Examinando por Materia "Infestación"

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  • Miniatura
    PublicaciónAcceso abierto
    Odontopus abdominalis (Coleoptera: Curculionidae): a new avocado pest in northeastern Brazil.
    (Universidad del Valle, 2019-12-31) Broglio Micheletti, Lígia; Forti Broglio, Sônia Maria; Silva Dias Pini, Nivia Da; Gómez Torres, Mariuxi; Rodrigues Da Silva, Simone; Cantuarias Avilés, Tatiana Eugenia; Sociedad Colombiana de Entomología - Socolen; Universidad del Valle; Montoya Lerma, James
    This is the first report of Odontopus abdominalis as a novel pest in avocado orchards in the Alagoas State, in Northeastern Brazil. Adults feed and bore holes in the leaves, and larvae feed on the mesophyll tissue, boring galleries in the leaves. Leaf necrosis then reduces the photosynthetic tissue in the mesophyll. This study contributes relevant information for reporting O. abdominalis as a novel avocado pest in Brazil. This knowledge is essential for defining adequate pest management approaches.
  • Miniatura
    PublicaciónAcceso abierto
    Termite (Isoptera) survey in urban area in Northern of Rio de Janeiro State, Brazil.
    (Universidad del Valle, 2019-08-30) Gazal, Vinícius; Bailez, Omar; Viana Bailez, Ana Maria; Sociedad Colombiana de Entomología - Socolen; Universidad del Valle; Montoya Lerma, James
    Most pest termites in urban areas in Brazil are exotic species, but native species are becoming an increasing problem. This study aimed to identify termite species infesting trees and houses in urban areas of Campos dos Goytacazes, in the north of Rio de Janeiro State. Trees in the streets of sixteen neighborhoods were inspected for termites. Inspections and interviews were also conducted to verify the occurrence of termites in houses. Termites were recorded in 17 % of the 1,307 trees surveyed. Coptotermes gestroi was the most frequent species (51% of infested trees), Nasutitermes corniger and Microcerotermes strunckii were present in 38 % and 14 % of infested trees, respectively, and Microcerotermes arboreus was the least common (1 %). Different termite species coexisted in 14 % of the infested trees (n = 31). Termite infestations were recorded in 26% of the surveyed households (n = 1,020). Four species were identified as causing damage: Cryptotermes brevis, C. gestroi, N. corniger, and M. strunckii. The most common species was C. brevis, affecting 133 residences (51 %). C. gestroi and N. corniger were less frequent, but they were responsible for more structural damage than C. brevis, which mainly attacked furniture.