1 March - Whitefly & pruning

Pruning Clear and burn ?prunings to prevent early, unnecessary fungal infections on vulnerable crops. Use the relevant Agricultural Waste exemptions D7, T6, U10 or U12. More information at www.gov.uk/manage-waste-on-land-guidance-for-land-managers#waste-use-treatment-recovery-and-disposal.
?
Buffer zones Note that some newly issued pesticide labels now detail information on arthropod buffer zones in addition to aquatic buffer zones. These arthropod buffer zones can be either 5m or 6m wide and either statutory or advisory. Check the label carefully — "respect" or "do not" mean that the buffer zone is statutory, while "avoid" means it is advisory but may require supporting evidence should it not be followed.
?
Dianthus Check crops for Fusarium infections — patchy dieback showing as brown, dead foliage. Remove any dead or dying plants and then apply a directed spray to the crowns of the rest of the crop with Prestop (EAMUs required), Serenade ASO (EAMUs required) or Switch. Also control any sciarid populations, which can spread this disease, using one of the following: Atheta, Hypoaspis, Macrocheles or consider also Steinernema feltiae nematodes.
?
Rust Check Mahonia ‘Apollo’ and Bellis for early rust infections on protected crops — spray Reflect (EAMU 2016-1602), Switch or Signum (EAMU 2012-2141) if seen. Do not spray if a frost is predicted that night, or foliage damage may occur.
?
Weed control Control weed growth on cleared container beds with a tank-mix of glufosinate-ammonium or Reglone plus Venzar Flowable or Flexidor. These product combinations will burn ?off any weeds present and help prevent re-emergence this spring. Clean up liverwort with Mogeton (EAMU 2015-2273).
?
Adelgids Check Abies, Picea, Pinus, Pseudotsuga, Juniperus and Larix for the white fluffy deposits exuded from pests’ bodies. The pineapple galls that develop later on contain young nymphs so control is important now to keep plants clean. Apply Decis or Hallmark WZT (EAMU 2008-2944) plus a wetting agent (depending on product formulation and instructions) to penetrate the "wax". Sooty moulds that can grow on the honeydew can be controlled using Rovral WG (EAMU 2011-3200) or Switch.

HorticultureWeek.co.uk/nursery


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

Euonymus

Euonymus

These evergreen and deciduous shrubs feature bright foliage, corky bark and coloured fruit, says Miranda Kimberley.

Horticulture Week Business Award - Horticulture Week Most Admired Business Leader Award

Horticulture Week Business Award - Horticulture Week Most Admired Business Leader Award

Winner - Steve McCurdy, Majestic Trees

Horticulture Week Business Award - Best Business Refurbishment, Refit or Extension

Horticulture Week Business Award - Best Business Refurbishment, Refit or Extension

Winner Longacres Bybrook Barn, Longacres Garden Centres


Opinion... How to increase UK plant supply

Opinion... How to increase UK plant supply

Why don't UK growers produce more of the plants that the UK market demands?

Opinion... Co-operation is industry's best card

Opinion... Co-operation is industry's best card

What a great trade this is when one of us needs help. "The Container Revolution" co-operative exhibit at the RHS Chelsea Flower Show is a good example.

Opinion... Bridges needed across the sectors

Opinion... Bridges needed across the sectors

Horticulture Week's careers guide (HW, April 2018) is a revealing insight into what constitutes "a horticulturist". Horticulture is a coherent discipline.


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