RT info:eu-repo/semantics/doctoralThesis
T1 Evaluación de un sistema de monitoreo de Drosophila suzukii Matsumura mediante el uso de microencapsulados en un huerto de cerezos de la Región de La Araucanía, Chile.
A1 Lizama Vera, Marcelo Gonzalo
A2 Universidad de Valladolid. Escuela de Doctorado
K1 Plagas - monitoreo
K1 Bait
K1 Cebo
K1 Tramp
K1 Trampa
K1 Spotted wing drosophila
K1 Drosofila de alas manchadas
K1 Microencapsulated
K1 Microencapsulados
K1 31 Ciencias Agrarias
AB Drosophila suzukii (DS) is a pest that is widespread in Asia, Europe and the United States (1937-2008). In South America it was reported in Brazil, Uruguay and Argentina between 2013 and 2014. In Chile it was first recorded in June 2017 in traps located at the border crossing with Argentina, Maluil Malal, in the La Araucanía Region. The insect causes damage because it deposits its eggs under the skin of ripe or ripening fruits, from which a larva emerges that feeds on the pulp, causing the fruit to lose its turgor and thereby decreasing its commercial value. Although the economic damage caused by the pest in our country has only been estimated in the Ñuble region with losses equivalent to 5,000 - 17,550 dollars/ha, in the United States, losses estimated at US$ 511 million have been reported in strawberry, cherry, raspberry, blueberry and blackberry crops in 2008, which is due to the aggressiveness of this insect, with reports of up to 65 individuals emerging per fruit. Due to the quarantine importance of this pest, monitoring its populations and using predictive models of population development are the starting point of any control program. Currently, although the Agricultural and Livestock Service (SAG) has made efforts to detect its presence, identification and actions to follow; there is no national plan for early monitoring within the permanent management tasks in fruit orchards. Considering the importance of this insect for the economy of an exporting country like ours, it is noteworthy that there are no studies on the behavior and optimization of traps and their respective baits and release systems related to DS. The purpose of this project is to evaluate a monitoring system using microencapsulated and adhesive delta traps that allows effective control of the pest and that can be implemented throughout the country. For this reason, the use of an adhesive delta trap is proposed for the capture of DS, developing a microencapsulated bait that attracts DS that has a better release rate, which is one of the problems that current baits present in the orchard. It is expected that the adhesive delta trap and the use of microencapsulated traps will be more effective than the systems currently used, prolonging the useful life of the bait when used. This packaging technology will have a better release rate, without the current difficulties that lie in the transfer of waste for the disposal of liquid baits when they lose their effectiveness or problems due to the decomposition of the samples, which makes it difficult to count clearly or to later recognize them in the laboratory since the insects are in a liquid medium. Regarding the attractant to be used, in a first stage work is contemplated within the laboratory to carry out preference studies of DS and the different bait formulations for this purpose; where two formulations will be evaluated, those used by the SAG (vinegar and yeast) and another reported in the literature (wine, vinegar and molasses), which do not represent damage to the environment or risk to the operator. The bait that presents a better response in the laboratory through preference tests will be encapsulated and evaluated in adhesive traps that will be distributed in the field in field trials.
YR 2025
FD 2025
LK https://uvadoc.uva.es/handle/10324/75950
UL https://uvadoc.uva.es/handle/10324/75950
LA spa
NO Escuela de Doctorado
DS UVaDOC
RD 24-jun-2025