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Emergency authorisation extends options for myzus persicae control in oilseed rape

The Chemicals Regulation Directorate (CRD) has granted an emergency authorisation for use of aphicide Teppeki (flonicamid) to control peach potato aphid  in oilseed rape.



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Since the suspension of use of neonicotinoid seed treatments the turnip yellows virus (TuYV) threat has increased as existing options available for control of the main vector, myzus persicae, are limited.

 

A neonicotinoid foliar spray applied at the cotyledon stage for flea beetle control is too early for aphid control and, as only one neonicotinoid application is allowed in the autumn on oilseed rape, an application at this timing would rule out any subsequent spray for aphid control later on, says Belchim Crop Protection marketing and development manager Simon Leak.

 

“As myzus persicae are resistant to all pyrethroids there are now very few options remaining for aphid control and TuYV reduction in the crop," he adds.

 

 

 


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