Cape gooseberry growers unable to prevent flower and fruit drop after pollination

Home and commercial growers of Physalis peruviana experience consistent crop failure when flowers and developing fruit drop shortly after successful pollination, resulting in zero yield despite proper pollination occurring. Existing gardening resources and general horticulture guides lack specific diagnostic information for this species, leaving growers unable to identify whether the cause is nutrient deficiency, environmental stress, pest damage, or genetic incompatibility, forcing them to restart growing cycles repeatedly.