From the nursery

Winter clean-up: With the milder winters, scale insects seem to be active for longer periods. Adult females lay their eggs under their shell and die on top of them; therefore, it is more difficult to control the eggs.

If you have active scale on bay, Hedera, Acer, olives, citrus or other crops, a spray of Croptex Spraying Oil will control both living adults and eggs. The oil penetrates the shell and controls the eggs underneath. It will also control adult mites and mite eggs starting to hibernate for the winter.

Tortrix moths: Tortrix caterpillars are still active on many nursery stock subjects. Spray with Toppel 10 or Decis but use Conserve, Dimilin Flo or Nemolt if you have a biological control programme still in operation. I find that selecting the correct pheromone for tortrix traps is critical and failure is usually due to using the wrong lure. If you are unsure which tortrix moth you have, try a different lure in different traps. There is an excellent website for visual identification of moths and larva at www.ukmoths.org.uk.

Botrytis: Keep up the inspections for Botrytis as the weather is still conducive to it. Make sure applications of Frupica, Rovral WP, Switch or Amistar are made with adequate wetting agent to get good foliage penetration on dense cropping. Keep the ventilation fans running in tunnels and glasshouses; this is one of the most important times for them to be fully operational.

Slugs: Apply slug pellets to Hosta, Bergenia, Cytisus and Choisya crops to avoid foliage damage. Use an agricultural mini pellet, which will give a better distribution and control in tunnels and container-grown crops than the traditional pellet. Consider switching to Ferramol pellets, which are less damaging to the environment and safer when used on display beds where the public and pets have access.

Cordyline, Phormium and Yucca: Make sure these plants are given a Scotts Octave spray this week to prevent the oval, purple-edged spots of Colletotrichum infections. Fusarium can also damage the base of these plants, particularly if water sits in the leaf bases and does not dry out over 24 hours. Scotts Octave will provide control.

Consultations: I know they seem a bind but the waste consultation is due for completion by 23 October and this is an important issue as it will affect some of your exemptions after October 2009. Take the time to go through it.


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

How big are the UK and Europe's apple and pear harvests likely to be?

How big are the UK and Europe's apple and pear harvests likely to be?

After a sizeable dip last year, Europe's apple harvest looks to be back on track, and could even break recent records. But the wider global situation means it should find a ready market.

What is the future for glyphosate?

What is the future for glyphosate?

The horticulture industry has defended glyphosate after a landmark US court case saw chemical company Monsanto ordered to pay $289m (£226m) damages to a groundskeeper who claimed herbicides containing glyphosate had caused his cancer.

Should more be done to address farm thefts and other crimes?

Should more be done to address farm thefts and other crimes?

The cost of vehicle thefts from farms is rising, while trust in the police's ability to deal with rural crime is in decline, two new reports show.


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