Why does your Begonia Benitochiba have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The presence of tiny black flies in begonias is almost certainly due to fungus gnats, whose larvae thrive in the moist organic matter used for Begonia Benichiba. The adults emerge to lay eggs in the top layer of the substrate, often triggered by frequent watering schedules.
Begonia Benichiba prefers consistent moisture but is highly susceptible to root rot if the substrate remains saturated. Constant dampness provides the ideal breeding ground and food source for fungus gnat larvae.
If using a peat-heavy or compost-rich potting mix, the decomposition of organic material can attract scavengers and provide nutrients for fly larvae. This decay creates a micro-environment that supports rapid insect population growth.
Your plant might also be experiencing one of these issues:
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