Resilient spinach varieties

13 May 2024 News

Resistant spinach varieties


At Enza Zaden, we have a complete spinach portfolio resistant to the new strain Pe:20

With this new resistance, all our spinach growers are covered!

The International Working Group on Peronospora in Spinach (IWGP) announced on May 13th the identification of a new race Pe: 20 of the downy mildew pathogens (Peronospora effusa) affecting spinach. The determination was based on a comprehensive review of isolates collected from growers' fields and experimental markets worldwide.

New announcement: Pe:20

The emergence of this new type of fungus threatens the global spinach industry, making the development of resistance against this strain of fungus an urgent priority. As a member of the IWGP, we identify new isolates using the standard host differential set.

After testing our portfolio, we conclude that our current spinach portfolio has proven resistant to this new strain, Pe:20, which means a wide range of solid varieties with excellent field performance, outstanding post-harvest quality and complete resistance to all official Pe strains.

To recognize our complete resistance varieties, find out our label

PE – what is it? And how does it affect spinach?

Peronospora effusa (PE) - downy spinach mildew, caused by the obligate oomycete pathogen, leads to notable economic losses due to the disease's impact. We promote an integrated strategy for managing resistance, where utilizing resistant varieties is crucial, alongside disease control measures and hygiene practices. The prevention of mildew in crops and the development of new strains can be accomplished by using proper hygiene techniques, such as removing debris and diseased plants.

Resistance Makes the Difference

Resistance plays a crucial role in ensuring successful production of leafy crops. In our commitment to adding value across the entire agricultural chain, from growers to consumers, we emphasize the importance of leafy crops' resistance against spinach downy mildew. 

On the other hand, resistances offer a great advantage to growers with lower inputs, higher yields, and reduced risk of crop loss. For retailers and processors, resistance means high-quality products with longer shelf-life. On the other hand, to the final consumers, resistances guarantee healthier products and chemical-free vegetables, avoiding food shortages. That's why our dedicated breeders continuously monitor the changes in the spinach population in response to increased resistance, ensuring that our varieties provide optimal protection.

For more information, read the full press release of IWGP