Cucumber vines produce both make and female flowers. The need bees to transfer pollen from the male flower to the female flower. If that doesn't happen the cucumber dies. Sounds like you had too few bees. You can pollinate the flowers using an artist brush. Pick up the yellow powder - the pollen, with the brush and transfer it to the female flower, the ones with tiny cukes. Planting a parthnocarpic cumberber, such as Diva, (Johnnys Seeds) is also an option. These vines only produce female flowers. Planting flowers to attract bees is also a possibility. And do not use pesticides. Happy Yardening, Nancy
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