Science Into Practice - Managing viruses in carrot crops

The principle viruses affecting carrot crops in the UK are parsnip yellow fleck virus (PYFV) and the carrot motley dwarf complex (CMD) consisting of carrot red leaf virus (CtRLV), carrot mottle virus (CMoV) and carrot red leaf associated RNA (CtRLVaRNA).

These viruses affect carrots sporadically, but when they occur they can have devastating consequences on the crops.

The objective of HDC project FV 382 was to ascertain the extent of the problem in the carrot industry to then identify better targeting of future developmental work to support the industry in managing carrot viruses.

The project aimed to ascertain the viral causes of symptoms in leaves and roots of UK carrot crops. Traditionally, root necrosis or browning were associated with the carrot strain of PYFV. Over the course of the past year, samples exhibiting internal browning have been diagnosed as being infected with CMD consisting of CtRLV, CMoV and CtRLVaRNA.

The survey tested approximately 50 samples gathered from the UK throughout the summer of 2010. The final report, now available on the HDC website, presented action points for growers and concluded that the development of internal browning symptoms in carrot is not solely a response to infection with viruses.

PYFV does not appear to be associated with root browning and virus combinations including CMoV are most commonly associated with root necrosis.

Dates for your diary

Narcissus Technical Seminars - Springfields, Lincolnshire, 14 April; and Duchy College, Cornwall, 5 May.

Horticultural Development Company

For details on all HDC activity, visit

Have you registered with us yet?

Register now to enjoy more articles and free email bulletins

Sign up now
Already registered?
Sign in

Before commenting please read our rules for commenting on articles.

If you see a comment you find offensive, you can flag it as inappropriate. In the top right-hand corner of an individual comment, you will see 'flag as inappropriate'. Clicking this prompts us to review the comment. For further information see our rules for commenting on articles.

comments powered by Disqus

Read These Next

What challenges and opportunities lie in store for tomato growers?

What challenges and opportunities lie in store for tomato growers?

The British Tomato Growers Association (TGA) conference today (21 September) heard a range of perspectives on what changes lie in store for the sector and how to anticipate them.

Buoyant demand for UK apples but frost and labour remain concerns

Buoyant demand for UK apples but frost and labour remain concerns

As the British apple season begins, English Apples & Pears (EAP) is warning that growers will feel the effects of both a late frost in spring and also constrained labour supply.

Tomorrow's tractors

Tomorrow's tractors

These machines have advanced rapidly over recent years but what does the future hold? Sally Drury looks ahead.

Follow us on:
  • Facebook
  • LinkedIn
  • Twitter
  • Google +
Horticulture Jobs
More 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