Why does your Brassica Pigeon F1 Round Victoria have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The larvae of these flies live in the soil and feed on organic matter or fine root hairs of the cabbage. High moisture levels in the planting medium common in Brassica cultivation attract the adults, which lay eggs near the base of the plant.
The larvae of these flies migrate to the base of brassica plants to feed on the developing head or roots. The adults are small, dark flies that lay eggs in the soil or near the stem of the cabbage.
While primarily known for larvae inside leaves, the adult flies are tiny and dark. They oviposit in the leaf tissue of Brassica species, causing visible winding tracks (mines) which can attract other secondary pests.
Your plant might also be experiencing one of these issues:
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