Why does your Capsicum annuum Salsa Multicolor GT36 have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The tiny black flies are likely adults of the fungus gnat species, which thrive in the moist organic matter found in pepper potting mixes. The larvae live in the soil and feed on decaying organic matter and fine feeder roots of the Capsicum plant.
While the flies themselves are pests, their presence often indicates an environment that promotes fungal pathogens like Pythium or Rhizoctonia. These fungi thrive in the same overwatered conditions that attract fungus gnats, leading to stem rot in young pepper plants.
Though usually larger, certain small dipterans can be mistaken for 'tiny black flies' if they are hovering near developing peppers. They lay eggs in the fruit, leading to internal rot that attracts more scavenging insects.
Your plant might also be experiencing one of these issues:
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