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Respuesta kairomonal de coleópteros asociados a Dendroctonus frontalis y dos especies de Ips (Coleoptera: Curculionidae) en bosques de Chiapas, México

2008; National Autonomous University of Mexico; Volume: 79; Issue: 001 Linguagem: Inglês

10.22201/ib.20078706e.2008.001.526

2007-8706

Bernardo Domínguez Sánchez, Jorge E. Macías Sámano, Neptalí Ramírez Marcial, Jorge Leonel León Cortés,

Insect-Plant Interactions and Control

WE ASSESSED THE BARK BEETLE DIVERSITY AND THE RESPONSE OF ASSOCIATED PREDATORS TO AGGREGATION PHEROMONES IN PINE FORESTS IN CHIAPAS, MEXICO. FROM JUNE TO OCTOBER 2006, 40 LINDGREN FUNNEL TRAPS WERE ESTABLISHED WITH DIFFERENT BAITS THAT INCLUDED FRONTALIN, IPSENOL AND IPSDIENOL PHEROMONES AND A CONTROL (WITHOUT PHEROMONE). WE REGISTERED THE ATTRACTIVENESS OF FRONTALIN TO THE BARK BEETLE DENDROCTONUS FRONTALIS (ZIMMERMANN), AND IPSENOL AND IPSDIENOL TO IPS SPP. KAIROMONAL SPECIFIC RESPONSE OF THE PREDATORS TEMNOCHILA CHLORODIA (MANNERHEIM), ENOCLERUS ABLUSUS (BARR) AND ELACATIS SP. WAS DETECTED. WE REGISTERED AN IMPORTANT INCREASE IN ABUNDANCE OF BARK BEETLES AND PREDATORS DURING THE SUMMER TO THE BEGINNING OF FALL. T. CHLORODIA EXHIBITED DIFFERENTIAL ATTRACTION TO THE THREE PHEROMONES EVALUATED, WHEREAS E. ABLUSUS, ELACATIS SP. AND LEPTOSTYLUS SP. WERE SIGNIFICANTLY ATTRACTED TO IPSENOL AND IPSDIENOL. THIS IS THE FIRST REPORT OF KAIROMONAL RESPONSE OF THE PHYTOPHAGOUS LEPTOSTYLUS SP. (CERAMBYCIDAE) FOR MEXICO. OUR RESULTS SHOWED THAT INTERAND INTRA-SPECIFIC COMMUNICATION BETWEEN DIFFERENT BARK BEETLES AND ASSOCIATED SPECIES MAY OCCUR, WHICH PROMOTES COMPETITIVE AND PREDATOR INTERACTION BETWEEN THEM