Why does your Citrullus lanatus have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Pet FriendlySpider mites thrive in hot, dry conditions common during watermelon cultivation. They feed on the undersides of leaves, secreting silk that forms characteristic fine webbing and causing stippling (small yellow dots) on the foliage.
In watermelon crops, high mite populations create dense silk webs that can eventually cover entire leaf clusters. This reduces the plant's photosynthetic capacity and leads to premature leaf senescence.
While not a biological pathogen, extreme lack of humidity can cause some beneficial spider mite-predator populations to crash, allowing mite webs to become more visible. It can also lead to physical leaf curling that mimics webbed textures.
Your plant might also be experiencing one of these issues:
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