Homalinotus coriaceus: Difference between revisions

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Revision as of 11:46, 8 September 2023

Homalinotus coriaceus
Scientific classification
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H. coriaceus
Binomial name
Homalinotus coriaceus
Gyllenhal, 1836

Homalinotus coriaceus, also known as the 'black coconut bunch weevil', is a species of weevil belonging to the family Curculionidae. This species can be found in Brazil.[1] This beetle is a pest species that affects coconut cultivation, due to its lifecycle and feeding habits.[2]

Morphology

The black coconut bunch weevil is a black-colored beetle, measuring 25 to 30 mm in length.[3] In addition to a rostrum about 8 mm long, the females differ little from the males, being slightly larger and having two faint depressions on the pronotum. The eggs are white, smooth, and oblong, with laying occurring on the floral peduncle.[4] The fully developed larvae measure from 40 mm to 50 mm in length, are curved, white in color, and have a rust-colored head.[5]

Ecology

This pest is one of the main weevils affecting coconut cultivation in Brazil, causing a reduction of around 50% in coconut production.[6] The damage is inflicted by the larvae, which bore tunnels into the floral peduncle, disrupting the sap flow and leading to the drop of flowers and fruits.[7] Adult beetles are also harmful to coconut trees because, when feeding, they tear apart the tissues of new flowers and fruits, causing them to dry out.[8]

References

  1. ^ "Homalinotus coriaceus L.Gyllenhal, 1836". www.gbif.org. Retrieved 2023-09-08.
  2. ^ Sarro, Fernanda B.; Crocomo, Wilson B.; Ferreira, Joana M. S. "Aspectos da biologia e morfologia da broca do pedúnculo floral do coqueiro, Homalinotus coriaceus (Gyllenhal) (Coleoptera: Curculionidae)". Neotropical Entomology (in Portuguese). 33: 7–12. doi:10.1590/S1519-566X2004000100003. ISSN 1519-566X.
  3. ^ MICHEREFF, MIRIAN FERNANDES FURTADO; VILELA, EVALDO FERREIRA; MICHEREFF FILHO, MIGUEL; MAFRA-NETO, AGENOR. "Uso do feromônio sexual sintético para captura de machos da traça-das-crucíferas". Pesquisa Agropecuária Brasileira (in Portuguese). 35 (10): 1919–1926. doi:10.1590/s0100-204x2000001000002. ISSN 0100-204X.
  4. ^ Giustolin, Teresinha Augusta; Vendramim, José Djair; Postali Parra, José Roberto. "Número de ínstares larvais de Tuta absoluta (Meyrick) em genótipos de tomateiro". Scientia Agricola (in Portuguese). 59 (2): 393–396. doi:10.1590/s0103-90162002000200028. ISSN 0103-9016.
  5. ^ Mendonça, Gerbson Azevedo de. Polinização entomófila do coqueiro (>i<Cocos nucifera>/i< L.) (Thesis). Universidade de Sao Paulo, Agencia USP de Gestao da Informacao Academica (AGUIA).
  6. ^ Oliveira, Ivan Tadeu Gomes de (2021-07-08). "Guia de relações multiespécies na Baía de Florianópolis - SC". Cadernos de Campo (São Paulo - 1991) (in Portuguese). 30 (1): e179745. doi:10.11606/issn.2316-9133.v30i1pe179745. ISSN 2316-9133.
  7. ^ Lima, Maria do Livramento Ferreira; Ferreira, Ubirany Lopes (2021-08-09), "ESTUDO COMPORTAMENTAL DE LINHAGENS DE METARHIZIUM EM DIFERENTES MEIOS DE CULTURA", Manejo sustentável de pragas e doenças agrícolas, Atena Editora, pp. 9–17, retrieved 2023-09-08
  8. ^ Ferreira Neto, Miguel. Doses de N e K aplicadas via fertirrigação na cultura do coqueiro (Cocos nucifera L. ) anão (Thesis). Universidade de Sao Paulo, Agencia USP de Gestao da Informacao Academica (AGUIA).