ResumenEl cultivo de amaranto (Amaranthus hypocondriacus L.), se ve afectado por el ataque de insectos plaga; entre las cuales Sphenarium purpurascens Charp, es uno de las principales plagas ocasionado pérdidas importantes, además de generar gastos fuertes en su control químico. Por lo anterior, es necesario contar con alternativas económicas de control que sean inocuas al ambiente y la salud humana. El objetivo de esta investigación fue conocer el efecto de Beauveria bassiana (Balsamo) en combinación con extractos acuosos de chicalote (Argemone mexicana L.), chile (Capsicum frutescens L.) e higuerilla (Ricinus comunis L.) para el control de S. purpurascens en amaranto. Al probar en laboratorio el efecto de B. bassiana sobre S. purpurascens de cinco tratamientos y un testigo (agua) inoculados tópicamente e incubados a temperaturas de 26 ± 1 ºC y HR= 70 ± 10%), a los ocho días después de la inoculación hubo el 100% de mortalidad en el 2º y 4º estadio ninfal con 1.0 X 10 8 y 1.0 X 10 9 conidios mL -1, mientras que en adultos la mortalidad fue de 76 y 81%, respectivamente. En campo se determinó el efecto de extractos de chicalote (Argemone mexicana) + higuerilla (Ricinus comunis) + B. bassiana; extractos de higuerilla + chile (Capsicum frutescens) + B. bassiana; B. bassiana (sin extractos) y testigo (agua) sobre el número de chapulines AbstractThe cultivation of amaranth (Amaranthus hypocondriacus L.), is affected by the attack of insect pests; among which Sphenarium purpurascens Charp, is one of the main pests caused considerable losses and generate heavy spending on its chemical control. Therefore, it is necessary to have economic control alternatives that are harmless to the environment and human health. The objective of this research was to determine the effect of Beauveria bassiana (Balsam) in combination with aqueous extracts of chicalote (Argemone mexicana L.), pepper (Capsicum frutescens L.) and higuerilla (Ricinus comunis L.) for controlling S. purpurascens in amaranth. When testing laboratory the effect of B. bassiana on S. purpurascens five treatments and a control (water) topically inoculated and incubated at temperatures of 26 ± 1 °C and RH= 70 ± 10%), eight days after the inoculation was 100% mortality in the 2 nd and 4 th nymphal stage with 1.0 X 10 8 and 1.0 X 10 9 conidia mL -1 , while adult mortality was 76 and 81%, respectively. Field effect extracts chicalote (Argemone mexicana) + (Ricinus comunis) + B. bassiana was determined; extracts of higuerilla + pepper (Capsicum frutescens) + B. bassiana; B. bassiana (no extracts) and control (water) on the number of live grasshoppers grasshoppers per experimental unit,
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