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Acta zoológica mexicana

versão On-line ISSN 2448-8445versão impressa ISSN 0065-1737


AGUILAR CARPIO, Cid et al. Chemical control of Thrips tabaci (Thysanoptera: Thripidae) in onion crop of Morelos, Mexico. Acta Zool. Mex [online]. 2017, vol.33, n.1, pp.39-44. ISSN 2448-8445.

The onion crop has high populations of thrips (Thrips tabaci Lindeman), which causes premature wilting, retard leaf development and distorts vegetative buds. Farmers have been used different pesticides for managing trips, regardless of the rotation of chemical groups and inadequate doses, causing environmental pollution and overuse of agrochemicals. The objective of this study was to evaluate six groups of pesticides for the management of thrips, which were rotated during the growing season and the thrips species present in an onion crop also was identified. The study began in October 2013 in an onion crop, located in Ayala, Morelos. Each treatment consisted of the application of the following insecticides: T1: Control (no products); T2: Movento, Velcefate, Muralla, Tracer; T3: Regent, Muralla, Movento, Seizer+ Agromectin; T4 Tracer, Movento, Curacron, Muralla; T5 Actigard, Tracer, Colt, Agromectin; T6 Evisect-s, Curacron, Tracer, Calypso. To determine control of insecticides, the number of nymphs and adult thrips were counted. Analysis of variance and mean separation test with Tukey (α 0.05) was performed with data on the number of nymphs and adult thrips. To determine the species of thrips present, a sample was taken from the leaves of onion plants. Insecticides that achieve control of nymphs of thrips in onion crop were the Tracer, Acephate, Curacron and combining Seizer + Agromectin. The Tracer and Muralla insecticides were those who maintained the lowest adult thrips in onion growing populations. The predominant species of thrips in onion crop during the study was Thrips tabaci L.

Palavras-chave : Thrips; chemistry control; onion.

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