Maldonado Pinto, Naomi M.

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    Dinámica poblacional de 𝘉𝘢𝘵𝘰𝘤𝘦𝘳𝘢 𝘳𝘶𝘧𝘰𝘮𝘢𝘤𝘶𝘭𝘢𝘵𝘢 (De Geer, 1775) (Coleoptera: Cerambycidae) en cultivares de mango en Puerto Rico
    (2023-10-20) Maldonado Pinto, Naomi M.; Cabrera Asencio, Irma; College of Agricultural Sciences; Harmsen, Eric W.; Rosario Pérez, Carlos; Department of Crops and Agro-Environmental Sciences; Parés Parés , Carmen P.
    𝘉𝘢𝘵𝘰𝘤𝘦𝘳𝘢 𝘳𝘶𝘧𝘰𝘮𝘢𝘤𝘶𝘭𝘢𝘵𝘢 (De Geer, 1775) (Coleoptera: Cerambycidae), is an introduced cerambycid beetle whose behavior has not been previously studied in Puerto Rico. Therefore, the objectives of this research were to evaluate: (1) the incidence, severity, and relative preference of 𝘉. 𝘳𝘶𝘧𝘰𝘮𝘢𝘤𝘶𝘭𝘢𝘵𝘢 in different cultivars of Mangifera indica and the possible effect of some abiotic factors, (2) chemical and cultural management for the detection and reduction of this pest, and (3) the growth of 𝘉. 𝘳𝘶𝘧𝘰𝘮𝘢𝘤𝘶𝘭𝘢𝘵𝘢 larvae through rearing on an artificial diet. The commercial cultivars, Palmer and Keitt, showed the highest incidence of 𝘉. 𝘳𝘶𝘧𝘰𝘮𝘢𝘤𝘶𝘭𝘢𝘵𝘢 damage. At farm level, Palmer was the cultivar with the highest infestation with more than 50% of infested trees, while the Edward cultivar was not infested by this borer. 𝘉. 𝘳𝘶𝘧𝘰𝘮𝘢𝘤𝘶𝘭𝘢𝘵𝘢 had a preference for cultivars with lower wood density, such as Palmer and Kent, over those with denser wood, such as the Edward cultivar. On the other hand, severity did not prove to be a good tool to measure the damage of this pest. It was not possible to collect 𝘉. 𝘳𝘶𝘧𝘰𝘮𝘢𝘤𝘶𝘭𝘢𝘵𝘢 in the Cross-Vane traps with the lures evaluated. However, low doses of the attractants (Z)-3-hexen-1-ol and nonanal were successful in attracting insects of the order Coleoptera, especially families with xylophages such as Curculionidae, Bostrichidae and Cerambycidae. The repellents beta-pinene and verbenone, and the insecticide Thiamethoxam together were effective in preventing the entry of 𝘉. 𝘳𝘶𝘧𝘰𝘮𝘢𝘤𝘶𝘭𝘢𝘵𝘢 Rearing in artificial nutrient medium produced the longest lifespan of 𝘉. 𝘳𝘶𝘧𝘰𝘮𝘢𝘤𝘶𝘭𝘢𝘵𝘢 larvae, suggesting that this borer has only one generation per year in Puerto Rico.