Rafael Bujanos - Academia.edu (original) (raw)

Papers by Rafael Bujanos

Research paper thumbnail of Etiology and effect in genotypes of browning and abnormal sprout associated to phytoplasmas in potato tubers

Revista Mexicana De Ciencias Agricolas, Dec 1, 2010

Research paper thumbnail of Behavior of Tamarixia triozae Females (Hymenoptera: Eulophidae) Attacking Bactericera cockerelli (Hemiptera: Triozidae) and Effects of Three Pesticides on This Parasitoid

Environmental Entomology, 2015

The parasitism and host feeding behavior of Tamarixia triozae (Burks) (Hymenoptera: Eulophidae) f... more The parasitism and host feeding behavior of Tamarixia triozae (Burks) (Hymenoptera: Eulophidae) females on Bactericera cockerelli (Sulc) (Hemiptera: Triozidae) fourth instars that have infested tomato (Lycopersicon esculentum Miller) leaflets are described and quantified. Females took approximately 31.14 6 4.39 min to search for their first suitable host. The recognition and handling times for oviposition were 2.66 6 0.18 and 4.26 6 0.39 min, respectively. T. triozae parasitized 4.66 6 0.61 nymphs in a period of 6 h. The parasitoid explored and probed its host by walking along the margins of its body while antennating and repeatedly introducing the ovipositor beneath the nymph. The handling times before and during host feeding were 8.42 6 0.67 and 8.29 6 0.60 min, respectively. T. triozae females consumed 1.00 6 0.00 B. cockerelli nymph after parasitizing 3.3 6 0.48 nymphs. EPA-a refined soybean oil-imidacloprid, and abamectin caused between $70 and 100% T. triozae adult mortality after a 48-h contact treatment with fresh pesticide residue and a 47-91% decrease (abamectin > imidacloprid > EPA) in adult emergence when parasitized B. cockerelli fourth instars were directly sprayed. These data suggest that the use of these insecticides in combination with T. triozae in integrated pest management programs should be carefully evaluated.

Research paper thumbnail of Oleorresina de Jícama para controlar Acanthoscelides obtectus Say (Coleóptera: Bruchidae) en semilla de frijol

Agronomía Mesoamericana, 2008

resultados de tesis del primer autor. maestría en ciencias en semillas. iT roque. 2 instituto Tec... more resultados de tesis del primer autor. maestría en ciencias en semillas. iT roque. 2 instituto Tecnológico de roque. km 8 carr. celaya-J. rosas. apdo. Postal 508. cP 38000. celaya, guanajuato, méxico. arangel_l@yahoo. com 3 instituto Tecnológico de celaya. av. Tecnológico y a. garcía cubas s/n. cP 38110 celaya, guanajuato, méxico. 4 instituto nacional de investigaciones Forestales, agrícolas y Pecuarias (iniFaP). cir-cenTro-campo experimental Bajío (ceBaJ). km 6.5 celaya-san miguel de allende. cP 38110 celaya, guanajuato, méxico.

Research paper thumbnail of Responses of potato cultivars to the psyllid (Bactericera cockerelli) under greenhouse conditions

Agricultura técnica en …, 2008

Research paper thumbnail of Psiloideos y cicadélidos en el cultivo de la papa en el Bajío, Guanajuato, México

Agricultura técnica en …, 2009

El objetivo de este estudio fue identificar los psiloideos y chicharritas presentes en una locali... more El objetivo de este estudio fue identificar los psiloideos y chicharritas presentes en una localidad de la región productora de papa del estado de Guanajuato, México. La investigación se realizó durante dos ciclos agrícolas del cultivo en 2003, se utilizaron charolas amarillas (trampas) con agua. Los géneros y especies de psílidos colectados fueron: Bactericera cockerelli (Sulcer.), Paracarsidara gigantea (Crawford), Paratrioza maculipenis (Crawford), Heteropsilla texana (Crawford), y Rhinopsylla prob antennata (Crawford). Los géneros y especies de chicharritas colectadas fueron: Carneocephala sp., Empoasca kraemeri Ross & Moore, E. mexara Ross & Moore y E. solana DeLong, Elymana sp., Oncopsis sp., Phera centrolineata (Signoret), Scaphytopius sp., Agallia barretti Ball, Paraphlepsius sp., Agalliopsis sp., Aceratagallia sp. y Draeculacephala minerva Ball.

Research paper thumbnail of RESPONSES OF POTATO CULTIVARS TO THE PSYLLID (Bactericera cockerelli) UNDER GREENHOUSE CONDITIONS* RESPUESTA DE VARIEDADES DE PAPA AL PSÍLIDO (Bactericera cockerelli) BAJO CONDICIONES DE INVERNADERO

Research paper thumbnail of Etiology and effect in genotypes of browning and abnormal sprout associated to phytoplasmas in potato tubers

Revista Mexicana De Ciencias Agricolas, Dec 1, 2010

Research paper thumbnail of Behavior of Tamarixia triozae Females (Hymenoptera: Eulophidae) Attacking Bactericera cockerelli (Hemiptera: Triozidae) and Effects of Three Pesticides on This Parasitoid

Environmental Entomology, 2015

The parasitism and host feeding behavior of Tamarixia triozae (Burks) (Hymenoptera: Eulophidae) f... more The parasitism and host feeding behavior of Tamarixia triozae (Burks) (Hymenoptera: Eulophidae) females on Bactericera cockerelli (Sulc) (Hemiptera: Triozidae) fourth instars that have infested tomato (Lycopersicon esculentum Miller) leaflets are described and quantified. Females took approximately 31.14 6 4.39 min to search for their first suitable host. The recognition and handling times for oviposition were 2.66 6 0.18 and 4.26 6 0.39 min, respectively. T. triozae parasitized 4.66 6 0.61 nymphs in a period of 6 h. The parasitoid explored and probed its host by walking along the margins of its body while antennating and repeatedly introducing the ovipositor beneath the nymph. The handling times before and during host feeding were 8.42 6 0.67 and 8.29 6 0.60 min, respectively. T. triozae females consumed 1.00 6 0.00 B. cockerelli nymph after parasitizing 3.3 6 0.48 nymphs. EPA-a refined soybean oil-imidacloprid, and abamectin caused between $70 and 100% T. triozae adult mortality after a 48-h contact treatment with fresh pesticide residue and a 47-91% decrease (abamectin > imidacloprid > EPA) in adult emergence when parasitized B. cockerelli fourth instars were directly sprayed. These data suggest that the use of these insecticides in combination with T. triozae in integrated pest management programs should be carefully evaluated.

Research paper thumbnail of Oleorresina de Jícama para controlar Acanthoscelides obtectus Say (Coleóptera: Bruchidae) en semilla de frijol

Agronomía Mesoamericana, 2008

resultados de tesis del primer autor. maestría en ciencias en semillas. iT roque. 2 instituto Tec... more resultados de tesis del primer autor. maestría en ciencias en semillas. iT roque. 2 instituto Tecnológico de roque. km 8 carr. celaya-J. rosas. apdo. Postal 508. cP 38000. celaya, guanajuato, méxico. arangel_l@yahoo. com 3 instituto Tecnológico de celaya. av. Tecnológico y a. garcía cubas s/n. cP 38110 celaya, guanajuato, méxico. 4 instituto nacional de investigaciones Forestales, agrícolas y Pecuarias (iniFaP). cir-cenTro-campo experimental Bajío (ceBaJ). km 6.5 celaya-san miguel de allende. cP 38110 celaya, guanajuato, méxico.

Research paper thumbnail of Responses of potato cultivars to the psyllid (Bactericera cockerelli) under greenhouse conditions

Agricultura técnica en …, 2008

Research paper thumbnail of Psiloideos y cicadélidos en el cultivo de la papa en el Bajío, Guanajuato, México

Agricultura técnica en …, 2009

El objetivo de este estudio fue identificar los psiloideos y chicharritas presentes en una locali... more El objetivo de este estudio fue identificar los psiloideos y chicharritas presentes en una localidad de la región productora de papa del estado de Guanajuato, México. La investigación se realizó durante dos ciclos agrícolas del cultivo en 2003, se utilizaron charolas amarillas (trampas) con agua. Los géneros y especies de psílidos colectados fueron: Bactericera cockerelli (Sulcer.), Paracarsidara gigantea (Crawford), Paratrioza maculipenis (Crawford), Heteropsilla texana (Crawford), y Rhinopsylla prob antennata (Crawford). Los géneros y especies de chicharritas colectadas fueron: Carneocephala sp., Empoasca kraemeri Ross & Moore, E. mexara Ross & Moore y E. solana DeLong, Elymana sp., Oncopsis sp., Phera centrolineata (Signoret), Scaphytopius sp., Agallia barretti Ball, Paraphlepsius sp., Agalliopsis sp., Aceratagallia sp. y Draeculacephala minerva Ball.

Research paper thumbnail of RESPONSES OF POTATO CULTIVARS TO THE PSYLLID (Bactericera cockerelli) UNDER GREENHOUSE CONDITIONS* RESPUESTA DE VARIEDADES DE PAPA AL PSÍLIDO (Bactericera cockerelli) BAJO CONDICIONES DE INVERNADERO