EAMU for Cuprokylt provides timely control against fruit tree canker

Apple and pear growers have been advised to take advantage of the three-month emergency authorisation for Certis' fungicide Cuprokylt for use against Nectria canker.

Image: HW
Image: HW

The 120-day EAMU (Extension of Authorisation for Minor Use) was secured by AHDB Horticulture last month and lasts until 14 July.

"Cuprokylt is a very important product that protects new infection entry points at key times in the season," according to Hutchinson’s horticultural agronomist Rob Saunders.

"The climate in the UK means that our orchards experience high canker infection pressure, and the newer varieties like Gala and Kanzi have little resistance to the disease," he said.

"Nectria canker can be particularly damaging in young orchards, as when a canker lesion is present in the central stem, it results in the loss of the tree. Some young orchards have suffered losses of up to 10% of the trees per year."

Canker infections can become established firstly in early spring during bud break where bud scales fall, leaving a scar, and more significantly during autumn, when falling leaves result in thousands of leaf scars. Being so numerous, these two routes exceed both fruit picking scars and pruning wounds in importance.

"Being able to apply Cuprokylt on these entry points is really important for reducing the possibility of a new canker infection taking hold," Saunders said.

Cuprokylt is a protectant fungicide containing 50% w/w copper oxychloride in a wettable powder formulation. A 50m aquatic buffer zone which must be strictly adhered to when applying.

It has also been granted a 120-day emergency authorisation from 15 May for control of blight in potatoes.

Have you registered with us yet?

Register now to enjoy more articles and free email bulletins

Sign up now
Already registered?
Sign in

Before commenting please read our rules for commenting on articles.

If you see a comment you find offensive, you can flag it as inappropriate. In the top right-hand corner of an individual comment, you will see 'flag as inappropriate'. Clicking this prompts us to review the comment. For further information see our rules for commenting on articles.

comments powered by Disqus

Read These Next

What challenges and opportunities lie in store for tomato growers?

What challenges and opportunities lie in store for tomato growers?

The British Tomato Growers Association (TGA) conference today (21 September) heard a range of perspectives on what changes lie in store for the sector and how to anticipate them.

Buoyant demand for UK apples but frost and labour remain concerns

Buoyant demand for UK apples but frost and labour remain concerns

As the British apple season begins, English Apples & Pears (EAP) is warning that growers will feel the effects of both a late frost in spring and also constrained labour supply.

Tomorrow's tractors

Tomorrow's tractors

These machines have advanced rapidly over recent years but what does the future hold? Sally Drury looks ahead.

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