Sustainable vector/pest control using the permanent Sterile Insect Technique
R. Anguelov, Y. Dumont, V. Yatat

TL;DR
This paper develops minimalistic mathematical models to analyze the effectiveness of sterile insect technique (SIT) for sustainable vector control, identifying thresholds for successful elimination and proposing strategies for long-term population management.
Contribution
The paper introduces simplified models for vector population dynamics and SIT interactions, revealing thresholds and bistability that inform sustainable control strategies.
Findings
Elimination occurs when the basic offspring number is ≤ 1.
A threshold number of sterile males can effectively control wild populations.
Bistability allows for strategies to maintain low pest levels over time.
Abstract
Vector/Pest control is essential to reduce the risk of vector-borne diseases or losses in crop fields. Among biological control tools, the sterile insect technique (SIT), is the most promising one. SIT control generally consists of massive releases of sterile insects in the targeted area in order to reach elimination or to lower the pest population under a certain threshold. The models presented here are minimalistic with respect to the number of parameters and variables. The first model deals with the dynamics of the vector population while the second model, the SIT model, tackles the interaction between treated males and wild female vectors. For the vector population model, the elimination equilibrium is globally asymptotically stable when the basic offspring number, , is lower or equal to one, whereas becomes unstable and one stable positive…
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