Code of Practice for Using Plant Protection Products (Section 5: Disposing of Pesticide Waste).

Why Serifel?

  • Serifel® forms a “shield of protection” against a broad spectrum of pathogens thanks to its three modes of action, enabling the production of top-quality produce with the lowest possible residues and helping to combat the development of resistance. ·
  • Serifel® allows flexible application throughout the growing period. It can be used on a wide range of crops:

Serifel® beneficial arthropod compatibility




How does it work?

Serifel® as a contact biological fungicide has multiple modes of action:

  • Production of antifungal metabolites - creates physical damage of pathogen cell membranes
  • Physical exclusion – excluding bacteria and fungi pathogens from space
  • Nutrient competition – excluding bacteria and fungi pathogens from food

Biological efficacy in the field. Botrytis cinerea on strawberries (protected)

Serifel® mode of action - Production of anti-fungal metabolites

Serifel® grows on the plant surface, reproducing cells which release metabolites, which disperse to create a zone of exclusion where pathogens cannot germinate or grow.

Serifel® positioning in strawberries against Botrytis

Mode of action video please click below: