Burrowing bug

Systematic position: Pangaeus bilineatus belongs to the Cydnidae family within the order Hemiptera. These insects are commonly referred to as burrowing bugs due to their specialized adaptations for living underground and navigating through soil particles using their spinose legs.

Crops and impact: This pest is known to affect a wide range of economically important crops, including peanuts, beans, cotton, corn, and various vegetables. By feeding on the roots and underground stems, the bug stunts plant development and causes significant economic losses, especially during the early stages of crop emergence.

Biology and life cycle: The life cycle consists of egg, nymphal stages, and adult. Adults are typically black or dark brown, well-suited for subterranean life. They overwinter in the soil or protected debris and emerge in the spring to lay eggs near the root zones of preferred host plants, where nymphs then begin feeding immediately after hatching.

Damage characteristics: The damage is caused by the piercing-sucking mouthparts. As the bugs feed, they inject saliva into the plant tissue, causing localized tissue necrosis. This feeding habit disrupts nutrient and water uptake, leading to yellowing of foliage, wilting, and in severe cases, the complete death of the plant during seedling establishment.

Control measures: Management of Pangaeus bilineatus is challenging because of its hidden lifestyle. Integrated Pest Management (IPM) strategies include:

• Cultural practices like deep plowing to disturb habitats.
• Effective weed control to reduce alternative host plants.
• Rotation with non-host crops to break the life cycle.
• Seed treatments or soil-applied insecticides in highly infested fields.