Borage Leaves - yellow patches?

[Heavenite]

Hi guys,

I'm growing my tomatoes with some borage in with it as a companion plant. For the most part, both are thriving, but the other day I noticed these yellow patches on a few of the borage leaves. The patches themselves are quite waxy. I originally thought it was just that the leaves might have been damaged/burnt, but after removing the yellowing leaves some more have started to do the same. Is this an infection/disease? Are there any ideas what steps need to be taken?

Many thanks!

P.s. I have googled this, but can't seem to find anything concrete.

[Fleurisa]

Could you have dripped some liquid feed onto the leaves?

[Trix]

I have no idea what this is but my sorrel did exactly the same thing when I planted it out. The leaves all started to look just like this then wilted away completely and I thought I'd killed it, but the plant survived and the new leaves coming through are looking a lot better. I put it down to watering/sun scorch...

[Scarlet]

Long shot as that patch is quite large - could it be leaf miner? What do the other leaves look like?

[Heavenite]

I don't believe it's liquid feed, as I there's slow release in the soil and if I do give them liquid feed, I don't use the rose and water at the base of the plants, but it's a definite possibility if I've been clumsy at some point!

I'm hoping it is just some scorching. I'll remove the damaged leaves and see if it continues to happen. Fingers crossed.

[taff]

Think it's leaf miner and then scorched.
It's normal.