Hot weather spurs early appearance of mites and mildew

This month's ADAS Hardy Ornamentals Notes reports continued pest and disease problems.

The notes found that the weather has led to two-spotted spider mites appearing earlier.

Consultant John Atwood said: "Spider mites have increased in the hot weather, appearing earlier than normal. The problem was also bad last year. Plants under protection have been affected more, but there have been some cases outside as well."

The weather has also brought on powdery mildew earlier, with the disease hitting crops including clematis, hydrangea, lonicera, photinia, pulmonaria, potentilla, rosa, spiraea and verbena.

Aphids are continuing to dominate the pest scene with outbreaks in a number of plants, according to the consultancy. Plants affected include acer, cistus, chaenomeles, digitalis, euphorbia, fuchsia, helleborus, ilex, lavateria and lonicera.

However, aphid problems are in line with previous years. "Aphids have not been bad and certainly no worse than normal," said ADAS consultant John Buxton.

"The cold winter has actually made them a bit later than normal. I have seen other pests, such as spider mites, on the usual plants. Again, it doesn't seem much worse than normal which is a surprise considering the warmer spring."


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

Papaver

Papaver

These compact, brightly coloured flowers can be very attractive for impulse sales, notes Miranda Kimberley.

Fertilisers Special Report - invaluable nutrition

Fertilisers Special Report - invaluable nutrition

Using the right fertilisers on your crops can make all the difference when it comes to securing repeat customers, Sally Drury advises.

IPM Essen Show Preview - New look for top trade fair

IPM Essen Show Preview - New look for top trade fair

Venue modernisation will mean better display space for exhibitors at Europe's largest trade fair for the horticulture industry, says Gavin McEwan.


Opinion... Gardening needs better promotion

Opinion... Gardening needs better promotion

British horticultural firms and organisations have not been the best at working together to promote our industry.

Opinion... A wish list for unblinkered thinking

Opinion... A wish list for unblinkered thinking

Opinion... A wish list for unblinkered thinking

Opinion... A wish list for unblinkered thinking

Generations of ordinary British people have been let down by weak, visionless leaders -- politicians more engaged by the next election than our national best interest.


Follow us on:
  • Facebook
  • LinkedIn
  • Twitter
  • Google +
Horticulture Jobs
More Horticulture Jobs

Tim Edwards

Boningales Nursery chairman Tim Edwards on the business of ornamentals production
 

Read Tim Edwards

Ornamentals ranking

Top 30 Ornamentals Nurseries by Turnover 2017

Top 30 Ornamentals Nurseries by Turnover 2017

Tough retail pricing policies and Brexit opportunities drive the top 30 growth strategies.

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