Yn ystod penwythnos yn dechrau 2 Tachwedd a’r dydd Llun canlynol, ymwelodd 344 o staff y Comisiwn Coedwigaeth â 970 o safleoedd i chwilio am arwyddion y clefyd.  Ymwelwyd â 4 safle ym mhob sgwâr grid deg kilometr yng Nghymru. Yn sgil hynny, anfonwyd samplau o 10 safle at FERA ar gyfer eu dadansoddi.  Dangosodd y profion hynny nad oedd y clefyd ar naw o’r samplau ond cafwyd canlyniad positif i un sampl.
Through the weekend commencing on 2nd November and the following Monday, 344 FC Wales staff were involved in the survey and visited a total of 970 sites to look for signs of the disease. The survey was based on visiting 4 sites within 259 ten kilometre grid squares across Wales and resulted in samples from 10 locations being sent to FERA for analysis. Nine of the samples were found to have no indications of the disease being present, however one sample was found to be positive.