Diseases and pests

January 30, 2023 | Blogs

Diseases occurring in the potato storage

Diseases that occasionally lead to considerable losses during storage include soft rot (Pectobacterium spp.), dry rot (Fusarium spp.), silver scurf (Helminthosporium), late blight (Phytophtora infestans), leak (Pythium) and pink rot (Phytophthora erythroseptica).

December 21, 2022 | Articles

Maintain Phytophthora resistance for future generations

Phytophthora is a difficult problem to deal with. Especially for organic farming where no synthetic crop protection products may be used, which is why Bionext has labeled a first generation of resistant varieties as ‘Robust’. This sounds promising, but there is still a great danger in this approach. The first generation of resistant varieties is…

January 24, 2022 | Blogs

How to prevent and control potassium deficiency in potatoes

The behaviour of potassium (K) in clay soils mainly depends on the clay content and the type of clay mineral. Soils with clay minerals mainly consisting of illite, such as in the Netherlands, supply K through weathering. From soils with clay particles mainly consisting of kaolinite K may easily be leached out. Also in sandy…

January 17, 2022 | Blogs

What are the effects and symptoms of potassium deficiency in potatoes?

Second to nitrogen, potassium (K) is adsorbed most by the plant and is essential for its normal growth and development.

January 10, 2022 | Blogs

About deficiency diseases in potatoes: Potassium deficiency

Potatoes need much potassium (K). Second to nitrogen, K is adsorbed most by the plant. Symptoms of K-deficiency are frequently found on loamy sand, marine clay and (heavy) river clay soils as well as on sandy and peaty soils. K-deficiency occurs mostly during the second half of the growing season, and then often during prolonged…

November 05, 2021 | News

CIP to release almost completely late blight resistant potato variety

As CIP prepares to release a potato variety with almost complete resistance to late blight, Peruvian farmers will soon have a new option for dealing with this devastating disease.