About 98% of Norway's commercial potato area is sprayed against late blight, up to 16 times a season, as resistance and the EU_41 strain spread, NIBIO says.
Keeping soil near field capacity for 2–6 weeks after tuber initiation suppresses common scab; manure and undecomposed organic matter can make it worse.
Rosselkhoznadzor abolished the quarantine phytosanitary zone in the Yelizovsky district on 2 October after six years of annual testing found no Globodera rostochiensis on…
Switzerland tests dormant seed tubers for PVY by RT-qPCR, and Idaho is developing the same approach to replace its winter grow-out in Hawaii. Results…
Greece’s potato sector is at a critical juncture, with the deadly pathogen Synchytrium endobioticum—commonly known as potato chytrid—threatening the country’s most prestigious Protected Geographical…
AHDB, the University of Maine and the PNW handbook show why powdery scab and potato mop-top virus stay in soil for a decade or…
Extension services in the US and the UK show why hot summers favour Dickeya blackleg over Pectobacterium, and why seed testing with 400 or…
On 14 September 2026, the Rosselkhoznadzor Directorate for Oryol and Kursk Regions issued a warning to residents about a dangerous quarantine disease — potato wart.…
Trials in Kenya and Bangladesh show resistant varieties such as Kenya Mpya, Alouette and Sarpo Mira can hold late blight to very low levels…
Russian growers report watery rot even in crops lifted after full skin set in dry weather, and point to variety tolerance as the missing…
Egypt's Central Potato Laboratory tested 47 samples of 914 t of stored local seed for brown rot and 165 pivots on 16,714 feddans joined…
A Syngenta agronomist tells farmer.pl that some Polish lots reach 17–18% starch while others from the same fields have 13–14%, and some fail the…
Agriculture and Agri-Food Canada has started a national survey of potato pink rot to monitor fungicide sensitivity. Late-August rain left wet spots in fields…
Recombinant strains of potato virus Y now make up more than 90% of US isolates. In Washington trials, infected plants produced 22% to 32%…
Britain replaced the 1956 Smith Period with the Hutton Criteria in 2017. Tested on over 2,000 outbreaks, the new rule needs only 6 hours…
Canada's new bacterial ring rot directive for seed potatoes takes effect on October 12, 2026. It keeps zero tolerance and sets sample sizes of…
EU seed potato grades set virus tolerances from 0.2% for grade S to 6% for class B. Scotland prefers much stricter limits for PVY,…
EU rules for potato brown rot require 200-tuber tests, destruction of infected lots and a four-year ban on host crops on infected fields. Egyptian…
Research on drone and field cameras shows high accuracy for visible late blight. Early detection before spots appear is harder, and models trained in…
One of the most notable developments in the potato sector is the lifting of a ban on potato cultivation in the Central Saanich community…
The Republican Unitary Enterprise “Institute of Plant Protection” (Priluki) has issued a critical alert for the 2026 growing season following the detection of an…
Dry brown lesions with concentric rings on potato leaves point to Alternaria. Field diagnosis, differences from late blight, a control programme and the common…
From August 1 to 19, 2026, inspectors from Rosselkhoznadzor surveyed 452 hectares of potato plantings in the Staromainsky and Ulyanovsky districts of the Ulyanovsk…
A sweeping genetic survey of potato viruses across 18 Russian regions has revealed an alarming reality: the most destructive pathogen – potato virus Y…
In Belarus, where potatoes are a staple food, two formidable fungal-like diseases—late blight (Phytophthora infestans, literally “plant destroyer”) and early blight (Alternaria)—constantly threaten solanaceous…
Effective August 1, 2026, China has implemented stringent new phytosanitary measures to prevent the introduction of Candidatus Liberibacter solanacearum (CLso), a quarantine bacterium linked to…
A worrying outbreak of late blight (Phytophthora) has been detected in private household plots across the region—and this is particularly concerning because these small-scale…
According to the Omsk branch of the Rosselkhozcenter, potato fields in the region are facing a severe outbreak of phytophthora (late blight), a fungal…
Persistent heavy rains in Tatarstan have taken a severe toll on gardeners’ potato crops, leaving many plots in distress. In the “Pribrezhny” gardening community,…
The fight against the Colorado potato beetle in 2026 looks drastically different from a decade ago. Warmer winters, extended warm periods, and the beetle’s…
Researchers at the Institute of Agrobiotechnologies (Komi Scientific Center, Russian Academy of Sciences) have been experimenting since 2021 with a novel method of treating…
In Kenya, potatoes are the second most important food crop after maize, sustaining roughly 800,000 smallholder farmers and a vast value chain of transporters,…
Specialists from the Rosselkhoznadzor Administration for the Oryol and Kursk Regions have conducted inspections of potato plantings in the Kursk Region. The monitoring took…
In the highlands of East Africa, potatoes are a lifeline for millions of smallholder farmers—but late blight disease has long been their greatest enemy.…
Gardeners have discovered a simple, chemical-free way to combat the dreaded Colorado potato beetle, one of the most destructive pests for potato crops. According…
Marina Lazareva, a 10th-grade student at the Specialized Educational Scientific Center of Novosibirsk State University (SESC NSU), together with her scientific supervisors, has developed…
Russia’s North-Western Interregional Directorate of Rosselkhoznadzor has prevented the import of a large shipment of Egyptian potatoes weighing 302 tons into St. Petersburg. During…
Potato growers and industry representatives in Tasmania report that the mop-top virus is having very little impact on local agriculture. The virus was first…
Many gardeners wonder whether tomatoes and potatoes can be grown side by side. The clear answer is no, due to serious phytosanitary risks. Both…
In mid-April, inspectors from the Southern Interregional Directorate of Rosselkhoznadzor (Russia’s agricultural watchdog) inspected three shipments of potatoes with a total volume of 192.5…
The recent announcement from the UK’s Animal and Plant Health Agency (APHA) and the Department for Environment, Food and Rural Affairs (DEFRA) marks a…
For agricultural professionals, cultivar selection is a foundational business and agronomic decision. While marketing descriptions promise ideal performance, true resilience is proven in the…
As the North American potato industry navigates the heart of the 2025 storage season, a crucial educational intervention is on the horizon. Co-hosted by Spud…
In a significant advancement for sustainable agriculture, researchers from Guizhou University have decoded how oligochitosan (COS), a biological plant immune inducer, activates defense mechanisms…
The government of Prince Edward Island (PEI) is taking a decisive and costly step in its long-running battle against potato wart, a quarantinable pest…
A Dual Crisis: Plummeting Potato Prices and the Looming Threat of the Reed Glassy-Winged Leafhopper The latest harvest season has left German potato farmers…
A pioneering study published in BMC Genomics by researchers Whitehead, Karley, and Darby has shattered a critical assumption in pest management: that clonally reproducing potato aphids…
We all know heat and hail damage potatoes, but when these stresses occur may be more important than their intensity. This is the key finding from…
For potato growers and agronomists in Eastern Idaho, the 2025 growing season is presenting a significant challenge. Researchers with the University of Idaho Extension…
The regulatory landscape for nematicides has shifted dramatically, placing potato growers in a tight spot. The EU ban on aldicarb and severe restrictions on…
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