Pumpkin beetle

The pumpkin beetle, scientifically known as Aulacophora foveicollis, belongs to the order Coleoptera and the family Chrysomelidae. It is a major agricultural pest that primarily targets cucurbitaceous crops, causing substantial economic losses in warm temperate and tropical regions worldwide.

This pest has a wide host range within the Cucurbitaceae family, including pumpkins, cucumbers, melons, watermelons, and squashes. Both adults and larvae contribute to the destruction of the plant: adults feed on foliage and flowers, while larvae reside in the soil and feed on the roots and the base of the stems.

The life cycle consists of egg, larval, pupal, and adult stages. Adult beetles typically overwinter in soil cracks or beneath plant debris. As temperatures rise in the spring, they emerge, migrate to host plants, and begin feeding and mating. Females lay eggs in the moist soil near the root zone of the host plants.

Adult feeding results in characteristic circular holes in the leaves, often leading to total defoliation of seedlings. The larval stage is particularly destructive, as the feeding on the roots and stems interrupts the flow of water and nutrients, causing the plants to wither, turn yellow, and eventually die during dry spells.

• Crop rotation with non-cucurbit crops to break the life cycle.
• Deep plowing in autumn to expose overwintering stages to cold and predators.
• Timely application of contact or systemic insecticides during early infestation.
• Use of trap crops or manual collection of beetles in small-scale plantings.
• Maintaining healthy plant vigor through proper irrigation and fertilization.