composted chicken manure? Un-composted is very high in nitrogen and can burn up your plants. I would give it a bit sometimes it really does take time for those female blooms. Pollinating is a problem due to lack of bees, we are considering a single hive on our property, but if its anything like chickens we will have many more

Its a sad situation for sure. cucumber are the same, female flowers and need pollinating. Best of luck. OH also if you do pollinate by hand early morning when blooms first open is best.