Pest persistence and eradication conditions in a deterministic model for sterile insect release


Abstract:

The release of sterile insects is an environment friendly pest control method used in integrated pest management programmes. Difference or differential equations based on Knipling's model often provide satisfactory qualitative descriptions of pest populations subject to sterile release at relatively high densities with large mating encounter rates, but fail otherwise. In this paper, I derive and explore numerically deterministic population models that include sterile release together with scarce mating encounters in the particular case of species with long lifespan and multiple matings. The differential equations account separately the effects of mating failure due to sterile male release and the frequency of mating encounters. When insects spatial spread is incorporated through diffusion terms, computations reveal the possibility of steady pest persistence in finite size patches. In the presence of density dependence regulation, it is observed that sterile release might contribute to induce sudden suppression of the pest population.

Año de publicación:

2015

Keywords:

  • Pest control
  • spatial invasions
  • Integrated pest management

Fuente:

scopusscopus

Tipo de documento:

Article

Estado:

Acceso abierto

Áreas de conocimiento:

  • Ecología
  • Modelo matemático
  • Ciencias Agrícolas

Áreas temáticas:

  • Microorganismos, hongos y algas
  • Fisiología y materias afines
  • Ganadería

Contribuidores: