Why does your Rubus idaeus have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Pet FriendlyThese arachnids thrive in warm, dry conditions and feed on the underside of raspberry leaves, injecting toxins that cause stippling and characteristic fine silk webbing. Large infestations can lead to premature leaf drop and reduced fruit yield.
While more common in buds, these microscopic mites can cause subtle webbing and discoloration on foliage during periods of plant stress. They are particularly destructive when they interfere with the development of fruit.
Extreme aridity can cause the plant to produce more trichomes or result in minor physical debris that mimics very fine webbing. While not a biological organism, dry conditions often trigger spider mite outbreaks simultaneously.
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