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).
DATES FOR YOUR DIARY
HDC Narcissus Technical Seminar, Duchy College, Camborne, Cornwall, 5 May
To book, email E:Kirsty.firstname.lastname@example.org or call 0247 647 8677.
HDC Bulbs Panel Meeting, Spalding, 17 May
Technical matters: call 0247 647 8882 or email email@example.com. Communication matters: call 01732 897474 or email firstname.lastname@example.org.
GrowSave Second Annual Conference, Warwick, 18 May
For details, email email@example.com or call 024 7669 6512.
Horticultural Development Company
For details on all HDC activity, visit www.hdc.org.uk