Assessing of Economic Costs on Global Invasive Insects Based on InvaCost Database.

To clarify the damage losses of invasive insects, the economic cost of global invasive insects were assessed in monetized form. InvaCost database was used to analyze all insecta data, and the conservative economic costs, expenditure costs, management and loss costs, and major invasive insect species from 1970 to 2017 were counted separately, based on which generalized least squares regression, robust regression, and quantile regression 3 models to predict the possible costs from 2010 to 2019. The results showed that the economic cost due to insect invasion from 1970 to 2017 was 500 438 million dollar, with an annual average of 10 426 million dollar. The United States had the highest spending cost in the world, and China ranked second about 50 352 million dollar (340 113 million yuan), and the economic cost of Aedes spp. was the highest among all invasive insect species. The model predicted a possible economic cost of 292.362~709.725 billion dollar in the 21st century 10s, with a maximum confidence value of 367.224 billion dollar. The assessment showed that the global economic costs of invasive insects over the past few decades had been enormous, but proactive management was clearly lacking. [ABSTRACT FROM AUTHOR]