Thanks.GillyBee wrote: ↑Wed Jun 21, 2023 6:30 am It's scab. RHS guide here:Scab is worst on dry or alkaline soil. Guess what I have? The pot of earlies in the greenhouse that I failed to water consistently got it. The volunteers in the compost heap are uaually fine while the ones behind the greenhouse are usually iffy thanks to the chalk soil.
Common scab organisms are everywhere so no point worrying about keeping it out of the compost or the allotment. Just have to grow resistant varieties and water more carefully than I did.
I was reading about scab and wart and for a while thought it was wart.... But Wart is very rare, so I concur it's scab.
Tiny sample size, but the ones that got it were Desiree and the ONE that didn't was Pentland Javelin. In the same compost!
The Coir compost drying out was probably what sealed its fate.