Autoserica fuliginosa

Systematic position: This insect belongs to the order Coleoptera and the family Scarabaeidae. As a member of the Autoserica genus, it is often categorized as a soil-dwelling pest that poses significant risks to various agricultural and horticultural crops.

Host plants: The pest primarily attacks the root systems of various vegetables, seedlings, and ornamental plants. It is particularly damaging in nurseries and during the early establishment phase of crops when plants are most vulnerable to root destruction.

Biology and life cycle: The life cycle comprises four distinct stages: egg, larva, pupa, and adult. The larval stage is the most destructive, spending its time underground and feeding on organic matter and living roots. The adults are beetles that typically emerge in the evening and may feed on foliage.

Nature of damage: Larvae cause significant damage by severing root systems, which leads to plant wilting, stunted growth, and eventual death. In severe infestations, the crop density is significantly reduced. Adult beetles may also cause secondary damage by defoliating parts of the plant, reducing photosynthetic activity.

• Deep autumn plowing to expose larvae to natural predators and weather conditions.
• Application of soil-incorporated insecticides at the time of planting or seeding.
• Using entomopathogenic nematodes as a biological control agent for larvae.
• Maintaining healthy crop rotation to break the pest's lifecycle.

Management strategies: Effective management requires an integrated approach. Because the larvae remain hidden in the soil, monitoring adult beetle populations using light traps or pheromone cues is essential to predict infestation levels and implement timely control measures before significant damage occurs.