UFV - Dissertações
URI permanente para esta coleçãohttps://thoth.dti.ufv.br/handle/123456789/3
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Item Intercropped plants as a reservoir of predatory mites in coffee crop with a description of a new species(Universidade Federal de Viçosa, 2021-08-27) Ferla, Júlia Jantsch; Pallini Filho, Angelo; Perez, André Lage; Araújo, Gustavo Júnior de; Venzon, Madelaine; Ferla, Noeli JuarezThis is the case of coffee crops in Brazil, which are of great importance to the country's economy. Currently, Brazil is the world main coffee exporter and the conventional system production consists in a monoculture with low plant diversification that uses chemical inputs to control pests. This system not only affects the target pest species, different arthropods and pathogens but also many other beneficial species that can play important roles in maintaining the ecosystem due to the services they provide, such as pollination and biological control. Hence, the conservation biological control can be an alternative to pesticides while controlling insect and mite pests in agroecosystems. The use of conservation biological control practices could be done with a variety of integrated strategies using ecological services from the local biodiversity. One strategy is using plants that provide shelter and alternative food to predatory mites, such as nectar and pollen, increasing biodiversity in agroecosystems in order to reach a sustainable control of pests. | studied the mite community from a taxonomic perspective in a coffee system intercropped interspersed on a side strip with plants that provided nectar and pollen for the arthropod community. My aim was to evaluate if the communities of predators and phytophagous mites present on coffee crops changed if their distance from the selected Intercropped Plants Species (IPS) increased. | also investigated the composition of predatory and phytophagous mite species on the IPS and assessed the role of these plants as a conservative biological control strategy. Finally, | described a new Tydeidae species sampled on coffee and Inga plants. The study was carried out at the EPAMIG Experimental Farm, in Patrocínio county, Minas Gerais state. To do so, the mites were recorded on IPS and in different distances on coffee transects of 16 m (4, 8, 12 and 16 meters) extending from IPS. Morphological identification of the new tydeid species was made with a microscope with phase contrast and dichotomous key and drawings were made using Adobe lllustrator® program. | show that the IPS do not modify the community of predators and phytophagous mites in coffee along the distance, but they harbor herbivorous mites that are not pests on coffee. Those mites can be an alternative prey to increase the population of predators on these plants, assisting in the biological control of mite pests in the coffee crops. Keywords: Conservative biological control. Agroecosystem diversification. Ecosystem service. Tydeidae. Taxonomy.Item Intercropped plants as a reservoir of predatory mites in coffee crop with a description of a new species(Universidade Federal de Viçosa, 2021-08-27) Ferla, Júlia Jantsch; Pallini Filho, Angelo; Ferla, Noeli Juarez; Venzon, Madelaine; Araújo, Gustavo Júnior de; Lage Perez, AndréThis is the case of coffee crops in Brazil, which are of great importance to the country's economy. Currently, Brazil is the world main coffee exporter and the conventional system production consists in a monoculture with low plant diversification that uses chemical inputs to control pests. This system not only affects the target pest species, different arthropods and pathogens but also many other beneficial species that can play important roles in maintaining the ecosystem due to the services they provide, such as pollination and biological control. Hence, the conservation biological control can be an alternative to pesticides while controlling insect and mite pests in agroecosystems. The use of conservation biological control practices could be done with a variety of integrated strategies using ecological services from the local biodiversity. One strategy is using plants that provide shelter and alternative food to predatory mites, such as nectar and pollen, increasing biodiversity in agroecosystems in order to reach a sustainable control of pests. | studied the mite community from a taxonomic perspective in a coffee system intercropped interspersed on a side strip with plants that provided nectar and pollen for the arthropod community. My aim was to evaluate if the communities of predators and phytophagous mites present on coffee crops changed if their distance from the selected Intercropped Plants Species (IPS) increased. | also investigated the composition of predatory and phytophagous mite species on the IPS and assessed the role of these plants as a conservative biological control strategy. Finally, | described a new Tydeidae species sampled on coffee and Inga plants. The study was carried out at the EPAMIG Experimental Farm, in Patrocínio county, Minas Gerais state. To do so, the mites were recorded on IPS and in different distances on coffee transects of 16 m (4, 8, 12 and 16 meters) extending from IPS. Morphological identification of the new tydeid species was made with a microscope with phase contrast and dichotomous key and drawings were made using Adobe lllustrator® program. | show that the IPS do not modify the community of predators and phytophagous mites in coffee along the distance, but they harbor herbivorous mites that are not pests on coffee. Those mites can be an alternative prey to increase the population of predators on these plants, assisting in the biological control of mite pests in the coffee crops. Keywords: Conservative biological control. Agroecosystem diversification. Ecosystem service. Tydeidae. Taxonomy.