Please use this identifier to cite or link to this item: http://repositorio.ufes.br/handle/10/771
Title: Leaf consumption and duration of instars of the cassava defoliator Erinnyis ello (L., 1758) (Lepidoptera, Sphingidae)
Authors: Pratissoli, Dirceu
Zanúncio, José Cola
Barros, Reginaldo
Oliveira, Harley Nonato de
Issue Date: 2002
Citation: PRATISSOLI, Dirceu et al. Leaf consumption and duration of instars of the cassava defoliator Erinnyis ello (L., 1758) (Lepidoptera, Sphingidae). Rev. Bras. entomol., São Paulo, v. 46, n. 3, p. 251-254, 2002. Disponível em: <http://www.scielo.br/pdf/rbent/v46n3/a04v46n3.pdf>. Acesso em: 3 dez. 2011.
Abstract: The objectives of this research were to evaluate leaf consumption and the developmental time of the larvae of Erynnyis ello (L., 1758) (Lepidoptera, Sphingidae) reared on cassava, in order to obtain information for the integrated management of this pest. The larvae were reared on excised cassava leaves in Petri dishes and later in gerbox, and kept in chambers at 24 ± 2 ºC and 75 ± 10% RH. The total leaf area consumed by the larva to complete its development was 589.67 cm2; each of the five instars consumed, respectively: 1.89 cm2; 5.74 cm2; 17.48 cm2; 76.66 cm2; and 487.90 cm2. The consumption by the first three instars was insignificant, and did not reach 5% altogether; the 4th represented 13%; the 5th presented a consumption significantly higher, about 82.7%. The total time for the larval development was 22.61 days, and the duration for each of the five larval instar was, respectively: 4.35; 3.19; 3.32; 4.52; and 4.94 days. The pre-pupal period lasted 2.29 days. Since the highest consumption is by the 5th instar larva, the control should be applied before this age to avoid heavier damages to the cassava crop.
URI: http://repositorio.ufes.br/handle/10/771
ISSN: 0085-5626
Appears in Collections:DCAB - Artigos publicados em periódicos

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