Dung beetle

The genus Onthophagus belongs to the order Coleoptera and the family Scarabaeidae. These dung beetles are recognized for their role in waste decomposition, yet in intensive livestock farming, they can sometimes cause agricultural challenges by altering soil structure and pasture conditions.

These insects primarily impact pasture lands. While they do not consume crops directly, their intensive tunneling activities can damage the root zones of forage grasses. This soil disturbance can lead to patches of thin vegetation, reducing the overall biomass and nutritional value available for grazing animals.

The biological cycle of Onthophagus is strictly tied to organic waste management. Adult beetles locate manure, create tunnels, and bury the material to serve as a food source for their larvae. Eggs are laid within these buried spheres, allowing larvae to develop in a protected environment until they reach the pupal stage.

Harmfulness is mainly observed through the physical disruption of pastures and the potential for disease transmission. Because these beetles interact closely with livestock manure, they can act as vectors for various parasitic worms, transferring eggs into the soil and facilitating re-infection cycles among the grazing livestock.

Control measures primarily focus on field management practices. Frequent harrowing of pastures helps break up manure piles, causing them to dry out quickly and become unsuitable for egg-laying. Implementing strict rotational grazing schedules also prevents the concentration of dung, effectively managing the population density of these beetles.