Integrating Native Wildflower Plots into Desert Agriculture: A Socioecological Approach to Enhancing Biodiversity and Pest Control in Date Plantations

The overreliance on chemical pesticides in intensive agriculture poses significant environmental challenges, including ecosystem degradation, biodiversity loss, and pest resistance. This necessitates sustainable pest management alternatives, especially in vulnerable and understudied hyper-arid regions such as the Arava Valley. In this interdisciplinary research, we explore the potential of using desert wildflower plots in date plantations as a strategy to enhance biodiversity and support biological pest control.

We established 18 wildflower plots (~12 m² each) using seeds from 10 annual and 8 perennial desert plant species across two date plantations (organic and non-organic). The plots are sampled weekly from February to July over two years (2025–2026) using a Vortis Insect Suction Sampler. Additionally, we monitor pest damage by collecting fruits and counting the highly destructive Lesser Date Moth (Batrachedra amydraula) caterpillars, a major pest responsible for up to 75% yield loss in date plantations across the Middle East and North Africa. Plant phenology is tracked to assess germination and floral diversity.

Our findings from 2025 showed 10 species established and bloomed in the plots, dominated by Diplotaxis acris, Rumex cyprius, Pulicaria crispa and Volutaria lippii. The main insect groups sampled were the Hemiptera and Hymenoptera. Importantly, the wildflower plots contained twice as many parasitoid wasps compared to the controls (12m² plots with spontaneously growing vegetation), among which were potential LDM natural enemies, such as Goniozus spp. parasitoid wasps.

In parallel, we explore the social dimensions influencing the adoption of biodiversity-enhancing practices by farmers. Using semi-structured interviews before and after presenting ecological results, we assess farmer and stakeholder perceptions, motivations, and barriers. This analysis utilizes the Behaviour Change Wheel framework to identify drivers and barriers for the adoption of these practices.

The interviews reveal that farmers prioritize clear and high-quality implementation instructions, minimal additional workload or costs, and the importance of collaboration among peers.

By integrating ecological experimentation with social science inquiry, we obtain practical, stakeholder-informed insights into how biodiversity-based strategies can be effectively implemented in arid agricultural systems. The findings aim to contribute to broader efforts to reconcile agricultural production with biodiversity conservation in the face of accelerating environmental change.