Je was op zoek naar: rots (Engels - Wels)

in severe cases , this rots completely and the skin may crack
mewn achosion difrifol , mae hwn yn pydru'n llwyr a gall y croen gracio

andrew davies : i thank ieuan and mike for their approach on this matter , although i am disappointed that mike did not want to debate potato brown rot
andrew davies : diolchaf i ieuan a mike am y ffordd y maent wedi ymdrin â'r mater hwn , er fy mod yn siomedig nad oedd mike am drafod llwydni ar datws