Field Response of Dendroctonus frontalis (Coleoptera: Scolytinae) to Synthetic Semiochemicals in Chiapas, Mexico.
Dendroctonus frontalis Zimmermann (Coleoptera: Scolytinae) is the most serious pestof pines (Pinus spp.) in Mexico. ConspeciÞcs are attracted to trees undergoing colonization by the aggregation pheromone frontalin, which is synergized by odors of pine oleoresin released from beetle-damaged host tissue. Synthetic racemic frontalin combined with turpentine has been the operational bait used in traps for monitoring populations ofD. frontalis in Mexico as well as the United States. Recently, racemic endo-brevicomin has been reported to be a synergist of the frontalin/turpentine bait and as an important component of the aggregation pheromone for D. frontalis populations in the United States.
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