7 documents found, page 1 of 1
Diversidade genética e possíveis rotas de dispersão de Thaumastocoris peregrinu...
Machado, Dayanna do NascimentoThe bronze bug, Thaumastocoris peregrinus, native from Australia, has become an invasive pest almost worldwide for the past 16 years and is causing significant damage to Eucalyptus and Corymbia trees. The rapid spread of T. peregrinus raised some questions about possible routes used by this insect to invade continents. In this sense, this study aimed to investigate the genetic diversity of 11 populations of T. ...
Occurrence of Amblycerus species in Cordia trichotoma seeds and their influence...
Fleck, Marciane Danniela; Costa, Ervandil Corrêa da; Araújo, Maristela Machado; Schoeninger, Karine; Machado, Leonardo Mortari; Silva, Jéssica Maus daForest species can have their seeds damaged by granivorous insects, especially by those in their larval stage. In this context, this study aims to report the occurrence of Amblycerus species in Cordia trichotoma seeds, to describe their main damage to seeds and effects on germination, as well as their associated hymenopteran parasitoids. Therefore, seven trees were selected in the municipality of Taquaruçu do S...
RELAÇÃO DO USO DO SOLO COM A DIVERSIDADE E A ATIVIDADE DA FAUNA EDÁFICA
Pessotto, Marciane Danniela Fleck; Santana, Natielo Almeida; Jacques, Rodrigo Josemar Seminoti; Freiberg, Joice Aline; Machado, Dayanna do NascimentoObjetivou-se avaliar o efeito de diferentes usos do solo na abundância, riqueza, diversidade e atividade de organismos da fauna edáfica. A fauna do solo foi amostrada em: florestamento de Eucalyptus spp., florestamento de Pinus spp., lavoura de grãos, solo impactado pela construção civil e pastagem natural. Para a avaliação dos organismos da fauna epiedáfica empregou-se o método da armadilha de queda e para a a...
Pecan growth under different soil preparation and hole sizes: coleopterans as b...
Boscardin, Jardel; Costa, Ervandil Corrêa; Paulus, Eloi; Machado, Dayanna do Nascimento; Pedron, Leandra; Silva, Pedro Giovâni daThe study aimed to evaluate the effects of different soil preparation and hole sizes in an orchard of Carya illinoinensis pecan (Wangenh.) K. Koch (Juglandaceae) by the Order Coleoptera fauna. A pecan orchard was established in spacing 7 m x 7 m, in Santa Maria, Rio Grande do Sul State, Brazil in randomized block design, with five blocks and four treatments, using: small pit 20 m x 60 cm (Cp); more harrowing su...
Fauna edáfica em campo nativo, Eucalyptus dunnii e Acacia mearnsii em área de m...
Machado, Dayanna do NascimentoFundação de Amparo a Pesquisa no Estado do Rio Grande do Sul; There are few studies related to soil fauna in coal mining area, mainly in the south region of Rio Grande do Sul state. Therefore, the objective of this study was to determine the composition of soil mesofauna and macrofauna in mined and not mined areas, with different land cover in a coal mine in the Candiota city. Six areas were chosen located with...
First occurrence of Terastia meticulosalis preying on seeds of Erythrina crista...
Pedron, Leandra; Costa, Ervandil Corrêa; Garlet, Juliana; Boscardin, Jardel; Machado, Dayanna do Nascimento; Bolzan, Lisandro CunhaThe present study aimed at identifying which insect species damages seeds of Erythrina crista-galli L. From November 2012 to January 2013, six E. crista-galli trees were selected in the city of Santa Maria, Rio Grande do Sul State, Brazil, and six pods were taken from each tree. Such pods, properly packaged and identified, were taken to UFSM’s forest pest laboratory and stored in plastic containers until the ad...
Scolytids associated with a population of black wattle (Acacia mearnsii De Wild)
Machado, Leonardo Mortari; Costa, Ervandil Corrêa; Magistrali, Iris Cristiane; Boscardin, Jardel; Machado, Dayanna do Nascimento; Garlet, JulianaBlack wattle cultivation is an important source of income in the State of Rio Grande do Sul, Brazil. Due to lack of information concerning the insect fauna in this kind of environment, this paper aims to analyze on a quali-quantitative basis the scolytid species associated with a population of Acacia mearnsii De Wild, in order to identify species that may cause damage to this species. For this, 36 flight-interc...