Why does your Mini Rose Sweet Cupido 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 lay eggs in moist organic matter. Their larvae live in the soil of your Sweet Cupido rose and feed on decaying organic material and fine root hairs, potentially damaging the miniature rose's shallow root system.
Excessive moisture in the miniature rose pot creates an ideal breeding ground for fungus gnat larvae. Sweet Cupido roses are sensitive to 'wet feet,' and constant dampness encourages the cycle of these flies.
Potting mixes containing high amounts of peat moss or compost provide the perfect nutrient source for fly larvae. If the substrate is too rich and stays damp, it attracts these pests to the miniature rose container.
Your plant might also be experiencing one of these issues:
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