On 5/12/2009 8:20 AM, David Hare-Scott wrote:
Jonthe Fly wrote:
On 4/12/2009 10:25 PM, David Hare-Scott wrote:
Jonthe Fly wrote:
On 4/12/2009 2:17 PM, David Hare-Scott wrote:
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

OK a longer check off list needs to be made it seems.
No heavy winds or sudden rain after a period of drought?

No, puzzling isn't it.

D
As you said you had record temperatures, could it be that these have
affected pollination at that crucial time.
I have the idea planted in the back of my mind somewhere, that
pollination stops when the temperature gets too high, and it may also
be that bees stop pollinating for the same reason....They slack off
on hot days....

This is true of some species such as tomatoes but I have not heard of it
regarding marrows. That doesn't mean that it isn't so.

David
This should cover it!

http://www.gardenersnet.com/atoz/pollenfaq.htm