"higgledy" writes:
No insecticides --plenty of bees.

You don't need bees for zucchini. The best stage to pick the fruit is
just after the flower goes limp (usually the day after it opened), the
fruit has maximum flavour at this size, about 5 inches.

ONLY if you intend leaving the fruit to reach a larger size do you
need the flowers to be pollinated. You can perform the pollen transfer
yourself if you can find a male flower open at the same time as the
female. The fruit will grow to a large size, and look impressive, but
it is tasteless in comparison with what it is just after the flower
opens.
--
John Savage (my news address is not valid for email)