Functional response of 3 green lacewing species (Neuroptera: Chrysopidae) to Leucoptera coffeella (Lepidoptera: Lyonetiidae)

Autor(es)

Dami, Bruno Gomes ; Dos Santos, Josy Aparecida ; Barbosa, Enes Pereira ; Rodriguez-Saona, Cesar ; Vacari, Alessandra M.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF INSECT SCIENCE; v. 23, n. 3, p. 8-pg., 2023-05-01.

Resumo

Green lacewings (Neuroptera: Chrysopidae) are predators commonly found in coffee plantations in Brazil that can serve as important biological control agents against insect pests such as the coffee leaf miner, Leucoptera coffeella (Lepidoptera: Lyonetiidae). However, the efficacy of different lacewing species in controlling L. coffeella needs to be evaluated before they are used in augmentative biological control programs. Here, laboratory experiments were conducted to investigate the effects of the L. coffeella developmental stage on the functional response of 3 species of green lacewings: Chrysoperla externa, Ceraeochrysa cincta, and Ceraeochrysa cornuta. The attack rate, handling time, and the number of prey attacked during 24 h with different densities (1, 2, 4, 8, 16, 32, and 64 individuals) of either L. coffeella larvae or pupae were recorded for each of the 3 lacewing species. Based on logistic regression models, all 3 predators showed a Type II functional response when consuming both larvae and pupae of L. coffeella. All 3 species also had similar attack rates (0.0091 larva/h and 0.0095 pupa/h), handling times (3.5 and 3.7 h for larvae and pupae, respectively), and estimated number of prey attacked during the observation period (6.9 larvae and 6.6 pupae) for L. coffeella larvae and pupae. Therefore, our laboratory studies show that the 3 green lacewings Ch. externa, Ce. cincta, and Ce. cornuta have potential for the biological control of L. coffeella, although these results need to be confirmed under field conditions. These findings have implications for the selection of lacewings for augmentative L. coffeella biocontrol. (AU)

• Processo FAPESP: 20/01861-3 - Comportamento de predação de Chrysopidae sobre bicho-mineiro Leucoptera coffeella (Guérin-Mèneville e Perrottet, 1842) (Lepidoptera: Lyonetiidae)
• Beneficiário: Bruno Gomes Dami
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 19/18376-3 - Chrysopidae: diversidade de espécies em cafeeiro e comportamento predando Leucoptera coffeella (Guérin-Mèneville e Perrottet, 1842) (Lepidoptera: Lyonetiidae)
• Beneficiário: Alessandra Marieli Vacari
• Modalidade de apoio: Auxílio à Pesquisa - Regular