Betzabeth Cecilia Pérez Torres

• Meritorious Autonomous University of Puebla

One of the main pests of onion cultivation worldwide is the thrips complex, mainly Thrips tabaci and Frankliniella occidentalis. These species can decrease the production of this crop, so the objective of this research is to evaluate the effect of the plant extracts of Azadirachta indica and Argemone mexicana and the alternating application of Zote...

A new species of oak gall wasp, Andricus coombesi Pujade-Villar & Pérez-Torres n. sp. from Mexico, known only from its asexual generation that induces galls on acorns of Quercus grahamii Benth., (section Lobatae) is described. Its presence causes the complete disappearance of the acorn. Diagnosis, distribution and biological data of the new species...

In the state of Puebla, Mexico, 14 native races of maize have been identified; however, research on their grain and tortilla characterization is limited in this state; therefore, the objective of this study was to evaluate the physical and viscoamylographic characteristics of the grain and the quality of tortilla. Maize samples were collected in ei...

El objetivo fue identificar las cepas, la cantidad y la diversidad de hongos presente en tortillas de 14 razas de maíz. Se determinó el peso del complejo de hongos (PCH) y la identificación de los hongos del mismo, así como características del grano (índice de flotación), nixtamal (humedad de nixtamal y humedad de masa) y tortilla (humedad de torti...

Chrysoperla carnea (Stephens) un depredador polífago que junto con el insecticida neonicotinoide imidacloprid forman parte del programa fitosanitario de control de Melanaphis sacchari en sorgo en Puebla. Se considera que este neuróptero posee un alto nivel de resistencia a varios grupos de insecticidas, por lo que este estudio evaluó la exposición...

This work aimed to evaluate the effect of the plant extract from Citrus sinensis peel and Trichilia havanensis seeds, on mortality and repellency in different biological states of Tetranychus urticae under laboratory conditions. Solutions of the extracts at 500, 1000, and 1500 mg•L-1 were applied to a known number of eggs, larvae, and female adults...

La larva de Parachrysina parapatrica Deloya y Morón, 1988 se describe por primera vez con base a especímenes procedentes del Valle de Tehuacán, localidad de Santa Ana, municipio de Teloxtoc, Puebla, México. Las larvas se recolectaron en raíces de amaranto (Amaranthus hipochondriacus L.) y se criaron hasta obtener pupas y adultos. Se incluyen ilustr...

This work aimed to evaluate the effect of the plant extract from the peel of Citrus sinensis and the seeds of Trichilia havanensis on mortality and repellency in different biological states of Tetranychus urticae under laboratory conditions. Solutions of the extracts at 500, 1000 and 1500 mg.L-1 were applied to a known number of eggs, larvae, and f...

Among the most important pests of amaranth (Amaranthus hypochondriacus L.) is Sphenarium purpurascens Charpentier, 1845 (Orthoptera: Pyrgomorphidae) which causes damage to the plant, decreased performance and economic losses, with chemical products being the main control method. The objective of this work was to evaluate the effect of aqueous extra...

Macrodactylus nigripes (Bates) es una plaga que ataca el cultivo del maíz causando pérdidas económicas en la producción. Con la finalidad de encontrar alternativas agroecológicas para su manejo, el objetivo fue evaluar el efecto de la aplicación de Argemone mexicana L., Ricinus communis L, Beauveria bassiana (Bals) Vuill y Metharrizium anisoplae (M...

Se reporta la fluctuación de picudo del chile, Anthonomus eugenii Cano, en tres municipios de Puebla, México, la cual se observó desde el inicio de la floración en abril hasta post cosecha en diciembre, con la mayor población en agosto. El monitoreo directo e indirecto a través de trampas cebadas con feromona fueron igualmente útiles para detectar...

The ovicidal activity of ethanol and hexane extracts of Azadirachta indica A. Juss., Trichilia havanensis Jacq., Roldana ehrenbergiana (Klatt) H. Rob. & Brettell, Argemone mexicana L., Schinus molle L. y Gliricidia sepium (Jacq.) Kunth ex Walp. was evaluated in the laboratory on Tetranychus urticae Koch (Acari: Tetranychidae). The extracts (treatme...

The ovicidal activity of ethanol and hexane extracts of Azadirachta indica A. Juss., Trichilia havanensis Jacq., Roldana ehrenbergiana (Klatt) H. Rob. & Brettell, Argemone mexicana L., Schinus molle L. y Gliricidia sepium (Jacq.) Kunth ex Walp. was evaluated in the laboratory on Tetranychus urticae Koch (Acari: Tetranychidae). The extracts (treatme...

Sitophilus zeamais is an economically important pest because it feeds on stored corn, since its control is carried out with increasingly toxic insecticides, the objective of the effect of more ecological alternatives such as the application of CaO (quicklime 2 %), Beauveria bassiana (1.109 espores.mL-1), Ricinus communis powder aqueous (1,5 %), mod...

To evaluate the appropriate infestation method for the production of large mealybug, Dactylopius coccus Costa, in Puebla, infestations on maize leaf was compared with commonly used methods: tenate, tulle bag, and gravity. The most dry weight of D. coccus per Opuntia ficus-indica (L) Mill. cladode (2.01 g) was the maize leaf method, followed by tena...

The "rose chafer" Macrodactylus nigripes Bates is one of the pests that affects several crops in Mexico, among them the peach (Prunus persica (L.) Batsch). The objective of this work was to use Dynamic Headspace (HD) and Static Headspace (HE) to extract and identify the volatile compounds of P. persica. Through bioassays with Electroantenography (E...

During the storage of corn (Zea mays L) same pests significantly damage the grain, especially maize weevil (Sitophilus zeamais Motschulsky), and the most common method to fight is via the use of pesticides. So thus in this work, it was evaluated the effect of fungus entomopathogenic Beauveria bassiana (Bals) and its combination with quicklime (calc...

El estado de Puebla, México, ocupa el quinto lugar en riqueza de especies del género Macrodactylus con nueve especies. Por medio de la revisión de colecciones científicas y trabajo de campo, se actualizó el número de especies a diez, con Macrodactylus lineatocollis Bates 1887, como nuevo registro estatal. Se presentan mapas con su distribución terr...

An alternative to management of agricultural pests is use of insecticides obtained naturally; the approach is a feasible alternative sustainable in an agricultural system. Argemone mexicana L. (Papaveraceae) is a plant with toxin that repels or kills insect pests, but few studies focused on damage the insecticide causes natural enemies. The objecti...

Se presentan las descripciones de larvas de tercer estadio de Phyllophaga (Phytalus) totoreana Morón y Phyllophaga (Phyllophaga) opaca Moser con ejemplares colectados asociados a las raíces de Pennisetum sp. (Poaceae) y al cultivo de maíz (Zea mays L.) (Poaceae) establecidos entre los 118–119 m de altitud en el municipio del Fuerte, Sinaloa, México...

MANEJO AGROECOLÓGICO DEL PULGÓN (HEMIPTERA: APHIDIDAE) A BASE DE EXTRACTO ACEITOSO DE CHICALOTE (Argemone mexicana).

Se proponen métodos agroecológicos para el manejo del complejo de "gallina ciega" que dañan los cultivos agrícolas en diferentes zonas agrícolas del estado de Puebla. Durante 20 años se ha estado generando información en las diferentes zonas agrícolas del estado de Puebla, en donde se ha trabajado para conocer las especies asociadas a diferentes cu...

The mature larva and pupa of Conotrachelus dimidiatus Champion, 1904 (Curculionidae: Molytinae) are morphologically re-described, keyed and, for the first time, compared with known larvae and pupae of other Conotrachelus species. The chaetotaxy of the larval and pupal body in the genus Conotrachelus is probably strictly uniform. The immature stages...

Much amaranth (Amaranthus hypochondriacus L.) is produced in the State of Puebla, Mexico. Considering the increase in agricultural production, there has been an increase in area devoted to the crop, favoring conditions and increasing pests including the white grub complex that damages it. The objective of this work was to determine the species of t...

Resumen Se evaluó el efecto de un extracto acetónico de semillas de Trichillia havanensis Jacq. en estado sólido (resina) y de su aceite sobrenadante, a diferentes concentraciones, sobre la viabilidad y desarrollo de larvas neonatas del gusano soldado Spodoptera exigua (Hübner). Ambos estados del extracto mostraron mayor mortalidad larvaria a medid...

El 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 q...

Amaranth (Amaranthus hypochondriacus L.) crop is attacked by insect pests that decreases the production. Thus, the producers use chemical insecticide without considering long-term damages such as the resistance of insect pests, ecological and health damage. The use of vegetable extracts could be an alternative for lowering the economic cost and eco...

Resumen. Atta mexicana (F. Smith) es considerado uno de los insectos plaga de mayor importancia economica, debido a que causa considerables perdidas, producto de la defoliacion parcial o total de los cultivos a los que ataca. Los hongos de los generos Penicillium y Aspergillus pueden representar una alternativa para el control de A. mexicana debido...

Amaranth (Amaranthus hypochondriacus L.) is grown in dryland farming areas of Puebla, Mexico. One of the main factors that contributes to production losses is the white grub complex; vast quantities of insecticides are used to control it, but they do not manage to reduce damages. This study focuses on the effect of the agroecological handling of th...

Amaranth (Amaranthus hypochondriacus L.) is grown in dryland farming areas of Puebla, Mexico. One of the main factors that contributes to production losses is the white grub complex; vast quantities of insecticides are used to control it, but they do not manage to reduce damages. This study focuses on the effect of the agroecological handling of th...

The application of aqueous extracts of Gliricidia sepium (Jacq.), in Chiautla de Tapia, Puebla, Mexico, alternated with neutral soap applications, for control of foliar insect pests associated with the hibiscus crop (Hibiscus sabdariffa L.) was evaluated. This technology reduces insect infestation in plants, and an increase of 39.68 % was observed...

Se presentan métodos para la cría de insectos, esperando que estudiantes, técnicos, investigadores y demás personas interesadas en el conocimiento de los insectos, obtengan información relevante para establecer la cría de varias especies. Bien se sabe que falta mucho por aprender de la biología de los insectos, lo que hace un buen momento para gene...

Mosquitoes are one of the insect groups causing damage and discomfort in living beings, they are also disease vectors. The generalized method to avoid insect-related problems is the application of synthetic chemicals, but poor management and abuse cause resistance to these products and there are increasingly more organisms. Based on the above, the...

Amaranth is a very important crop for the agricultural producers association around the Popocatepetl, Puebla, for its high nutrients content and for the preparation of various enriched food products. But losses from damage caused by insect pests, make not satisfactory yields for farmers. The aim of this study was to taxonomically determinate the am...

Amaranth is a very important crop for the agricultural producers association around the Popocatepetl, Puebla, for its high nutrients content and for the preparation of various enriched food products. But losses from damage caused by insect pests, make not satisfactory yields for farmers. The aim of this study was to taxonomically determinate the am...

En Chiautla de Tapia, Puebla, mediante muestreos realizados cada 15 días de junio a septiembre del 2007, se efectuaron colectas en tres parcelas cultivadas con jamaica (Hibiscus sabdariffa L.), utilizando un aspirador entomológico manual y una red de golpeo. Se revisaron los tallos, nudos, entre nudos, hojas (haz y envés) y flores para hacer un dia...

In Chiautla de Tapia, Puebla, samplings were carried out at two-week intervals in three cultivated lots with jamaica (Hibiscus sabdariffa L.) from June to September in 2007. The collections were made by means of an entomologic aspirator in a manual way and with beating sheets. Stems, knots, inter-knots, leaves (front and back) and flowers were revi...