The Ministry of Agriculture, Forestry and Fisheries (MAFF) is moving ahead with plans to lift the import ban on fresh American potatoes, and comments on the topic by food journalist Rikiya Yamaji on TBS’s “THE TIME,” sparked a wave of reactions on 5channel’s News Speed+ board. The move to lift the ban began after a request from the US side in 2020, and this past August, 21 pests and diseases requiring quarantine consultation were identified. Among them is the “pale cyst nematode,” which has already caused damage within Hokkaido, and briefing sessions for producers began on September 1st. Opinions on the thread split over what’s really driving the move to lift the ban, and over how to weigh the fact that similar pest damage has already occurred in Hokkaido-grown potatoes.
Food journalist Rikiya Yamaji appeared via taped segment on TBS’s morning news program “THE TIME,” (weekdays, 5:20 AM) on the 4th, commenting on the Ministry of Agriculture, Forestry and Fisheries’ push to lift the import ban on fresh American potatoes.
Consideration of lifting the ban began in 2020 following a request from the US side, prompting MAFF to begin procedures. This past August, the ministry identified 21 pests and diseases requiring quarantine-measure talks with the US, and began briefing sessions in producing regions on September 1st. https://i.imgur.com/RuKGJMv.jpeg
At the briefing sessions, officials reported on progress such as the identification of the 21 pests and diseases requiring quarantine talks with the US, and farmers voiced worries about the risk of pest infestation once the import ban is lifted. Among the 21 is the “pale cyst nematode,” which has already broken out and caused damage within Hokkaido. There remains strong concern that if imported potatoes reach the market and get planted as seed potatoes, it could trigger the further spread of pests and diseases.
Source: sponichi.co.jp / Original article here
53AnonymousSep 5, 2026 06:17
What's even the point of importing these?
I mean, processed potato products already come in as a matter of course.
58AnonymousSep 5, 2026 06:22
Re: #53
Probably because Trump's been slapping tariffs on our export industries.
98AnonymousSep 5, 2026 06:49
This is actually pretty messed up, isn't it?
102AnonymousSep 5, 2026 06:51
So basically, just don't plant them as seed potatoes and there's no problem, right?
Is there really a farmer out there who'd knowingly plant ones carrying pests?
That farmer would have to be a total idiot.
107AnonymousSep 5, 2026 06:54
Re: #102
Since they're fresh, soil can stick to them and drop off anywhere, letting the pest breed.
It could turn up in city soil out of nowhere, and if someone's growing tomatoes there, it'll spread from there.
That's what makes this whole thing such a headache.
113AnonymousSep 5, 2026 06:56
Re: #107
They could easily end up used in home vegetable gardens.
I doubt you could enforce this thoroughly enough.
114AnonymousSep 5, 2026 06:57
Re: #107
But it's already occurring in Hokkaido-grown potatoes, isn't it?
Then stop distributing Hokkaido potatoes too.
115AnonymousSep 5, 2026 06:57
Re: #109
If it's processed there's no problem, so just have it imported already processed.
But do people even want cheap mashed potatoes or fries that badly? For that matter, do people even want potatoes that badly?
You wouldn't eat them even if they were cheap.
116AnonymousSep 5, 2026 06:59
Re: #115
If it's 800 yen for a 10kg box, I'd buy it by the box and make it half my staple food.
Though if it's pricier than that, it won't become a staple.
121AnonymousSep 5, 2026 07:04
Re: #116
You'll definitely get sick of it.
Try getting potatoes through furusato nozei (hometown tax donation gifts) and see for yourself.
No matter how tasty and good the potatoes are, eating them every day will leave you craving rice.
Leave them alone and they sprout, too — more of a hassle to manage than rice.
123AnonymousSep 5, 2026 07:06
Re: #121
People who are fine with bread or pasta could handle potatoes for one meal a day, no problem.
129AnonymousSep 5, 2026 07:08
Re: #121
If they're cheap, I buy a box every so often and eat them like crazy.
118AnonymousSep 5, 2026 07:00
If you want to ban American potatoes,
then ban Hokkaido potatoes too, since outbreaks are rampant there.
That's a double standard if I ever saw one.
Hokkaido contamination map
122AnonymousSep 5, 2026 07:05
The idiots who'd plant them as seed potatoes are the real problem, but…
why not just ban shipments into Hokkaido for now?
124AnonymousSep 5, 2026 07:07
Re: #118
That's exactly why they don't grow potatoes in that area anymore.
Managing things so other regions don't get contaminated is an enormous amount of work.
Japan goes to that much trouble to secure safe growing areas — you think America's putting in that same level of effort?
127AnonymousSep 5, 2026 07:08
Re: #122
Hokkaido is already the source of the outbreak.
Re: #118
142AnonymousSep 5, 2026 07:15
Re: #118
Exactly this.
America's way better off by comparison.
Japan as a whole is a mess.
125AnonymousSep 5, 2026 07:07
Re: #114
This is written as if Japan doesn't already have this nematode. Seriously misleading, borderline malicious reporting.
136AnonymousSep 5, 2026 07:12
Re: #125
Don't lump Japan's seriousness in with America's laxness.
And let me ask you this too — do you actually want to spread the damage even further?
141AnonymousSep 5, 2026 07:14
Re: #136
"Seriousness," when they're distributing Hokkaido potatoes to ordinary people on the mainland with zero announcement?
People in Tokyo have absolutely no clue about this (that Hokkaido is the outbreak source).
143AnonymousSep 5, 2026 07:15
Re: #141
TV will never, ever report on this.
152AnonymousSep 5, 2026 07:19
Re: #141
They either don't grow potatoes there anymore or only grow resistant varieties.
Nagasaki's had similar damage too and has developed resistant varieties of its own.
There's also speculation that a new strain might not be containable by the existing resistant varieties.
On top of that, in that area even tractors and shoes are banned from moving out unless fully disinfected first — rough even for a mini-truck.
That's the length Japan goes to for containment right now — is America doing anywhere near that much?
146AnonymousSep 5, 2026 07:16
Re: #129
You could just come pick some up from my place lol
I get given some but can't finish them all — turn your back and they've already sprouted.
Plenty of people give away the small ones since they can't be sold on the market.
150AnonymousSep 5, 2026 07:19
Re: #146
I just cut them up roughly, skin and all, microwave them, and eat them with a sprinkle of salt.
158AnonymousSep 5, 2026 07:23
Re: #150
Keep doing that and you'll get sick of it though.
Plus you only eat maybe two in one sitting, so in the end the only real option is giving the rest away too.
Adding mayonnaise or butter makes them tasty, but it's high calorie — eating them just makes me appreciate how great rice is.
Probably works out fine with a big family, but I'm living alone right now.
164AnonymousSep 5, 2026 07:25
Re: #158
You get sick of it because you assume you will.
Just chuck a bunch into miso soup and call it a meal.
Extravagance is the enemy, you know.
169AnonymousSep 5, 2026 07:27
Re: #158
Potatoes are apparently a staple food in Europe and Peru, so once you get used to it, it's probably fine.
Background and Key Points of the Discussion
The pale cyst nematode parasitizes plant roots; the bodies of dead females harden into “cysts” that protect their eggs for long periods, making the pest difficult to eliminate with ordinary pesticides or soil treatments. In Japan, outbreaks have already been confirmed in parts of Hokkaido, and strict containment measures — including restrictions on moving between farmland and disinfecting equipment — have long been in place to prevent further spread. The thread’s disagreement centered on how to weigh this existing domestic outbreak: some argued it’s inconsistent to single out American potatoes as the problem, while others argued that importing from the US, where controls are laxer, only adds to the risk. Some speculated the push to lift the ban is tied to tariff negotiations or security-related dynamics, but this remains speculation, not a fact confirmed by reporting. Japan’s domestic self-sufficiency rate for potatoes is said to be nearly 100%, and many questioned what price benefit importing would even bring.
*This article is an excerpted and summarized version of the 5channel (News Speed+) thread “US Potato Import Ban Lift’s Pest Risk, Food Journalist Warns: “Concern That Safe Products Will Dwindle and Prices Will Rise”.”
