Bioecological aspects of the common black field cricket, Gryllus assimilis (Orthoptera: Gryllidae) in the laboratory and in Eucalyptus (Myrtaceae) plantations

Journal of Orthoptera Research. 2020;29(1):83-89 DOI 10.3897/jor.29.48966


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Journal Title: Journal of Orthoptera Research

ISSN: 1082-6467 (Print); 1937-2426 (Online)

Publisher: Pensoft Publishers

Society/Institution: Orthopterists’ Society

LCC Subject Category: Science: Zoology

Country of publisher: Bulgaria

Language of fulltext: English

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Marcus Vinicius Masson (Bracell Ltd.)

Wagner de Souza Tavares (sia Pacific Resources International Holdings Ltd.)

Jacyr Mesquita Alves (Bracell Ltd.)

Pedro José Ferreira-Filho (Universidade Federal de São Carlos)

Leonardo Rodrigues Barbosa (Embrapa Florestas)

Carlos Frederico Wilcken (Universidade Estadual Paulista “Júlio de Mesquita Filho”)

José Cola Zanuncio (Universidade Federal de Viçosa)


Blind peer review

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Time From Submission to Publication: 12 weeks


Abstract | Full Text | Full Text | Full Text

The common black field cricket, Gryllus assimilis (Orthoptera: Gryllidae), damages young plants of red cedar, Juniperus virginiana (Cupressaceae); strawberry, Fragaria × ananassa (Rosaceae); sugarcane, Saccharum officinarum (Poaceae); teak, Tectona grandis (Lamiaceae); upland cotton, Gossypium hirsutum (Malvaceae); and, mainly, Eucalyptus spp. (Myrtaceae). The objective of this study was to investigate the biological and behavioral parameters of this insect in the laboratory and in Eucalyptus spp. plantations in Inhambupe, Bahia State, Brazil. The incubation period and the viability of G. assimilis eggs were 11.87 days and approximately 22%, respectively. The duration of the nymphal stage was 62.34 days with approximately 60% of the nymphs obtained in the laboratory being females. The average number of egg batches per female, eggs per female, and eggs per batch per female of this insect were 25.50, 862.17, and 34.65, respectively. G. assimilis females lived for 76.50 days in the adult stage, and 138.34 days in total, from egg through nymph to adult. Males produced three characteristic sounds: one for the marking of territory, one for courtship, and one when alone. G. assimilis fed primarily on weeds but, in their absence, it damaged young Eucalyptus spp. plants. This paper presents important data on the biology and behavior of G. assimilis; this information may encourage additional biological research, laboratory rearing, and integrated management of this pest.