Why does your Brassica Songbird F1 Round Pink have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
These tiny black flies thrive in the moist, organic-rich soil preferred by ornamental Brassicas. The larvae feed on decaying organic matter and fine root hairs, which can weaken the plant's structural integrity.
While usually sedentary, these small dark insects can appear as moving black specks on the underside of Brassica leaves. They suck sap from the tender foliage, causing stunted growth and leaf curling.
Similar to fungus gnats, these flies are attracted to the high humidity often found around dense ornamental kale clusters. They thrive in soil that stays consistently wet, which is common in decorative container plantings.
Your plant might also be experiencing one of these issues:
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