Science Into Practice - Alternative herbicides for narcissus

The narcissus crop is grown for three or more years. Weeds reduce yield and quality of flowers (and bulbs), interfere with picking and bulb lifting, may delay maturity and have the potential to introduce pests and disease into the crop (some weeds are hosts of the stem nematode). Achieving a high level of weed control is therefore extremely important to Bulb growers.

Reduced herbicide availability will result in weedy crops. The crop loss depends on weed species present, but if weed cover prevents picking narcissus flowers or lifting and sorting bulbs because weeds clog machinery, crop loss will be 100 per cent. Although a desiccant is used to kill green weeds before bulb-lifting, any woody stems remaining of large established species (even mayweeds) wrap round the lifting machinery and cause extreme difficulty.

Project BOF 73 set out to identify alternative herbicides for weed control in narcissus crops with potential for specific off-label approvals following the loss or restriction of active ingredients such as metazachlor (Butisan S).


HDC Narcissus Technical Seminar, Duchy College, Camborne, Cornwall, 5 May

To book, email or call 0247 647 8677.

HDC Bulbs Panel Meeting, Spalding, 17 May

Technical matters: call 0247 647 8882 or email Communication matters: call 01732 897474 or email

GrowSave Second Annual Conference, Warwick, 18 May

For details, email or call 024 7669 6512.

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

Pest & Disease Factsheet - Peach leaf curl

Pest & Disease Factsheet - Peach leaf curl

Growers of fruit and ornamental trees need to be aware of this disfiguring disease.

Business planning - Demand management

Business planning - Demand management

Seasonal demand may be inevitable but peaks and troughs can be managed to minimise business impact, Neville Stein explains.



These heralds of spring are highly suited to being planted in tree circles, grass and rock gardens, says Miranda Kimberley.

Opinion... Get rid of plastics in Horticulture

Opinion... Get rid of plastics in Horticulture

Blue Planet II eloquently showed the rich tapestry of life in the oceans. It also focused public awareness on plastic pollution damaging wildlife.

Opinion... Gardening needs better promotion

Opinion... Gardening needs better promotion

British horticultural firms and organisations have not been the best at working together to promote our industry.

Opinion... A wish list for unblinkered thinking among our politicians

Opinion... A wish list for unblinkered thinking among our politicians

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

Horticulture Week Top 60 Ornamentals nurseries

See our exclusive ranking of ornamentals nurseries by annual turnover. 

Tim Edwards

Boningales Nursery chairman Tim Edwards on the business of ornamentals production

Read Tim Edwards

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

Are you a landscape supplier?

Horticulture Week Landscape Project Leads

If so, you should be receiving our new service for Horticulture Week subscribers delivering landscape project leads from live, approved, planning applications across the UK.

Peter Seabrook

Inspiration and insight from travels around the horticultural world

Read more Peter Seabrook articles