Validation of the sampling methodology for Opsiphanes invirae caterpillars on oil palm plantations in the Brazilian Amazon

Validação da metodologia de amostragem para lagartas de Opsiphanes invirae em plantios de palma de óleo na Amazônia brasileira

ABSTRACT:

This study validated the use of leaf 17 on the sampling of Opsiphanes invirae Hübner (Lepidoptera: Nymphalidae) through the quantification of caterpillar abundance on the different spirals leaves, in comparison to leaf 17, and, on the apical, intermediate and basal leaf regions. This study was performed in the state of Pará, between March-2014 and March-2015. Results confirmed that leaf 17 is the most adequate method for monitoring this defoliator pest.

Key words:
Defoliator insects; Elaeis guineensis Jacquin (Arecaceae); monitoring; oil palm