Why does your Acer monspessulanum have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Spider mites thrive in warm, dry conditions and feed by piercing plant cells with their mouthparts. The fine webbing is a defensive silk structure they build to protect themselves and their eggs on the undersides of the leaves.
Common on deciduous trees like Acer, these mites cause stippling and fine silken webs. They are particularly active during heat waves which can stress the Montpellier Maple's foliage.
While thrips do not produce silk webs, their heavy feeding can cause leaf scarring that, combined with secondary fungal growth or high humidity, may appear as a messy, fine residue or web-like texture.
Your plant might also be experiencing one of these issues:
English
Italiano
