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| Author(s): |
Felipe Santa Rosa do Amaral
Total Authors: 1
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| Document type: | Master's Dissertation |
| Institution: | Universidade Estadual Paulista (Unesp) |
| Defense date: | 2017-06-09 |
| Advisor: | Antonio Carlos Lofego |
| Abstract | |
Phytoseiidae is a family which includes mites considered predators, some of which are widely used in biological control programs around the world. However, considering the diversity of the group little is known about the biological features. Thus, this study aimed to investigate the biological parameters of two species: Amblyseius aerialis Muma and Amblyseius chiapensis Cooreman, through two experiments. The first to observe the oviposition of these species with different foods, including several probable prey, and a second to evaluate the whole biological cycle with the most favorable food. In the first case the objective was to observe the foods used, and whether or not there are similarities in the pattern of the diets of these two phytoseiids. In the second, the objective was to determine the development and reproduction parameters of the species, aiming their use as biological control agent in relation to prey used as food. The oviposition tests consisted of evaluation of oviposition in a period of six days. The results showed a different feeding pattern for the two species tested, especially in relation to the probable preferential foods, since two of the foods most favorable to oviposition of A. chiapensis - Tetranychus urticae Koch and Lorryia formosa Cooreman- provide almost negligible ovipositions for A. aerialis. To evaluate more detailed biological parameters, each species of phytoseiid was submitted to a biological test offering the prey that provided the best result in the oviposition test as food. Our results show that both A. aerialis and A. chiapensis are predators capable of developing and ovipositing feeding on prey Raoiella indica Hirst and T. urticae, respectively. Due to the wide geographical distribution and frequency in which both predators are found in nature, we suggest that they may play an important role in the natural control of these preys. About the applied biological control, A. chiapensis presents as a potential candidate to be used in the management of T. urticae. (AU) | |
| FAPESP's process: | 15/13866-1 - Characterization of food profile to species of the genus Amblyseius (Acari: Phytoseiidae) |
| Grantee: | Felipe Santa Rosa Do Amaral |
| Support Opportunities: | Scholarships in Brazil - Master |