Has anyone seen anything like this, NOT from hormone weedkiller.
Two out of three plants developed this way, but side shoots seem to
be normal. I have used no weedkiller near them, and suspect something
weather-related.

This isn't the first time I have seen this on cucurbits, and it seems
to be highly correlated with the source of the seed. I suspect a virus
in the parent plant, as it has happened to saved seed as well, but why
have they then seemed to recover.

http://imgur.com/kTRrnx3.jpg
http://imgur.com/OsYRN8s.jpg



Regards,
Nick Maclaren.