Simulation of the Movement of a Locust Swarm in Argentina in 2020

Neotrop Entomol. 2021 Oct;50(5):716-724. doi: 10.1007/s13744-021-00883-1. Epub 2021 May 26.

Abstract

This work presents a simulation for the trajectory of a locust swarm of the species Schistocerca cancellata (Audinet-Serville), between May 22nd and July 29th, 2020, in Argentina. To obtain the directions, temperature, and intensities of the wind, used to determine the daily traveled distance of the insects, the data of weather forecast from Weather Research and Forecasting (WRF) model are used. A statistical analysis shows the effectiveness of the forecast model used in comparison with the real data given by SENASA, which provides latitude and longitude coordinates for the cited period. The results found for the movement of the cloud were satisfactory, they matched with the real data, identifying that temperature and wind speed have a great influence on the movement of locust swarms. The methodology used allows monitoring in real-time their movement, predicting the trajectory and making it possible to plan actions by government control agencies with pesticides in convenient areas.

Keywords: Migratory locust swarm; Schistocerca cancellata; WRF model; temperature; wind field.

MeSH terms

  • Animal Distribution*
  • Animals
  • Argentina
  • Computer Simulation*
  • Grasshoppers*
  • Models, Theoretical
  • Wind