| Full text | |
| Author(s): |
T. M. Santos-Cividanes
[1]
;
F. J. Cividanes
[2]
;
L. S. Souza
[3]
;
S. T. S. Matos
[4]
;
T. O. Ramos
[5]
Total Authors: 5
|
| Affiliation: | [1] Instituto Biológico - Brasil
[2] Instituto Biológico - Brasil
[3] Faculdade Quirinópolis - Brasil
[4] Universidade Estadual Paulista. Departamento de Fitossanidade - Brasil
[5] Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais - Brasil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Brazilian Journal of Biology; v. 82, 2022-07-22. |
| Abstract | |
Abstract The Asian lady beetle Harmonia axyridis (Coleoptera: Coccinellidae) is a biological control agent that also may adversely impact other coccinellid species. Life table parameters were used to assess the population growth potential and the effects of interspecific competition between the invasive lady beetle H. axyridis and the native coccinellids Hippodamia convergens and Cycloneda sanguinea (Coleoptera: Coccinellidae) under laboratory conditions at 25 °C, using Schizaphis graminum (Hemiptera: Aphididae) as prey. The effects of the abiotic factors air temperature and humidity on these coccinellids by conducting a survey in a sorghum crop under average conditions of 18.1 °C and 53.5%, respectively, were also assessed. Fecundity was higher in C. sanguinea (1021.0 eggs per female) and H. axyridis (1029.2 eggs per female) than in H. convergens (484.5 eggs per female). The majority of the life table parameters showed no significant differences. The instantaneous rates of population increase (rm) of C. sanguinea, H. axyridis, and H. convergens were 0.195, 0.198, and 0.194 d–1, respectively. Based on the life table parameters obtained in this study, all three species of Coccinellidae showed a similar capacity to control a S. graminum population. (AU) | |
| FAPESP's process: | 07/07348-1 - Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae): bioecological aspects and interaction with Cycloneda sanguinea (Linnaeus, 1763) and Hippodamia convergens Guérin-Meneville, 1842 |
| Grantee: | Terezinha Monteiro dos Santos Cividanes |
| Support Opportunities: | Regular Research Grants |