spider mites on Alocasia
Quick answer
If your Alocasia has spider mites, the most likely cause is: Applying Imidacloprid-based systemic granules to treat pests, which inadvertently increases spider mite reproduction rates.
Start here:
- 1. Stop using Imidacloprid (Bonide) if spider mites are the primary pest or are present alongside thrips.
- 2. Research shows Imidacloprid increases female spider mite fecundity (egg-laying).
Why Alocasia gets spider mites
Alocasia spp.
Applying Imidacloprid-based systemic granules to treat pests, which inadvertently increases spider mite reproduction rates.
Other documented causes on alocasia:
- • Spider mites (Tetranychus urticae) thrive in low-humidity conditions (<50% RH) common in heated homes, exploiting the mismatch between Alocasia's tropical native environment and indoor culture. Mites pierce leaf cells to feed, causing stippling that appears as pale dots on dark velvet leaves. Rapid reproduction (eggs hatch in 3 days) allows population explosions within 7-10 days of initial infestation.
How to reverse spider mites on Alocasia
- 1
Stop using Imidacloprid (Bonide) if spider mites are the primary pest or are present alongside thrips.
- 2
Research shows Imidacloprid increases female spider mite fecundity (egg-laying).
- 3
Switch to a dedicated miticide (like Spinosad, though technically a broad-spectrum, or specific acaricides), or use predatory mites (Phytoseiulus persimilis).
- 4
Thoroughly shower the foliage to physically knock down the mite population.
Keep spider mites off this Alocasia
Properly identify the pest before applying systemic treatments; systemics are for insects, not arachnids (mites).