Swiss chard – leaves look burned

I have swiss chard growing in a pot. Tag says it needs full sun but the leaves look burned when I put it in sun. It has good soil mix and a big enough pot. I don’t wet the leaves…

Distressing damage

Hi, I am a serious backyard Cabbagetown vegetable gardener, and already my beet, spinach and chard leaves are a mess with something I have never been able to identify. Might you be able to tell me what to do from…