From the nursery - Updated labels

Neonicotinoids The deadline is almost upon us for products with ornamentals approvals containing thiamethoxam and imidacloprid.

Labels for Intercept 70WG, Intercept 5GR and Imidasect 5GR have been reissued by marketing companies with new statements on restricted use including "plants grown in media treated with this product may not be put outside until after they have finished flowering" and "this product may only be used in greenhouses". Make sure that you have copies of these new labels for MAPP numbers 14574, 15620 and 15617.

Changeable weather Warm days and cool nights can increase the risk of damage on soft growth. Make sure that fleece or Cosytex is available to cover vulnerable, saleable crops and that someone is accountable for doing it to avoid any unnecessary crop damage. Artificial covers help plants adjust slowly to changing temperatures. Applications of Cropaid or Frost Protect (Compo) may help to prevent damage before frosts set in.

Powdery mildew Persistent infections can be controlled at this time of year using food-grade potassium bicarbonate or Nimrod.

Soil phosphate levels This nutrient is easily locked up in soils and is not very mobile, so it can remain at high levels for many years. Carry out a basic nutrient test in fields where plants are looking pale and lacking vigour to see whether phosphate levels are to blame. High levels will suppress growth and plants’ ability to access trace elements such as iron.

Perennial weeds Apply Roundup now to persistent perennial weeds in established woody field-grown crops. Also, Chikara, Dow Shield 400 (EAMU 2013-0514), Sumimax (EAMU 2008-2881), products containing pendimethalin or Ronstar Liquid will provide good dormant season clean-up to selected plant genera. Some can be tank-mixed for more effective results. Make sure that soils are moist and fine for effective herbicide applications.

Phoma Still evident on ceanothus, viburnum and vinca. Control damage using Octave or Switch.

Autumn bedding Watch out for downy mildew on pansy and viola. Products for use now include Amistar (EAMU 2009-0443), Fenomenal (EAMU 2013-1990), Fubol Gold WG (EAMU 2012-0217), Pergado Uni (EAMU 2012-1605), Paraat (EAMU 2011-2585) or Signum (EAMU 2012-2141).

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

What do the latest growers' trials show on how to improve soil health?

What do the latest growers' trials show on how to improve soil health?

An Innovative Farmers conference in April heard how the network's programme of on-farm trials, or "Field Labs", involving around 1,000 farmers and growers is seeking usable practical findings that can be applied across farming.

Is leaving the EU an opportunity to harness the potential of agri-tech?

Is leaving the EU an opportunity to harness the potential of agri-tech?

A group of leading industry and research figures has agreed a series of agri-tech measures that will be recommended to Government as a means of making British farming more profitable and productive post-Brexit.

What do fruit and vegetable growers hope for from a renationalised farming policy?

What do fruit and vegetable growers hope for from a renationalised farming policy?

Defra's "Health & Harmony" consultation paper, which closed for responses this week, has given growers and their representative bodies a chance to shape the largest reformulation of farming and land-use policy in nearly half a century.


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

Horticulture Week Top UK FRUIT PRODUCERS

See our exclusive ranking of fruit producers by annual turnover. 

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