Browsing by Autor "Horacio Grillo Ravelo"

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Bioecology of Cyclocephala cubana Chap. in lab condictions
(2016) María Luisa Sisne Luis; Horacio Grillo Ravelo; Ioan Alberto Rodríguez Santana; Idania Machado; Roberto E. Martínez
The research was carried out in the Laboratory of Entomology of the University of Ciego de Ávila in the period between May 2003 and January 2004. Adults of the Order Coleoptera, family Scarabaeidae species Cyclocephala cubana Chap. were collected during the dispersion flight of the scarabs associated to the pineapple agroecosistem of Ciego de Ávila. Biological particularities and the duration of the states cycle of were determined under semicontrolled conditions according to Grillo, 2003. Under semicontrolled conditions the species Cyclocephala cubana Chap. had a period of pre oviposition of 8-10 days; embryonic of 10-14; stage L1 9-31, and stage L2 of 8-22 days. The fecundity, fertility, appearance, and mortality of this species was 98, 100, 100 and 20 percent respectively.
Efectividad de hongos entomopatógenos en el manejo de Pseudacysta perseae (Heid.) (Hemiptera: Tingidae) en aguacate (Persea americana Mill.) Effectiveness of entomopathogenic fungi in the management of Pseudacysta perseae (Heid.) (Hemiptera: Tingidae) in avocado (Persea americana Mill.)
(2012) Lilián Morales Romero; Horacio Grillo Ravelo; Nilo Maza Estrada; Ricardo Grau; Villa Clara
The avocado lace bug Pseudacysta perseae (Heid.) constitutes the most important pest in avocado plantations in Cuba. The objective of this paper was to evaluate the entomopathogenic fungi effectiveness in the pest management of avocado plantations. Applications of Beauveria bassiana (Bals.) Bull., Metarhizium anisopliae (Metsch.) Sorok., and Lecanicillium (= Verticillium) lecanii (Zimm.) Zare & Gams (4 l/tree and conidia 4x10 11 /tree) in field conditions provided protection 92 days after application (DAA) in more than 70% of biological effectiveness. The biological application effectiveness was shown in ascending way between 16 and 30 DAA. At 30 dda, all treatments showed a biological efficacy exceeding 90%. The adult populations and lace bug nymphs were lower in trees treated with entomopathogenic fungi in relation to the control. The susceptibility of P. perseae populations to entomopathogenic fungi provides guidelines for the possible implementation of an ecological strategy to control the lace bug.
Scarabaeidae family species in the Carica papaya L. in Ciego de Ávila
(2016) María Luisa Sisne Luis; Ioan Alberto Rodríguez Santana; Horacio Grillo Ravelo; Juan Carlos Nápoles Arce; Roberto E. Martínez; Danay Rodríguez Ramos
A white light trap was placed in Carica papaya L. plantations, as Sisne, 2009 and MINAG, 1985 establishes, in the Citric Enterprise of Ciego de Ávila during the period between º May and July of 2010 with the objective of determining the composition of genus and species of the order Coleoptera family Scarabaeidae associated to the agroecosystem. The species. Cyclocephala cubana Chapin, Anomala calceata Chev. y Phyllophaga crenaticollis Blanch are associated to Carica papaya L. crops in these areas.
Status of Ichneumonidae (Hymenoptera: Ichneumonoidea) in Cuba
(Vicerractoría Investigación, 2013) José L. Fernández Triana; Horacio Grillo Ravelo; Mabel López
Current understanding of Cuban ichneumonids (Hymenoptera: Ichneumonoidea) is analysed. A new Subfamily (Tersilochinae) including 13 genera and two species are first reports for Cuba. In contrast with Braconidae, the sister group, the ichneumonids are poorly known because of the lack of local taxonomists and bacause nets, rather than interception, light and yellow pan traps have been used. Using Ophioninae as a reference, and comparing the percentage of ophionines in the fauna of Costa Rican ichneumonids, the ratio of species of Costa Rican to Cuban Ophioninae and the increase in the number of described Cuban ophionines, we suggest that actual Cuban biodiversity in this group may be between 400 and 600 species.