CONTRIBUTION FOR THE DIAGNOSIS AND CONTROL OF THE BARK BEETLES OF GENUS IPS (COLEOPTERA: SCOLYTIDAE) IN THE PINE FOREST OF CUBA

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René Alberto López Castilla ; Fidel Góngora Rojas ; Celia Guerra Rivero ; Enrique de Zayas Izaguirre ; Antonio Fernández Vera ; Natividad Triguero Isasi (2009)
  • Publisher: Universidad Autónoma Indígena de México
  • Journal: Ra Ximhai (issn: 1665-0441)
  • Subject: Pinus caribaea | P. tropicalis | Ips calligraphus | I. grandicollis | treatment thresholds. | Social Sciences | H | Social sciences (General) | H1-99

There are four pines species endemic from Cuba with width importance, from the Conservation of the Forest Genetic Resources at regional level to the mitigation of the climatic change. Their economical importance is due to forming pure forest stand of fast growth and of straight trunk. The bark beetle of the genus Ips De Geer (Coleoptera: Scolytidae) and the associate mushrooms from the complex Ophiostomatoid (Ceratocystidaceae: Microascales Phylum Ascomycotina) are those that cause the biggest damages in the plantations of pines in Cuba. The damage management was based mainly on the logging of all the infested trees and the application of organosintetic insecticides with the consequent affectations to the environment apart from economic losses. In this work were determined the most noxious Ips species and the most vulnerable pine species by means of the development of experiments with randomized design on logging of pines and systematic samplings in pine trees in the western region. It was also defined a threshold of damage index and the most effective treatment with biological products in the central region. These results were integrated and introduced like a methodology of bark beetle management in a plantations area of Pinus caribaea Morelet. var caribaea (Punta Felipe, Villa Clara, Cuba) after the development of an outbreak of this noxious complex and it was demonstrated that it was possible to control this forest pest without carrying out the logging of all the affected trees neither the application of organosintetic insecticides. As what this work has a positive environmental impact, contributing to the healthy conservation of the pine forests and an economic impact due to the saving of foreign currencies for concept of insecticides left of applying and also to diminish the losses of wooden increase.
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