End blossom rot on Zucchini waht to do (south, water, new)

[berries]

Them little fellers getabout 3 inches them the end turns yellow and they go south on me . Happening to over 50% of all my new tender little darlings. DO I have a water problem, mineral problem or a pollination problem. Not that I don't get enough of the guys anyway, but I hate to see em get started them not flourish. Feel like I am lettin em down., Suggestions???

[dandelion]

There's an old school remedy for this...tenderness and love to your wife leads to tender and robust zucchinis! OY Vey!!!!