Why does your Momordica charantia have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
These microscopic arachnids feed on the underside of bitter melon leaves, injecting toxins that cause stippling and produce characteristic fine silk webbing. In hot, dry conditions common to cucurbit cultivation, populations can explode rapidly.
While less common than spider mites, these eriophyid mites can cause fine webbing and leaf deformation in cucurbits. They thrive in high humidity and often cause the edges of the bitter melon leaves to curl or distort.
While primary symptoms are serpentine tracks, secondary fungal growths or silk-like exudates can sometimes mimic fine webbing as the larvae damage leaf tissue. This is highly prevalent in bitter melon crops in tropical regions.
Your plant might also be experiencing one of these issues:
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