zucchini on some plants turn yellow and die
I have about 12 plants with the leaves that are green w/white spots/stripes? the zukes are light green striped, on some plants the zukes turn yellow at about finger size and either die, rot at the bottom, or drop off, most other plants are fine grow nice size and tasty zukes...
What could be the problem? water one a week deep, from the bottom, on the really hot days of temp. 90-102 degrees I will water the next morning but not real deep.
any help appreciated live in north san diego county ,ca