The spatial model predicted that strike
would begin to occur at temperatures above 9–10 ◦C and
this is consistent with the published range of threshold
temperatures for adult L. sericata development and oviposition
(Pitts and Wall, 2004; Broughan and Wall, 2007a,b),
This temperature threshold explains the progressive movement
of strike risk in the UK: North over Spring and
Summer months and its retreat South in Autumn and Winter.