Why does your Mini Rose Terra Ovation have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The tiny black flies are likely fungus gnat larvae or adults, which thrive in the moist, organic-rich soil typical for miniature roses. They lay eggs in the top layer of substrate, and their larvae feed on decaying organic matter and fine root hairs.
Miniature roses like 'Terra Ovation' require well-draining soil; constant moisture creates the perfect breeding ground for pests and promotes fungal growth. Excessively wet soil attracts gnats and can lead to secondary issues like root rot.
A high concentration of decomposing peat or compost in the rose pot provides a nutrient-rich environment for fly larvae. As this organic material breaks down, it releases gases and moisture that attract adult flies.
Your plant might also be experiencing one of these issues:
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