In article , paul
writes
is there any reason why my cucumber plants would be producing male flowers
by the dozen but not producing any fruit.

is there anything I can do to try and promote more fruit growth and less
male flower growth.

Cucumbers like high humidity and temperature. If they are in a
greenhouse, keep the lights mostly shut, but any tomatoes in there will
not like that.
--
Alan & Joan Gould - North Lincs.