Why does your Mini Rose Rosa Terrazza Golden have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The tiny black flies are likely fungus gnat adults, which thrive in the moist, organic-rich soil preferred by miniature roses. Their larvae feed on decaying organic matter and can damage the delicate root hairs of your Golden Terrazza rose.
Excessive moisture in the potting medium creates the perfect breeding ground for fungus gnat larvae. For a miniature rose, constant dampness can also lead to root suffocation and secondary fungal pathogens.
If using a potting mix with high amounts of peat moss or compost, the decomposing organic material serves as a primary food source for fly larvae. This attracts adults to lay eggs in the upper layers of the substrate.
Your plant might also be experiencing one of these issues:
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