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Revista mexicana de ciencias agrícolas

versão impressa ISSN 2007-0934

Resumo

VANOYE-ELIGIO, Venancio et al. Population fluctuation of Anastrepha ludens in the region of Santa Engracia, Tamaulipas, Mexico. Rev. Mex. Cienc. Agríc [online]. 2015, vol.6, n.5, pp.1077-1091. ISSN 2007-0934.

The Mexican fruit fly Anastrepha ludens (Loew) is a pest of great impact on citrus in Tamaulipas. Attacks host of commercial importance such as oranges, grapefruit and tangerines, restricting their business mobility to national or international markets. In this study from population fluctuation during the years 2008-2011 of A. ludens in Santa Engracia area, three periods based on presence ofthe insect and its relationship with average temperatures were determined: January-April, May-August and September to December. Descriptive statistics highlighted the variability between observations, suggesting heterogeneity in insect densities. The MTD (fly / trap x day) average weekly was associated with different climatic variables through a linear and multiple regression analysis observing weak correlations in general due to the variation of MTD average. The minimum temperature variable was the most consistent and with higher fitting. The minimum and maximum temperature in multiple regressions represented the explanatory variables for each year, while precipitation did not show a clear association with MTD average, perhaps for irrigation activities within commercial areas or an outdated influence. A close association between phenology of commercial fruits and population fluctuation was observed. The results of this study have practical implications for decision making in integrated pest management with an approach to large areas.

Palavras-chave : citrus; Mexican fruit fly; regression analysis; temperature.

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