Revista: | Anais da Academia Brasileira de Ciencias |
Base de datos: | PERIÓDICA |
Número de sistema: | 000420615 |
ISSN: | 0001-3765 |
Autors: | Fernandes, Francisco S1 Godoy, Wesley A.C2 Ramalho, Francisco S1 Garcia, Adriano G2 Santos, Barbara D.B1 Malaquias, Jose B1 |
Institucions: | 1Empresa Brasileira de Pesquisa Agropecuaria, Unidade de Controle Biologico, Campina Grande, Paraiba. Brasil 2Universidade de Sao Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Piracicaba, Sao Paulo. Brasil |
Any: | 2018 |
Període: | Mar |
Volum: | 90 |
Número: | 1 |
Paginació: | 373-384 |
País: | Brasil |
Idioma: | Inglés |
Tipo de documento: | Artículo |
Enfoque: | Analítico, descriptivo |
Resumen en inglés | The intercropping is an important cultural practice commonly used in pest management. It is based on the principle that increased plant diversity in the agro-ecosystem can lead to reductions of pest populations in the crop. The current study aimed to assess the impact the colored fiber cotton-cowpea intercropped systems on Aphis gossypii and Aphis craccivora and on their predator Cycloneda sanguinea and the losses and the dispersion behavior of these aphids and their predator in these cropping systems. The experiment had a randomized block experimental design with two bioassays and four treatments. The number of apterous and alate aphids (A. gossypii) per cotton plant was 1.46 and 1.73 or 1.97 and 2.19 times highest in the solid cotton system than that found in the cotton-cowpea intercropped systems (S1) and (S2), respectively. On the other hand, the cotton-cowpea intercropped systems (S1 and S2) reduced, respectively, in 43% and 31% the number of apterousA. gossypiiper cotton plant compared to the control. Implementing cotton-cowpea intercropped system in the S1 scheme reduced A. gossypii infestation, favored the multiplication of C. sanguinea, and allowed obtaining heavier open bolls |
Disciplines | Agrociencias |
Paraules clau: | Fitopatología, Fitotecnia, Insectos, Algodón, Caupí, Cultivos asociados, Insectos fitófagos, Control biológico, Depredadores, Dinámica de poblaciones, Cycloneda sanguinea, Afidos, Aphis gossypii, Aphis craccivora, Hemiptera |
Keyword: | Phytopathology, Crop husbandry, Insects, Cotton, Cowpea, Intercrops, Phytophagous insects, Population dynamics, Predators, Cycloneda sanguinea, Aphids, Aphis gossypii, Aphis craccivora, Hemiptera |
Text complet: | Texto completo (Ver HTML) |