Tocama similis

Tocama similis is a species of beetle belonging to the order Coleoptera and the family Scarabaeidae. This pest is distinguished by specific morphological traits and ecological habits characteristic of many chafers, making it an object of study for agricultural experts focused on preserving both orchard health and general plant vitality.

The list of host plants includes various woody species, ornamental shrubs, and several types of fruit trees. The larvae of this insect develop within the soil, feeding on plant roots, while adult beetles (imago) prefer to graze on foliage, which collectively causes significant physiological stress to the affected vegetation.

The biology and lifecycle of Tocama similis are closely tied to soil and environmental conditions. The life cycle undergoes complete metamorphosis, including egg, larva, pupa, and imago stages. Larval activity is most intense during the spring and summer months, as they feed on organic matter and root systems before transitioning to pupation deep within the soil profile.

The damage caused by this pest is manifested by stunted plant growth, chlorosis, and premature defoliation of mature trees, while younger seedlings may suffer mortality due to severe root system destruction. The economic impact increases during seasons that are particularly favorable for population growth, often reaching levels that require urgent intervention.

Protection and control measures require an integrated management approach, combining physical and chemical strategies:

• Deep autumn plowing to expose and destroy overwintering larvae.
• Application of biological agents, such as entomopathogenic fungi.
• Use of soil-applied insecticides when pest population density exceeds the economic threshold.
• Implementation of light traps to monitor and reduce the population of adult beetles.