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

Tomorrow's tractors

Tomorrow's tractors

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

Climbing roses

Climbing roses

Walls, trellises, pergolas and even trees can all be brightened up by these beautiful blooms, writes Miranda Kimberley.

Pest & Disease Factsheet - Mealybugs

Pest & Disease Factsheet - Mealybugs

Vines, tomatoes and tropical plants are among those at risk.

Opinion... Shining a light on trading with Europe

Opinion... Shining a light on trading with Europe

Accurate figures are notoriously difficult to get at, but without doubt the UK imports a great deal of its ornamental plant requirement.

Opinion... Unbeatable delight of quality plants

Opinion... Unbeatable delight of quality plants

Viewing top-quality plants, both growing and on sale, always gives me pleasure.

Editorial ... More analysis and insight from bumper HW issue

Editorial ... More analysis and insight from bumper HW issue

Welcome to this bumper 72-page July edition of Horticulture Week magazine, packed with exclusive analysis, insight and expert advice on the biggest issues impacting all sectors of the UK horticulture industry right now.

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

Tim Edwards

Boningales Nursery chairman Tim Edwards on the business of ornamentals production

Read Tim Edwards

Ornamentals ranking

Top 30 Ornamentals Nurseries by Turnover 2017

Top 30 Ornamentals Nurseries by Turnover 2017

Tough retail pricing policies and Brexit opportunities drive the top 30 growth strategies.

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