Farmers Guradian
Topics
Nine ways to keep your farm vehicles safe

Nine ways to keep your farm vehicles safe

Arable Farming Magazine

Arable Farming Magazine

Dairy Farmer Magazine

Dairy Farmer Magazine

British Farming Awards

CropTec

LAMMA 2019

New to Farmers Guardian?
Register Now
Login or Register
New to Farmers Guardian?
Register Now
New to Farmers Guardian?
Register Now

You are viewing your 1 free article

Register now to receive 2 free articles every 7 days
Already a Member?

Login | Join us now

‘Super pest’ now capable of surviving winter

A ‘super pest’ moth resistant to a class of common plant protection is now also capable of surviving through the UK’s cold winter conditions, according to new research.


Abby   Kellett

Twitter Facebook
Abby   Kellett
Twitter Facebook

Diamondback moth (DBM) caterpillars feed on crops including cabbage, broccoli and swedes, causing cosmetic damage, which could result in the loss of up to 100 per cent of the crop.

 

The pests, which have developed resistance to the pyrethroid class of plant protection products often have reduced fitness levels so do not survive through winter. However, experts from Rothamsted Research and AHDB are concerned that this is not the case with this new strain of moth.

 

Growers are being asked to submit samples of the DBM either when seen through winter, or in spring when numbers start to rise, to aid the continued monitoring and development of control strategies to manage the pest.

 

Dr Dawn Teverson, knowledge exchange manager at AHDB, says: “This new research reconfirms what we found last year – it is important that brassica growers are aware of this pyrethroid resistance and plan their crop protection programmes to treat against diamondback moths, accordingly.

 

“If pyrethroids are used, not only does this now fail to control DBM but it could also kill beneficial insect predators which would naturally help control the pest, further exacerbating the problem.”


Read More

Diamondback moth outbreaks expected to increase Diamondback moth outbreaks expected to increase
More pyrethroid-resistant Diamondback moths discovered More pyrethroid-resistant Diamondback moths discovered

Twitter Facebook
Post a Comment
To see comments and join in the conversation please log in.
Facebook
Twitter
RSS
Facebook
Twitter
RSS