Resumo

ASCENCIO-ALVAREZ, Ada et al. Gall (Trioza rusellae Tuthill) insect identification in Brosimum alicastrum Swartz leaves in Yucatán, Mexico. Rev. Chapingo ser. cienc. for. ambient [online]. 2015, vol.21, n.1, pp.123-132. ISSN 2007-4018.  https://doi.org/10.5154/r.rchscfa.2014.08.032.

The insect Trioza rusellae Tuthill (Hemiptera-Triozidae) produces galls on the leaves of the Ramon (Brosimum alicastrum Swartz) tree, species with high nutritional value of the Peninsula of Yucatan. The insect was isolated and identified from collections in the municipalities of Muna and Sacalum, Yucatán. Five to 10 years old trees were sampled selecting branches with leaves showing galls. The samples were placed in plastic bags and taken to the laboratory, and placed in entomological cages. Adult insects were collected using a manual vacuum, while galls were dissected to collect the nymphs directly with a brush (0001). The samples were preserved in alcohol (70 %) and in fixative formalin-alcohol-water (FAW). Nymphs and adult insects from the alcohol samples were mounted and observed on a stereoscopic microscope. The samples in FAW were processed and observed under a scanning electron microscope (SEM). As a result, photographs were obtained and development phases of T. rusellae were identified by entomological keys.

Palavras-chave : Ramon tree; galls; pest; characterization; scanning electron microscope.

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