The increasing ecological and economic costs of synthetic pesticide dependency in Solanum crop systems necessitate the development of sustainable pest management strategies. Botanical diversion strategies, including trap cropping, companion planting, and intercropping with bioactive plant species such as Tagetes spp., represent a viable alternative grounded in ecological intensification. This study evaluates the mechanisms, efficiency, and systemic implications of integrating botanical diversion strategies for managing insect pests and soil-borne pathogens.

The research synthesizes agronomic, microbiological, and biochemical evidence to establish a multi-layered framework of pest suppression. Botanical diversion operates through behavioral manipulation of pests, alteration of rhizosphere microbial communities, and activation of plant defense pathways. Trap cropping systems have demonstrated significant reductions in pest incidence by diverting herbivorous insects away from the primary crop (Shelton and Badenes-Pérez, 2006; Sarkar et al., 2018). Simultaneously, root exudates and secondary metabolites from plants such as marigold exhibit nematicidal and antifungal properties, suppressing soil-borne pathogens (Siddiqui and Alam, 1988; Saha et al., 2012).

At the soil level, intercropping and mulching practices influence microbial diversity and suppressiveness, enhancing resistance against pathogens such as Fusarium and Rhizoctonia (Bongiorno et al., 2019; Legrand et al., 2019). The integration of organic and plastic mulches further modifies soil temperature, moisture, and microbial activity, contributing to improved plant health and reduced disease incidence (Kader et al., 2017; Steinmetz et al., 2016).

The findings indicate that botanical diversion strategies significantly improve pest control efficiency while enhancing soil health and crop productivity. However, their effectiveness is influenced by environmental conditions, system design, and management practices. The study concludes that integrating botanical diversion strategies within Solanum systems offers a scalable and sustainable approach to pest management, aligning with agroecological principles and reducing reliance on chemical inputs.