Hi all

My wallflower seedlings have fairly suddenly acquired small pale
"lesions" all over their leaves. I haven't noticed this in previous
years. Is this due to general distress (for example heat and drought),
or is it a pest?

Pictures are here at Tinypic: (sorry about Tinypic, which now seems to
be wall-to-wall ads and marketing traps -- used to be dead good and
simple!)

http://tinypic.com/r/29dxpp0/8

http://tinypic.com/r/2vllmxl/8

As a supplementary -- someone told me I'm supposed to pinch out
wallflowers ... haven't done this befo should I?

Thanks very much
John