Why does your Mini Rose Sunny Jewel 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 feed on the fine root hairs of miniature roses, potentially causing stunted growth and yellowing leaves.
Miniature roses require well-draining soil, but constant dampness creates the perfect breeding ground for fungus gnat larvae and other soil-borne pests. Overwatering can also lead to root rot, making the plant more susceptible to pest infestations.
If there is a buildup of decomposing mulch or old fallen leaves at the base of the Sunny Jewel, it provides a nutrient-rich habitat for fly larvae. These flies thrive in environments with high microbial activity and decaying plant tissue.
Your plant might also be experiencing one of these issues: