Modelos de dinâmica espaço-temporal do tripes Frankliniella schultzei em cultivos de tomate usando o CLIMEX

Abstract

Frankliniella schultzei (Thysanoptera: Thripidae) is an important insect-pest for agriculture that attacks several economic crops, including tomato crop. Climatic factors such as temperature and precipitation directly influence insect’s population dynamics and choice of tomato cultivation periods in crop field. Thus, this work aimed to determine models of spatiotemporal distribution for thrips F. schultzei. A climate model was developed using the CLIMEX program to understand the F. schultzei space-time distribution. At least 104 records of F. schultzei were collected worldwide using several search platforms for model building, including Global Biodiversity Information Facility (GBIF). Data confirmation was performed using the software EPPO Plant Quarantine. The model validation was performed through thrips populational fluctuation data collected in 11 tomato crop fields located in the municipality of Coimbra-MG. According to the results, the occurrence of trips was higher in the months from January to May and October of December (first year), and in the months of March, October and November (second year). Similar results were observed in the model, indicating an agreement across the density values of F. schultzei and growth index, giving reliability to the model. Thus, the results must be useful for elaboration of management methods according to the site that presents high suitability and period of higher pest density.