Data/hora: 11/06/2024 18:11:10

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 18/01/2012
Data da última atualização: | 19/05/2017
Autoria: | TAVARES, W. de S.; CRUZ, I.; SERRÃO, J. E.; ZANUNCIO, J. C.
Afiliação: | WAGNER DE SOUZA TAVARES, UFV; IVAN CRUZ, CNPMS; JOSÉ EDUARDO SERRÃO, UFV; JOSÉ COLA ZANUNCIO, UFV.
Título: | Harmful Chrysomelidae and beneficial Coccinellidae on organically grown Crotalaria juncea (L.) (Fabaceae).
Ano de publicação: | 2011
Fonte/Imprenta: | Trends in Entomology, v. 7, p. 37-44, 2011.
Idioma: | Inglês
Conteúdo: | Coccinellidae are predators on the soil surface of Diabrotica spp. and Cerotoma spp. larvae. Moreover, Coccinellidae may use substances produced by Chrysomelidae adults to locate them and to find other prey in the aerial part of plants and dispersal in crops, which is important for biological control. This work was done at the National Research Center of Corn and Sorghum (CNPMS) in Sete Lagoas, Minas Gerais State, Brazil. Crotalaria juncea (L.) (Fabaceae) was sown in a pesticide-free area and insects on the aerial parts were collected from six 200m² sample areas with an entomological net when the plants were 12 to 48-d-old. Adult specimens of Diabrotica speciosa (Germar, 1824), and Cerotoma arcuatus (Olivier, 1791) (Coleoptera: Chrysomelidae), Coleomegilla maculata (De Geer, 1775), and Cycloneda sanguinea (L., 1763) (Coleoptera: Coccinellidae), and unidentified larvae of Coccinellidae were collected. There were fewer C. arcuatus (5.93 ± 1.29 - total/number of sample areas) than D. speciosa (11.71 ± 1.29) and there were more adult C. sanguinea (1.43 ± 0.24) than C. maculata (0.36 ± 0.24). There were approximately four times as many adult Coccinellidae (1.71 ± 0.29) as larvae (0.43 ± 0.29), and there were fewer Chrysomelidae (88.8%) than Coccinellidae (11.2%). The numbers of insects from these families were similar on 9-17 and 19-30 January and 2-14 February. Chrysomelidae and Coccinellidae were found on C. juncea and, therefore, the chemical attraction of these insects could be used to advantage in pest management programs in this culture.
Thesagro: | Controle biológico; Praga de planta.
Thesaurus Nal: | Biological control; Plant pests.
Categoria do assunto: | H Saúde e Patologia
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (24111-1) - UPC - AP - DD -  -  -  - DIS