Distribuição espacial e temporal de Opsiphanes invirae Hübner, 1818 (Lepidoptera: nimphalidae) em palma de óleo na Amazônia Oriental.

Abstract

The culture ofoil palm has been highlighted by the increase demand for biofuels in the world and in Brazil the major producer is the state of Pará, responsible for about 90 % of national production. However, this production is affected due to the occurrence ofinsect pests among the main highlights is the O. invirae that have high leaf consumption hindering the development and production of plants. To obtain a better understanding of the population dynamics of this pest and consequently an ejffective mapping to improve control strategies, geostatistics is considered one of the best options. This study aimed to evaluate the spatial distribution ofthe warm O. invirae using geostatistics to characterize the population dynamics around like the plague spreads in oil palm plantations in the municipality ofMoju/PA. In the study area vvere selected worksheets sample, comprising the period from 2008 to 2012 by checking the total warms found per plot and subsequent analysis ofthe spatial distribution of the plague with geostatistics for modeling of semivariograms and the kriging maps confection. Among the main results obtained in this study, it is emprasized that the best spatial distribution ofthe plague is the spherical fift with the formation offoci, as it showed greater coefficient ofdetermination for ali assessments, ranging in scope 1.00-4.40 kilometers in area. Spatial Dependence Index (SDI) is moderate and strong for ali assessments beins within the range from 0.25 to 0.75 and above 0.75, respectively. Geostatistical analysis showed to be a promising tool for the analysis ofthe spatial distribution of warm ofthe O. invirae in palm oil.