We are increasingly testing with RT-PCR

10 april 2024

In many cases, testing plant material for viruses is done at Naktuinbouw with an ELISA test. In addition to ELISA, we also have (real-time) PCR tests available. In the coming period, our range of (real-time) PCR tests will continue to expand

New NAL Conditions on sampling

10 april 2024

As of October 1, 2024, new NAL conditions will come into effect. These changes specifically relate to the sampling module. Requirements have been added regarding the sampling of small seed lots, up to 30,000 seeds. Additionally, requirements for fruit sampling, compartment sampling, and pollen sampling have been outlined.

New Seed Extract (SE-PCR) test for onion, chives, garlic and leek

8 april 2024

Starting April 1, we can test the presence or absence of Xanthomonas axonopodis pv. allii on seeds of onion, chives, garlic and leeks. For this test we have chosen the fast, reliable and sensitive Seed-Extract PCR (ZE-PCR) method.

Annual Report: our highlights of 2023

20 maart 2024

Curious about what we did in 2023? The highlights of the past year are available for you in our online annual report.

New real-time RT-PCR tests for plant material for raspberry and blackberry

31 januari 2024

We introduce the new real-time RT-PCR for the detection of a set of viruses occurring in raspberry and blackberry.

New license for Post Entry Quarantine to import fruit varieties to the EU

30 januari 2024

For certain reasons the importation of plant material of fruit species to the EU is prohibited. EU regulators sets out higher phytosanitary risks measures to avoid introductions of (new) quarantine organisms to the EU. With a special license of the Dutch NPPO (NVWA), in most cases Naktuinbouw is able to import material with a Letter of Authority (LoA) through the Post Entry Quarantine (PEQ) facility.

SME Fund on online application European Plant Variety Protection

30 januari 2024

The SME Fund 'Ideas Powered for business' is dedicated to bolstering Intellectual Property (IP) protection for small and medium-sized enterprises (SMEs), thereby strengthening their market competitiveness. It is an initiative of the European Commission implemented by the European Union Intellectual Property Office (EUIPO). In 2024 there is €20 million available. Act quickly because of the first-come, first-served nature of the voucher allocation.

New real-time RT-PCR test for plant material Cannabaceae

29 januari 2024

As of January 1, we introduce a new real-time RT-PCR to test for the presence or absence of Hop latent viroid (HLVd) in hemp (Cannabaceae) plant material. This makes it possible to test all the pathogens mentioned below on this crop with real-time RT-PCR.

New real-time PCR tests for Ralstonia and Xanthomonas in Pelargonium

26 januari 2024

As of January 1, we are introducing a new real-time PCR for detection of Ralstonia spp. in planting material of horticultural crops and for Xanthomonas wilt in Pelargonium.

Program NAL Proficiency tests 2024 available

17 januari 2024

NAL authorizes company laboratories to perform seed quality testing. One of the components of monitoring test quality is the proficiency test. The program for the NAL Proficiency tests in 2024 is now available.

Potyvirus PCR test for Mandevilla, Oxalis and Scaevola

17 januari 2024

We no longer perform the Potyvirus tests with ELISA for the crops Mandevilla, Oxalis and Scaevola. The ELISA test does not adequately meet our test requirements for these crops as some Potyvirusses with ELISA could be missed. That is why Naktuinbouw Laboratoria has decided to stop offering this for these crops.

Adjustment of tests for tomato and pepper seeds for the Australian market

16 januari 2024

Naktuinbouw Laboratories recently received a notification from the Australian government that Naktuinbouw's protocols for direct seed testing by real-time RT-PCR for ToBRFV, ToMMV and Pospiviroids have been approved for tomato and pepper.

Restructuring customer contact and processes

16 januari 2024

One of the ambitions of Naktuinbouw is to work more customer-oriented. To realise this ambition, we worked on improving our customer processes over the past year. Starting from January 1st, we operate from units focused on the key customer processes, which are our daily tasks.

New Seed-Extract PCR (SE-PCR) tests for lettuce

15 januari 2024

As part of third country requirements, testing protocols have been developed and validated to determine the presence or absence of Xanthomonas hortorum pv. vitians (Xhv) and Pseudomonas cichorrii (PsChi) on lettuce seeds. For these tests is chosen for the fast, reliable and sensitive seed-extract PCR (SE-PCR) method.

Biodatabase replaced by OrganicXseeds

12 januari 2024

Naktuinbouw's Biodatabase has been replaced by the OrganicXseeds (OXS) database.

New Seed Extract (SE-PCR) tests for tomato and eggplant

12 januari 2024

We are introducing a new real-time RT-PCR to test the presence or absence of Pepino mosaic virus (PepMV) on seeds of tomato and eggplant. This test will replace the ELISA test as of January 1, 2024.

New real-time RT-PCR tests INSV and TSWV for plant material in horticultural crops

18 december 2023

We introduce the new real-time RT-PCR for the detection of INSV and TSWV in horticultural crops. Naktuinbouw Laboratories continues to support the sector by developing new tests to help diagnose plants with symptoms or to check for, and guarantee the absence of certain viruses.

New blotter method for testing cucurbit seeds

14 december 2023

As of January 1, we introduce a new blotter method to test for the presence or absence of Cladosporium cucumerinum on cucurbit seeds.

New Seed Extract (SE-PCR) tests for hemp and alfalfa

14 december 2023

We are introducing a new real-time RT-PCR to test the presence or absence of Alfalfa mosaic virus (AMV) on seed of hemp and alfalfa.

New Seed Extract (SE-PCR) tests for beet

13 december 2023

As of January 1, we will add beet seeds to our Seed-Extract PCR method for testing Tomato ringspot virus (ToRSV) and Tobacco ringspot virus (TRSV).

Reflections of expert John van Ruiten in magazine Seed World Europe

9 oktober 2023

The most recent issue (September 2023 - No. 3) of the magazine Seed World Europe includes an article in which our managing director John Van Ruiten was interviewed. They talked about various topics and developments in plant health as well as the new proposed EU legislation and its impact on the seed sector.

VCU now also possible for Hemp varieties for the production of seed and oil from seed

2 oktober 2023

Since this summer, an approved Dutch VCU protocol for hemp varieties for the production of seed and oil from seed is available.

Sending plant samples in Bioreba bags to Naktuinbouw Laboratories

6 september 2023

Five years ago Naktuinbouw Laboratories switched to the use of Bioreba bags for all leaf tests for PCR and ELISA testing. If the samples were not delivered in Bioreba bags, the costs (purchase of the Bioreba bags, the extra time and labour) to transfer samples into Bioreba bags were not charged to the client. This is going to change. As of January 1, 2024, there will be a handling fee for samples that not have been delivered in Bioreba bags. This handling fee is € 2.40 per sample.

Change email address team Resistance - Variety Testing

5 september 2023

Do you have questions or requests about resistance tests? From now on, please send this to the new email address:

Lower fees for genetic identification of raspberry and strawberry varieties this fall

1 september 2023

In recent years, Naktuinbouw has developed genetic identification tools for identifying raspberry and strawberry varieties. The delivery of samples for these tests takes place mainly in the autumn. As a result, Naktuinbouw can offer a lower fee for these crops in September and October.

From 1 October new set-up Plant Breeder's Rights training course

16 augustus 2023

Would you like to know more about Plant Breeders' Rights systems? Then follow our extensive and English-language online program about Plant Breeders' Rights. From 1 October 2023 you can start this training on 'Plant Breeders' Rights for food security and economic development' on a monthly basis.

Register now for the training course Seed Identification

2 augustus 2023

Our three days training course Seed Identification will be organized on 6-8th November 2023. Registration has been opened and is possible till September 1st 2023. There are still a few places available.

Nigerian delegation visits Naktuinbouw

7 juli 2023

A Nigerian delegation visited the Netherlands last week. Key officials from NASC and the Collaborative Seed Programme came to the Netherlands to learn from Dutch knowledge and experience about seed quality assurance systems. They started at Naktuinbouw on Monday 3 July.

INVITE annual meeting: data sharing and phenotyping

5 juli 2023

From 12 to 14 June, various organisations came together in Barcelona for the European project INVITE. More than 90 attendees from various institutions and organisations shared presentations of the studies and their conclusions and engaged in discussion. Naktuinbouw also took part.