Why does your Canna hybrida Red Shades 857 have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Spider mites thrive in the hot, dry conditions often experienced by Canna lilies. They feed on the undersides of leaves, piercing cells and injecting saliva, which results in characteristic fine silk webbing across the foliage.
Similar to spider mites, these pests prefer the large, lush leaves of Canna cultivars. They create light webbing and can cause the red-pigmented leaves to appear dull or bronzed due to feeding damage.
While not a different species, extreme lack of humidity in Canna environments triggers rapid mite population explosions and increased webbing production. This is common when Cannas are kept in indoor settings or during heatwaves.
Your plant might also be experiencing one of these issues: