Views differ on source of blame for potato blight problem

The question of who is to blame for the apparent spread of potato blight from amateur growers' crops to commercial production has brought opposing views.

Sarvari Research Trust (SRT) director Dr David Shaw said such a spread was probable. "Most amateurs do not spray and, in a year like this, their crop gets totally blighted and spores drift off to infect healthy potatoes."

But he added: "Professionals do not grow resistant varieties. Why would they do that when you can make a variety resistant if you keep it sprayed? The problem is that continuous wet weather prevents the spray tackle getting on the field every four or five days so chemical control is less than 100 per cent - and some of the newest varieties grown for the supermarkets are very susceptible."

Amateur-gardening supplier Thompson & Morgan said in a statement: "It seems unlikely that the blame can be put on any one set of growers. Ironically, in the past potato farmers were blamed for causing blight problems for gardeners by leaving diseased plants and tubers in or on fields, enabling spores to reproduce and spread."

The firm has urged amateur growers to choose Sarpo and similar blight-resistant varieties bred by the SRT.

Earlier, Potato Council corporate affairs manager Maria Ball blamed gardens and allotments for "a disproportionate amount of overall blight pressure". The group's chairman Allan Stevenson added: "It would be preferable if people bought healthy, well-produced potatoes from their retailer, rather than grow their own."


Have you registered with us yet?

Register now to enjoy more articles and free email bulletins

Sign up now
Already registered?
Sign in

Read These Next

Business Planning - Brace now for Brexit impact

Business Planning - Brace now for Brexit impact

Neville Stein advises how businesses can act now to protect themselves against higher plant import costs after the Brexit deadline.

What do Stockbridge's new research facilities offer the industry?

What do Stockbridge's new research facilities offer the industry?

What should be done to ensure sustainable growth in English wine?

What should be done to ensure sustainable growth in English wine?


Follow us on:
  • Facebook
  • LinkedIn
  • Twitter
  • Google +

HORTICULTURE WEEK BUSINESS Awards 2019

The Horticulture Week Business Awards is now open for entries

Horticulture Week Top UK FRUIT PRODUCERS

See our exclusive RANKING of UK Fruit Producers by annual turnover plus the FULL REPORT AND ANALYSIS.

Horticulture Jobs

Pest & Disease Tracker bulletin 

The latest pest and disease alerts, how to treat them, plus EAMU updates, sent direct to your inbox.

Sign up here

Professor Geoffrey Dixon

GreenGene International chair Geoff Dixon on the business of fresh produce production
 

Read Professor Geoffrey Dixon