Melon beetles are mainly harmful in the dry season, active in the early morning or cool afternoon. The beetle damages by scraping the cuticle on the leaf in a circle, the part that is sniped off from the leaf. Melon beetles often cause damage on young plants, if the population is high, the melon beetles can eat all the leaves and young shoots, in addition to harming the leaves, the melon beetles also lay eggs in the soil, near the base, the eggs hatch into larvae. eating roots, boring into the root causes the plant to yellow, wilted, and underdeveloped.