Scarabaeid beetle of the genus Alissonotum

The genus Alissonotum belongs to the Scarabaeidae family within the order Coleoptera. These beetles are recognized as significant pests that primarily affect agricultural productivity in tropical and subtropical regions, particularly in parts of Asia.

The primary host for these insects is sugarcane. The larvae of Alissonotum reside in the soil profile, where they feed on the root systems of crops. This feeding behavior severely compromises the plant's ability to uptake water and nutrients, leading to reduced vigor.

Regarding their biology, these insects undergo complete metamorphosis. Adult beetles are primarily nocturnal and show high attraction to light sources, which can be utilized for monitoring programs. Females typically lay their eggs in soil rich in organic matter or close to the root zones of host plants.

The damage caused by Alissonotum is characterized by stunted growth and yellowing of foliage. Severe infestations can result in total root destruction, causing the plants to topple or die off entirely. This often leads to significant economic losses in commercial sugarcane production.

Management strategies for this pest include a combination of cultural and chemical control measures. Key practices are as follows:

• Implementation of systematic field scouting using light traps to monitor adult populations.
• Deep tillage to disrupt the larvae's habitat and exposure to natural enemies.
• Application of granular insecticides into the soil during planting to prevent early-stage damage.
• Use of biological control agents like entomopathogenic fungi to reduce soil-dwelling larval populations.