Why does your Pelargonium × hortorum Bailey have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The most common cause of tiny black flies around Geraniums, where adults are attracted to moisture and larvae feed on decaying organic matter and fine root hairs in overly damp soil.
While not a direct cause of flies, consistently wet soil in Zonal Geraniums creates the ideal breeding ground for fungus gnat larvae and promotes fungal pathogens.
Though usually found on foliage, certain aphid species can appear as small dark moving specks that may be mistaken for flies if they are congregating near new growth.
Your plant might also be experiencing one of these issues:
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