Leaf roll and marginal necrosis of a kava leaf (Piper methysticum), associated with infection of the leaf margins by a plant-pathogenic fungus, Mycosphaerella sp.
Leaf roll and vein clearing of a kava plant (Piper methyticum) associated with kava dieback disease cuased by cucumber mosaic virus (CMV).
Banana (Musa sp.) leaf rolled up with a small banana skipper (Erionota thrax) caterpillar inside.
Definition
Leaf roll is the upward rolling or curling of leaf blades.