The pathogen causes plants to wilt and rotting in tubers, and its symptoms are almost indistinguishable from "traditional" blackleg, Pectobacterium atrosepticum.

A representative for the NFU said: "Evidence from other European countries suggests this species is more aggressive and can cause damage in a wider range of conditions and at lower bacterial loadings."

But growers can, said the NFU representative, minimise the risk of it spreading this year by:

  • Considering/requesting more information about the source and history of their potato seed inputs
  • Purchasing appropriate quality seed for further multiplication (however growers need be aware that high-grade seed status may not necessarily rule out the presence of D. solani)
  • Requesting a diagnostic test analysis to confirm D. solani is not present
  • Being aware of the terms and conditions governing potato seed sale

 

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