https://www.alchimiaweb.com/blogen/marijuana-hermaphroditism/
Stress, that highly increases the risk of hermaphroditism, may have several causes, such as:
Changes in the photoperiod, specially interruptions of the dark period during flowering
Too much heat (>27°C aproximately), wrong environmental conditions
Harvesting too late, when the grower misses the deadline for harvesting his/her plants
Mechanical stress: broken branches, damaged roots, pruning during flowering,…
Irrigation issues (lack or excess)
Over-fertilisation
Insects, mites, diseases…
Thermal stress (irrigating plants with cold water…)
Use of phytotoxic products (pesticides, fungicides…)
When the plant becomes hermaphrodite at full flowering, we have 2 options:
If the plant only produces few male flowers, we can remove them with a pair of tweezers (sterilized with alcohol), spraying water on them – water sterilizes pollen – and then watching for new bananas.
If the plant produces numerous male flowers, we should eliminate it from the growing space.