Recommendation on seed health requirements
In order to supply sufficiently healthy vegetable seeds and in order to meet the requirements of EU Council Directive 2002/55/EC, Bejo uses various disease risk management strategies to prevent and control seed transmitted diseases. These may include and are not limited to seed health testing programs, protected seed production, field inspections, seed treatments and other effective seed disinfection methods.

ISHI-Veg*) has developed the Manual of Seed Health Testing Methods, which includes state of the art seed health testing protocols. Bejo follows the ISHI-Veg recommended minimum sizes of a representative sample for seed health testing.

*) Information regarding the ISHI-Veg seed health test protocols and recommended minimum sample sizes can be found at:


Xanthomonas campestris pv. campestris
Bejo Zaden test all seed lots of their Brassica varieties for the presence of Xanthomonas campestris pv. campestris, the causal agent of black rot. This is done by using a detection method according to a protocol approved by Naktuinbouw (Netherlands Inspection Service for Horticulture). Bejo Zaden has been accredited by Naktuinbouw to test according to the Naktuinbouw Accredited Laboratories (NAL) system. Only seed lots of which a representative sample has been found to be free of Xanthomonas campestris pv. campestris will be delivered.

G.M.O. (Genetically Modified Organism) declaration
All Bejo varieties mentioned at this website were obtained by using traditional plant-breeding methods. We have no genetically modified varieties available for commercial use.

Provision of Information (Article 14. General Terms and Conditions of Sale and Delivery of Bejo Zaden B.V)

  1. Information provided by the Seller in any form whatsoever is without commitment. Descriptions, recommendations and illustrations in brochures and leaflets are based as closely as possible on experiences in tests and in practice. The Seller in no event accepts any liability, however, on the basis of such information for different results obtained in the cultivated product. The Buyer must determine whether the products are suitable for the intended horticultural crop and/or can be used under local conditions.
  2. In the information provided by the Seller, the following meaning is given to the terms below:
  • 'Immunity': not subject to attack or infection by a specified pest or pathogen;

  • 'Resistance': the ability of a plant variety to restrict the growth and development of a specified pest or pathogen and/or the damage they cause when compared to susceptible plant varieties under similar environmental conditions and pest or pathogen pressure. Resistant varieties may exhibit some disease symptoms or damage under heavy pest or pathogen pressure.
Two levels of resistance are defined:
  1. high resistance (HR): plant varieties that highly restrict the growth and development of the specified pest or pathogen under normal pest or pathogen pressure when compared to susceptible varieties. These plant varieties may, however, exhibit some symptoms or damage under heavy pest or pathogen pressure.
  2. intermediate resistance (IR): plant varieties that restrict the growth and development of the specified pest or pathogen, but may exhibit a greater range of symptoms or damage compared to high resistant varieties. Intermediate resistant plant varieties will still show less severe symptoms or damage than susceptible plant varieties when grown under similar environmental conditions and/or pest or pathogen pressure.
  • 'Susceptibility': the inability of a plant variety to restrict the growth and development of a specified pest or pathogen.

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