From the nursery

Windbreaks: If living windbreaks are trimmed during October make sure that the trimmings are removed and burned as they can be a source of both pest and disease to the crops beside them.

Scale: Control adult scale insects now before the mother sits on top of her eggs and dies. Use Calypso (SOLAs required), Chess WG (2008-2834), Decis, Savona or products containing nicotine. Spraying Oil will penetrate the shell and control the eggs underneath. It will also control adult mites starting to hibernate for the winter. For scale on bay trees consider Majestik or SB Plant Invigorator.

Leatherjackets: Cranefly larvae often cause damage to outdoor conifer and shrub liners. Drench with chlorpyrifos or Intercept 70WG.

What's in store? Check through your chemical store and make sure you have all the older products placed at the front of the shelf. You need to check the MAPP number on the bottle or packet to ensure correct rotation of use. Try to purchase only what you need for a month and re-order as needed to avoid having large quantities of pesticides, which these days can quickly become out of date. Check the dates of any that you are unsure about at and remember that some products may be replaced by one of the same name but with an updated MAPP number.

Phoma: Phoma is a common fungus that is still quite active on a range of nursery stock subjects. It is most commonly identified as a blackening of the stems part way down a shoot and the wilting of that shoot to the tip. It is controlled effectively by Amistar (SOLA 2009-0443), Cercobin WG (SOLA 2008-1384), chlorothalonil, Scotts Octave, Signum (SOLA 2009-1842), Swift SC (SOLA 2008-2882) or Switch. With growth now slowing down it is important, on susceptible species such as Ceanothus, Vinca and Viburnum, to apply before winter dormancy.

Autumn potting: Applying Wiltpruf S600 or Orosorb to plants such as Pieris after potting may help to control the level of transpiration and prevent the brown leaf tips that can develop on the foliage. Warm, sunny days this autumn could cause problems for newly potted stock so keep an eye on these plants, particularly any evergreen species. Make sure that autumn potted plants are in the right places for winter protection to avoid those last-minute changes as soon as frost appears. I find many plants are lost through a lack of planning.

  • John Adlam is managing director of Dove Associates.

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

Tractors: market roundup

Tractors: market roundup

Manufacturers are working to provide solutions to many challenges. Sally Drury looks at their newest models.

What does the Agriculture Bill mean for growers?

What does the Agriculture Bill mean for growers?

The publication of the Agriculture Bill this week formally kick-starts the Government's plans to implement a "green Brexit" for farming, the area of the economy most impacted by the UK's withdrawal from the EU from next March.

How might the Government's no-deal Brexit plans affect growers?

How might the Government's no-deal Brexit plans affect growers?

The Government maintains that a no-deal Brexit "remains unlikely given the mutual interests of the UK and the EU in securing a negotiated outcome". But it has begun publishing a series of "technical notices" intended to explain the consequences for all parts of the economy should no deal be agreed with the EU by March next year.

Follow us on:
  • Facebook
  • LinkedIn
  • Twitter
  • Google +

Horticulture Week Top UK FRUIT PRODUCERS

See our exclusive RANKING of UK Fruit Producers by annual turnover plus the FULL REPORT AND ANALYSIS.

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