India: Punjab Sets Firm Planting and Haulm-Cutting Deadlines for Seed Potatoes to Keep Aphid-Borne Viruses Out
Key takeaways
- 15 October is the last planting date for seed potatoes
- 31 December is the deadline for cutting the potato haulms
- 77 days of growth for a crop planted and cut on time
- 5 senior officials signed the new seed potato procedure
Why it matters
- For farmers
- Seed growers in Punjab should plant before 15 October and plan haulm cutting before 31 December; late planting will shorten the season.
- For traders
- Buyers of Punjab seed can expect lots grown under a fixed virus-control calendar this season.
60-second summary
Punjab has put hard dates on its seed potato season. Under a procedure signed by the state's agriculture, horticulture and seed certification directors and two senior university scientists, seed crops must be in the ground by mid-October and have their foliage removed by the last day of the year. That leaves roughly 77 days of growth. The target is virus infection spread by aphids, including leafroll and PVY, which reaches the tubers late in the season. The text says seed health must rank above yield. Only a three-member committee can move the haulm-cutting date, using weather data, and it must decide by 25 December. Seed growers may lose some tonnage but gain cleaner seed, and buyers should see fewer virus problems in the next crop. The document reached the public through a trade website, carries no printed date and has not been posted on an official site.
Seed potato growers in the Indian state of Punjab must follow fixed dates this season. Planting must finish by 15 October. The haulms, or foliage, must be cut by 31 December. The rule applies to the whole state. The specialist site IndianPotato.com published the standard operating procedure on 24 September. The site said it had received the document on that day.
Five senior officials signed the document. They are the state directors of agriculture and of horticulture, the director of the state seed certification authority, and two officials of Punjab Agricultural University (PAU): the director of research and the head of vegetable science.
The purpose is to protect seed tubers from viruses. Aphids carry these viruses from plant to plant and into the tubers. The document names four viruses: potato leafroll virus, PVY, PVX and PVA. Early haulm cutting limits the time in which the viruses can reach the new tubers.
Weekdays. Unsubscribe in one click.
The rule puts quality before quantity. According to the document, “maintenance of seed health and quality shall take precedence over achieving higher tuber yield.” A crop planted by 15 October and cut by 31 December has about 77 days of growth.
Extensions are possible, but only under strict conditions. A state committee can recommend a later date for haulm cutting, based on weather data. The committee must decide by 25 December. Its members are the director of research of PAU, the head of vegetable science of PAU and the nodal officer for potato of the state horticulture department.
The original order has not been published on an official website. The document has no printed date.
Why it matters
Clean seed is the base of a healthy potato crop. A firm deadline for the whole state makes the rules the same for all seed growers in Punjab. Growers who plant late may lose some yield, but the state has chosen seed health over tonnage. Farmers who buy seed from Punjab may see fewer virus problems in the next crop. Our report on Punjab growers selling below cost ahead of planting was published on 24 September.
Prevention & control · Editorial note
Potato viruses (PLRV, PVY, PVX, PVA): what growers can do
- Prevention: plant certified, virus-tested seed; keep planting and haulm-cutting dates; remove infected plants early; control volunteers and weeds.
- Monitoring: use aphid traps and regular field checks; test seed lots for viruses.
- Chemical protection in India: no effective chemical control of the viruses; prevention only. For leafroll virus, aphid control with imidacloprid (IRAC 4A) or lambda-cyhalothrin (IRAC 3A) — check the national register of India.
- Resistance management: alternate IRAC groups; do not follow a 4A seed treatment with 4A sprays.
This note is provided by the potatoes.news editorial team for information only. It is not a recommendation of any company and is not mandatory. Use only plant protection products authorised in your country and follow the label. Product names and registrations differ between countries; consult a local agronomist.
Photo: A potato field in India (illustrative). Trikutdas / Wikimedia Commons, CC BY-SA 4.0
Global Potato Brief
Top five stories, prices, disease alerts and events. Weekday mornings, no advertising.
What next
A state committee may recommend a later haulm-cutting date based on weather data, with a decision due by 25 December. The original order has not been published on an official website.
Sources
- IndianPotato.com, 24 Sep 2026 — https://indianpotato.com/punjab-seed-potato-dehaulming-sop/
- ONE SOURCE: the procedure was published by a trade site; the original order is not available online and has no printed date. The Prevention & control note is editorial information only.
Linked in this material
- Country
- India
Related stories
Bangladesh: A Dispute Over Cold-Store Rent Turns Violent in Rajshahi as Fuel Costs Rise for Potato Growers
Kazakhstan: Wholesale Potato Prices Vary Widely by Region at Harvest, From 100 to 290 Tenge per kg
