Why does your Phalaenopsis Alicante have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
The production of fine, silken webbing is a classic hallmark of Tetranychidae (spider mites) feeding on the orchid's leaf tissue. These microscopic pests pierce the cells of the Phalaenopsis leaves to suck out fluids, often leaving behind tiny white speckles.
While often associated with more internal damage, certain mite species can create webbing-like structures or fine debris around the leaf axils and base of the Phalaenopsis leaves. These mites thrive in low humidity environments common in indoor orchid cultivation.
In cases of extremely high humidity and poor air circulation, certain fungal species can develop a thin, web-like mycelial growth on the surface of the leaves. This is often mistaken for insect webbing but lacks the structured, silk-like appearance of mite webs.
Your plant might also be experiencing one of these issues:
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