Jonthe Fly wrote:
hope this helps....

http://www.nt.gov.au/d/Content/File/...t_Pest/479.pdf

Thanks. None of the listed ways that insufficient calcium would be
available seem to apply. I may just continue cutting most of them small
(zucchini flowers are very "in" you know) and leave a few to grow, or not,
and await developments.

David