Why does your Zantedeschia Allure 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 thrive in the moist, organic-rich soil required by Calla Lilies. Their larvae feed on decaying organic matter and can damage the delicate rhizomes of 'Allure' cultivars.
Excessive moisture in the potting medium creates the perfect breeding ground for fungus gnat larvae. For 'Zantedeschia Allure', soggy soil also risks rhizome rot, which provides more organic decay for pests to feed on.
The use of overly decomposed compost or peat-heavy mixes in the Calla Lily pot can attract flies looking for a food source. These flies lay eggs in the top layer of nutrient-rich, moist substrate.
Your plant might also be experiencing one of these issues:
English
Italiano
