"David Hare-Scott" wrote in message
...
My zuccs have BER! As I understand it the problem is due to deficiency of
calcium in the plant which can be brought about by uneven water
availability or lack of calcium in the soil. Well my zuccs have not
been watered unevenly, they have neither been saturated not allowed to
wilt and they are well mulched. The soil has been amended with lime and
gypsum.

Could there be a problem with water penetration due to the mulch? I know I
have to be quite careful of mulch on our low pressure, gravity fed, country
water supply and fluff the mulch every now and then or otherwise the
watering isnt' even.