When the good luck runs out, stem rust can destroy the entire harvest in an infected area.
"We have to prepare ourselves for the likelihood that swine flu will reach Guernsey, but it may not be in a way we initially expected, through travel to an infected area, " he added.
It is well known that partial culling creates an upsurge of disease due to perturbation of infected badgers, in other words increasing the movements of infection among the population by the badgers scarpering to neighbouring sets, potentially setting up a new geographically infected area.
According to the government's own bovine-tb-impact-assessment, the public costs of carrying out the cull exceed any money saved from predicted falls in bovine TB (an average 16% reduction in new cases over nine years - in absolute figures, this amounts to preventing 47 out of 292 infected herds, for an area about half the size of the Gloucestershire pilot zone).
An eight-year trial carried out in the 1990s showed that a sustained and coordinated culling of badgers can slightly slow down the rate of increase in cattle becoming infected with TB in the immediate area.
Antibiotics for the purpose of endocarditis prevention are still recommended for high-risk patients undergoing certain invasive procedures involving the dental area, respiratory tract and infected skin or musculoskeletal tissues.
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It also needs to be extremely thorough, as leaving infection in badger populations is unfair to the badgers that are to be born in the future, or which migrate over time into the cull area, as they will become infected by the populations that we haven't cleaned up.
It is understood the infected sheep came from Devon, one of the area's linked to the outbreak.
But in Wales the mood was not conciliatory as protesters at the Epynt army range in Powys vented their anger that animals infected with foot-and-mouth were being brought into an area so far untouched by the virus.
No area was immune from the rejected ballot problem - it was pervasive and infected all Scottish constituencies.
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