Why does your Hibiscus rosa sinensis Cheerleader Pink Red Eye 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 required by Hibiscus. Their larvae feed on decaying organic matter and can damage delicate feeder roots of the 'Cheerleader' cultivar.
Excessive moisture in the potting medium creates an ideal breeding ground for fungus gnat larvae. Constant dampness can also lead to root suffocation in Hibiscus, making the plant more susceptible to pests.
If the potting mix contains large amounts of uncomposted peat or mulch, it provides a nutrient-rich habitat for flies to lay eggs. Hibiscus prefer well-draining soil, but high organic decomposition attracts these pests.
Your plant might also be experiencing one of these issues:
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