Both the adults and larvae of the leaf-eating ladybird (Epilachna 28-punctata) feed upon leaf-surfaces, producing a lace-like pattern, and the infested leaves eventually become skeletonised and withered. The ladybirds attack the foliage of cucumbers, marrows, pumpkins and other related vine plants, potatoes, tomatoes and sometimes beans. In addition, they also develop upon a number of weeds, including the false nightshade, false castor oil, and paddymelon.

The eggs are deposited in small groups usually upon the lower surfaces of the leaves, where most of the grub feeding occurs. When fully-fed, the larvae congregate in number on the foliage of their food-plant, attach themselves to the leaf-surface, and there enter their pupal or chrysalis stage. The last larval skin remains attached around the end of the pupa.

The adult ladybird feeds mostly on the upper surfaces of the leaves.